JSON.NET 序列化时出现 StackOverflowException
JSON.NET StackOverflowException while serialization
当我尝试序列化具有类似结构的对象时，我的 C# 程序 运行 进入 WhosebugException：
- 对象具有相互引用的成员
- 无法尝试捕获（我知道为什么）
- 如果计数设置低于 6500（可能因机器而异），则序列化成功
示例代码如下：
class Chacha
{
public Chacha NextChacha { get; set; }
}
public static readonly JsonSerializerSettings Settings = new JsonSerializerSettings
{
TypeNameHandling = TypeNameHandling.All,
PreserveReferencesHandling = PreserveReferencesHandling.Objects,
ReferenceLoopHandling = ReferenceLoopHandling.Ignore
};
static void Main(string[] args)
{
int count = 15000;
Chacha[] steps = new Chacha[count];
steps[0] = new Chacha();
for (int i = 1; i < count; i++)
{
steps[i] = new Chacha();
steps[i-1].NextChacha = steps[i];
}
string serSteps = JsonConvert.SerializeObject(steps, Settings);
}
JSON.NET 版本为：9.0.1
.NET 框架：4.5.2
任何解决方案如何序列化此结构？
欢迎任何帮助或建议。谢谢
你得到 Whosebug 异常的原因是 Json.NET 是一个递归的，single-pass 树或图形序列化器，当 PreserveReferencesHandling.Objects 启用时，总是序列化 first 每个对象出现。您已经构建了包含 15,000 个元素的 Chacha [] 数组，因此第一个条目是包含顺序链接的所有其他项目的链表的头部。 Json.NET 将尝试通过 15,000 层递归将其序列化为 15,000 层深的嵌套 JSON 对象，并在此过程中溢出堆栈。
因此，您需要做的是仅将整个 table 链接写入列表的 head，作为 JSON 数组。然而，不幸的是，Json.NET 也是一个 contract-based 序列化程序，这意味着无论嵌套深度是多少，它都会在遇到给定类型的对象时尝试编写相同的属性。因此，将 Chacha[] NextChachaList 属性 添加到 Chacha 对象并没有帮助，因为它会在每个级别上写入。相反，有必要创建一个相当复杂的 custom JsonConverter 以 thread-safe 方式跟踪序列化深度，并且仅在顶层写入链接列表。以下是诀窍：
class ChachaConverter : LinkedListItemConverter<Chacha>
{
protected override bool IsNextItemProperty(JsonProperty member)
{
return member.UnderlyingName == "NextChacha"; // Use nameof(Chacha.NextChacha) in latest c#
}
}
public abstract class LinkedListItemConverter<T> : JsonConverter where T : class
{
const string refProperty = "$ref";
const string idProperty = "$id";
const string NextItemListProperty = "nextItemList";
[ThreadStatic]
static int level;
// Increments the nesting level in a thread-safe manner.
int Level { get { return level; } set { level = value; } }
public override bool CanConvert(Type objectType)
{
return typeof(T).IsAssignableFrom(objectType);
}
protected abstract bool IsNextItemProperty(JsonProperty member);
List<T> GetNextItemList(object value, JsonObjectContract contract)
{
var property = contract.Properties.Where(p => IsNextItemProperty(p)).Single();
List<T> list = null;
for (var item = (T)property.ValueProvider.GetValue(value); item != null; item = (T)property.ValueProvider.GetValue(item))
{
if (list == null)
list = new List<T>();
list.Add(item);
}
return list;
}
void SetNextItemLinks(object value, List<T> list, JsonObjectContract contract)
{
var property = contract.Properties.Where(p => IsNextItemProperty(p)).Single();
if (list == null || list.Count == 0)
return;
var previous = value;
foreach (var next in list)
{
if (next == null)
continue;
property.ValueProvider.SetValue(previous, next);
previous = next;
}
}
public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
{
using (new PushValue<int>(Level + 1, () => Level, (old) => Level = old))
{
writer.WriteStartObject();
if (serializer.ReferenceResolver.IsReferenced(serializer, value))
{
writer.WritePropertyName(refProperty);
writer.WriteValue(serializer.ReferenceResolver.GetReference(serializer, value));
}
else
{
writer.WritePropertyName(idProperty);
writer.WriteValue(serializer.ReferenceResolver.GetReference(serializer, value));
var contract = (JsonObjectContract)serializer.ContractResolver.ResolveContract(value.GetType());
// Write the data properties (if any).
foreach (var property in contract.Properties
.Where(p => p.Readable && !p.Ignored && (p.ShouldSerialize == null || p.ShouldSerialize(value))))
{
if (IsNextItemProperty(property))
continue;
var propertyValue = property.ValueProvider.GetValue(value);
if (propertyValue == null && serializer.NullValueHandling == NullValueHandling.Ignore)
continue;
writer.WritePropertyName(property.PropertyName);
serializer.Serialize(writer, propertyValue);
}
if (Level == 1)
{
// Write the NextItemList ONLY AT THE TOP LEVEL
var nextItems = GetNextItemList(value, contract);
if (nextItems != null)
{
writer.WritePropertyName(NextItemListProperty);
serializer.Serialize(writer, nextItems);
}
}
}
writer.WriteEndObject();
}
}
public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
{
if (reader.TokenType == JsonToken.Null)
return null;
var jObject = JObject.Load(reader);
// Detach and process $ref
var refValue = (string)jObject[refProperty].RemoveFromLowestPossibleParent();
if (refValue != null)
{
var reference = serializer.ReferenceResolver.ResolveReference(serializer, refValue);
if (reference != null)
return reference;
}
// Construct the value
var contract = (JsonObjectContract)serializer.ContractResolver.ResolveContract(existingValue == null ? typeof(T) : existingValue.GetType());
T value = (existingValue as T ?? (T)contract.DefaultCreator());
// Detach and process $id
var idValue = (string)jObject[idProperty].RemoveFromLowestPossibleParent();
if (idValue != null)
{
serializer.ReferenceResolver.AddReference(serializer, idValue, value);
}
// Detach the (possibly large) list of next items.
var nextItemList = jObject[NextItemListProperty].RemoveFromLowestPossibleParent();
// populate the data properties (if any)
serializer.Populate(jObject.CreateReader(), value);
// Set the next item references
if (nextItemList != null)
{
var list = nextItemList.ToObject<List<T>>(serializer);
SetNextItemLinks(value, list, contract);
}
return value;
}
}
public struct PushValue<T> : IDisposable
{
Action<T> setValue;
T oldValue;
public PushValue(T value, Func<T> getValue, Action<T> setValue)
{
if (getValue == null || setValue == null)
throw new ArgumentNullException();
this.setValue = setValue;
this.oldValue = getValue();
setValue(value);
}
#region IDisposable Members
// By using a disposable struct we avoid the overhead of allocating and freeing an instance of a finalizable class.
public void Dispose()
{
if (setValue != null)
setValue(oldValue);
}
#endregion
}
public static class JsonExtensions
{
public static JToken RemoveFromLowestPossibleParent(this JToken node)
{
if (node == null)
return null;
var contained = node.AncestorsAndSelf().Where(t => t.Parent is JContainer && t.Parent.Type != JTokenType.Property).FirstOrDefault();
if (contained != null)
contained.Remove();
// Also detach the node from its immediate containing property -- Remove() does not do this even though it seems like it should
if (node.Parent is JProperty)
((JProperty)node.Parent).Value = null;
return node;
}
}
然后，给出稍微修改的class Chacha:
class Chacha
{
public Chacha NextChacha { get; set; }
public long Data { get; set; }
}
为包含 3 个项目的数组生成以下 JSON：
{
"$type": "Question41828014.Chacha[], Tile",
"$values": [
{
"$id": "1",
"Data": 0,
"nextItemList": {
"$type": "System.Collections.Generic.List`1[[Question41828014.Chacha, Tile]], mscorlib",
"$values": [
{
"$id": "2",
"Data": 1
},
{
"$id": "3",
"Data": 2
}
]
}
},
{
"$ref": "2"
},
{
"$ref": "3"
}
]
}
请注意，JSON 深度现在受到严格限制。示例 fiddle。
请注意，一旦您为您的类型指定了自定义转换器，它就需要手动执行所有操作。如果您的类型 Chacha 是多态的并且您需要读写 "$type" 属性，则您需要自己将该逻辑添加到转换器中。
顺便说一句，我推荐TypeNameHandling.Objects而不是TypeNameHandling.All。可以在 JSON 中合理指定对象类型（只要类型正确 ），但应在代码中指定集合类型。这样做可以从数组切换到 List<T>，而无需后读遗留 JSON 文件。
public class Model
{
public int Id { get; set; }
public string Name { get; set; }
public string SurName { get; set; }
}
List<Model> list = new List<Model>();
list.Add(new Model { Id = 1, Name = "Jon", SurName = "Snow"});
var stringJson = JsonConvert.SerializeObject(list, new JsonSerializerSettings
{
PreserveReferencesHandling = PreserveReferencesHandling.Objects
});
MVC 与 Jquery:
通过控制台 nuget 包安装 newtonsoft 包：
安装包 Newtonsoft.json - 版本 6.0.1
控制器：
[HttpPost]
public ActionResult Get_Country()
{
string _data = "";
SqlCommand cmd = new SqlCommand("Get_Country", con);
cmd.CommandType = CommandType.StoredProcedure;
SqlDataAdapter da = new SqlDataAdapter(cmd);
DataSet ds = new DataSet();
da.Fill(ds);
if (ds.Tables[0].Rows.Count > 0)
{
_data = JsonConvert.SerializeObject(ds.Tables[0]);
}
return Json(_data, JsonRequestBehavior.AllowGet);
}
[HttpPost]
public ActionResult Insert(string A,string B,string C,string D)
{
con.Open();
SqlCommand cmd = new SqlCommand("Insert_Employee", con);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddWithValue("@Name", A);
cmd.Parameters.AddWithValue("@CID", B);
cmd.Parameters.AddWithValue("@Gender", C);
cmd.Parameters.AddWithValue("@Hobbies", D);
int count = cmd.ExecuteNonQuery();
con.Close();
return View();
}
[HttpPost]
public ActionResult Get_Employees()
{
string _data = "";
SqlCommand cmd = new SqlCommand("Get_Employees", con);
cmd.CommandType = CommandType.StoredProcedure;
SqlDataAdapter da = new SqlDataAdapter(cmd);
DataSet ds = new DataSet();
da.Fill(ds);
if (ds.Tables[0].Rows.Count > 0)
{
_data = JsonConvert.SerializeObject(ds.Tables[0]);
}
return Json(_data, JsonRequestBehavior.AllowGet);
}
[HttpPost]
public ActionResult EditData(int A)
{
string _data = "";
SqlCommand cmd = new SqlCommand("Get_Employees_Edit", con);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddWithValue("@ID", A);
SqlDataAdapter da = new SqlDataAdapter(cmd);
DataSet ds = new DataSet();
da.Fill(ds);
if (ds.Tables[0].Rows.Count > 0)
{
_data = JsonConvert.SerializeObject(ds.Tables[0]);
}
return Json(_data, JsonRequestBehavior.AllowGet);
}
查看：
脚本：
<script type="text/javascript">
var IDD = "";
$(document).ready(function () {
Get_Country();
GetEmployees();
});
function Get_Country() {
$.ajax({
url: 'Employee/Get_Country',
type: 'post',
data: {},
success: function (_dt) {
_dt = JSON.parse(_dt);
for (var i = 0; i < _dt.length; i++) {
$('#ddlCountry').append($('<option/>').attr('value',_dt[i].CID).text(_dt[i].CName));
}
},
error: function () {
alert('Error in Country Bind');
}
})
}
function SaveData() {
debugger
var HOB = "";
if ($("#btnsave").val() == ("Save")) {
HOB = $('input:checkbox:checked.B').map(function () {
return this.value;
}).get().join(',');
$.ajax({
url: 'Employee/Insert',
type: 'post',
data: { A: $('#txtName').val(), B: $('#ddlCountry').val(), C: $('input:radio[name=A]:checked').val(), D: HOB },
success: function () {
alert('data saved');
GetEmployees();
},
error: function () {
alert('saved error');
}
});
}
}
function GetEmployees() {
debugger
$.ajax({
url: 'Employee/Get_Employees',
type: 'post',
data: {},
async: false,
success: function (_dt) {
_dt = JSON.parse(_dt);
$('#tbl').find("tr:gt(0)").remove();
for (var i = 0; i < _dt.length; i++) {
$('#tbl').append('<tr><td>' + _dt[i].ID + '</td><td>' + _dt[i].Name + '</td><td>' + _dt[i].CName + '</td><td>' + (_dt[i].Gender == 1 ? 'Male' : _dt[i].Gender == 2 ? 'Female' : 'Others') + '</td><td>' + _dt[i].Hobbies + '</td><td><input id="btnEdit" type="button" value="Edit" onclick="EditData(' + _dt[i].ID + ')"/></td><td><input id="btnDelete" type="button" value="Delete" onclick="DeleteData(' + _dt[i].ID + ')"/></td></tr>')
}
},
error: function () {
alert('error in binding');
}
});
}
function EditData(id) {
debugger;
$.ajax({
url: 'Employee/EditData',
type: 'post',
data: { A: id },
success: function (_dt) {
_dt = JSON.parse(_dt);
debugger;
$("#txtName").val(_dt[0].Name);
$("#ddlCountry").val(_dt[0].CID);
$("input[name=A][value=" + _dt[0].Gender + "]").prop('checked', true);
var hbb = _dt[0].Hobbies;
var arr = hbb.split(',');
$('input:checkbox:checked.B').prop('checked', false);
for (var i = 0; i < arr.length; i++) {
$('input:checkbox[class=B][value=' + arr[i] + ']').prop('checked', true);
}
$("#btnsave").val("Update");
IDD = id;
},
error: function () {
alert('edit error !!');
}
});
}
正文：
<table>
<tr>
<td>Name :</td>
<td>
<input id="txtName" type="text" />
</td>
</tr>
<tr>
<td>Country :</td>
<td>
<select id="ddlCountry">
<option value="0"><--Select--></option>
</select>
</td>
</tr>
<tr>
<td>Gender :</td>
<td>
<input type="radio" name="A" value="1" />Male
<input type="radio" name="A" value="2" />Female
<input type="radio" name="A" value="3" />Others
</td>
</tr>
<tr>
<td>Hobbies :</td>
<td>
<input type="checkbox" class="B" value="Cricket" />Cricket
<input type="checkbox" class="B" value="Coding" />Coding
<input type="checkbox" class="B" value="Travelling" />Travelling
<input type="checkbox" class="B" value="Swimming" />Swimming
<input type="checkbox" class="B" value="Movies" />Movies
<input type="checkbox" class="B" value="Typing" />Typing
</td>
</tr>
<tr>
<td></td>
<td>
<input type="button" id="btnsave" value="Save" onclick="SaveData()" />
</td>
</tr>
</table>
<table id="tbl" border="1">
<tr>
<td>ID</td>
<td>Name</td>
<td>Country</td>
<td>Gender</td>
<td>Hobbies</td>
<td>Edit</td>
<td>Delete</td>
</tr>
</table>
Jquery cs code:
```csharp
SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings["DBCS"].ConnectionString);
[WebMethod]
public string GetCountry()
{
string _data = "";
con.Open();
SqlCommand cmd = new SqlCommand("usp_country_get",con);
cmd.CommandType = CommandType.StoredProcedure;
SqlDataAdapter da = new SqlDataAdapter(cmd);
DataSet ds = new DataSet();
da.Fill(ds);
con.Close();
if (ds.Tables[0].Rows.Count > 0)
{
_data = JsonConvert.SerializeObject(ds.Tables[0]);
}
return _data;
}
[WebMethod]
public void Insert(string A, int B, int C, string D)
{
con.Open();
SqlCommand cmd = new SqlCommand("usp_emp_insert", con);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddWithValue("@name", A);
cmd.Parameters.AddWithValue("@cid", B);
cmd.Parameters.AddWithValue("@gender", C);
cmd.Parameters.AddWithValue("@hobbies", D);
cmd.ExecuteNonQuery();
con.Close();
}
[WebMethod]
public void Delete(int ID)
{
con.Open();
SqlCommand cmd = new SqlCommand("usp_emp_delete", con);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddWithValue("@id", ID);
cmd.ExecuteNonQuery();
con.Close();
}
[WebMethod]
public string Edit(int ID)
{
string _data = "";
con.Open();
SqlCommand cmd = new SqlCommand("usp_emp_edit", con);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddWithValue("@id", ID);
SqlDataAdapter da = new SqlDataAdapter(cmd);
DataSet ds = new DataSet();
da.Fill(ds);
con.Close();
if (ds.Tables[0].Rows.Count > 0)
{
_data = JsonConvert.SerializeObject(ds.Tables[0]);
}
return _data;
}
[WebMethod]
public void Update(int ID, string A, int B, int C, string D)
{
con.Open();
SqlCommand cmd = new SqlCommand("usp_emp_update", con);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddWithValue("@id", ID);
cmd.Parameters.AddWithValue("@name", A);
cmd.Parameters.AddWithValue("@cid", B);
cmd.Parameters.AddWithValue("@gender", C);
cmd.Parameters.AddWithValue("@hobbies", D);
cmd.ExecuteNonQuery();
con.Close();
}
[WebMethod]
public string GetEmployee()
{
string _data = "";
con.Open();
SqlCommand cmd = new SqlCommand("usp_emp_get", con);
cmd.CommandType = CommandType.StoredProcedure;
SqlDataAdapter da = new SqlDataAdapter(cmd);
DataSet ds = new DataSet();
da.Fill(ds);
con.Close();
if (ds.Tables[0].Rows.Count > 0)
{
_data = JsonConvert.SerializeObject(ds.Tables[0]);
}
else
{
_data = JsonConvert.SerializeObject(ds.Tables[0]);
}
return _data;
}
```
aspx code:
Scripting :
```html
<script src="jquery-3.2.1.js"></script>
<script type="text/javascript">
var IDD = "";
$(document).ready(function () {
CountryBind();
//EmployeeBind();
});
function CountryBind() {
$.ajax({
url:'Employee.asmx/GetCountry',
type:'post',
contentType:'application/json;charset=utf-8',
dataType:'json',
data:'{}',
async: false,
success: function (_dt) {
_dt = JSON.parse(_dt.d);
for (var i = 0; i < _dt.length; i++) {
$("#ddlcountry").append($('<option/>').attr("value", _dt[i].cid).text(_dt[i].cname));
}
},
error: function () {
alert('CountryBind error');
}
});
}
function SaveData() {
var HOB = "";
HOB = $('input:checkbox:checked.B').map(function () {
return this.value;
}).get().join(',');
if ($("#btnsave").val()==("Save")) {
$.ajax({
url: 'Employee.asmx/Insert',
type: 'post',
contentType: 'application/json;charset=utf-8',
dataType: 'json',
data: "{A:'" + $("#txtname").val() + "',B:'" + $("#ddlcountry").val() + "',C:'" + $('input:radio[name=A]:checked').val() + "',D:'" + HOB + "'}",
success: function () {
alert('insert success !!');
EmployeeBind();
},
error: function () {
alert('insert error !!');
}
});
}
else {
$.ajax({
url: 'Employee.asmx/Update',
type: 'post',
contentType: 'application/json;charset=utf-8',
dataType: 'json',
data: "{ID:" + IDD + ",A:'" + $("#txtname").val() + "',B:'" + $("#ddlcountry").val() + "',C:'" + $('input:radio[name=A]:checked').val() + "',D:'" + HOB + "'}",
success: function () {
alert('Update Successfully');
EmployeeBind();
},
error: function () {
alert('Update error');
}
});
}
}
function EmployeeBind() {
$.ajax({
url: 'Employee.asmx/GetEmployee',
type: 'post',
contentType: 'application/json;charset=utf-8',
dataType: 'json',
data: "{}",
async: false,
success: function (_dt) {
_dt = JSON.parse(_dt.d);
$("#tbl").find("tr:gt(0)").remove();
for (var i = 0; i < _dt.length; i++) {
$("#tbl").append('<tr><td>' + _dt[i].name + '</td><td>' + _dt[i].cname + '</td><td>' + (_dt[i].gender == "1" ? "Male" : _dt[i].gender == "2" ? "FeMale" : "Others") + '</td><td>' + _dt[i].hobbies + '</td><td><input type="button" id="btnedit" value="Edit" onclick="EditData(' + _dt[i].id + ')" /><td><input type="button" id="btndelete" value="Delete" onclick="DeleteData(' + _dt[i].id + ')" /></td</tr>');
}
},
error: function () {
alert('EmployeeBind error');
}
});
}
function DeleteData(id) {
$.ajax({
url: 'Employee.asmx/Delete',
type: 'post',
contentType: 'application/json;charset=utf-8',
dataType: 'json',
data: "{ID:'" + id + "'}",
success: function () {
alert('Delete Successfully');
EmployeeBind();
},
error: function () {
alert('DeleteData error');
}
});
}
function EditData(id) {
$.ajax({
url: 'Employee.asmx/Edit',
type: 'post',
contentType: 'application/json;charset=utf-8',
dataType: 'json',
async:false,
data: "{ID:'" + id + "'}",
success: function (_dt) {
_dt = JSON.parse(_dt.d);
$("#txtname").val(_dt[0].name);
$("#ddlcountry").val(_dt[0].cid);
$("input[name=A][value=" + _dt[0].gender + "]").prop('checked', true);
var hbb = _dt[0].hobbies;
var arr = hbb.split(',');
$("input:checkbox:checked.B").prop('checked', false);
for (var i = 0; i < arr.length; i++) {
$("input:checkbox[class=B][value=" + arr[i] + ']').prop('checked', true);
}
$("#btnsave").val("Update");
IDD = id;
EmployeeBind();
},
error: function () {
alert('EditData error');
}
});
}
</script>
```
Body:
```html
<body>
<table>
<tr>
<td>Name :</td>
<td><input type="text" id="txtname" /></td>
</tr>
<tr>
<td>Country :</td>
<td><select id="ddlcountry">
<option value="0">--Select--</option>
</select>
</td>
</tr>
<tr>
<td>Gender :</td>
<td>
<input type="radio" name="A" value="1" /> male
<input type="radio" name="A" value="2" /> female
<input type="radio" name="A" value="3" /> other
</td>
</tr>
<tr>
<td>Hobbies :</td>
<td>
<input type="checkbox" class="B" value="cricket" /> cricket
<input type="checkbox" class="B" value="music" /> music
<input type="checkbox" class="B" value="movies" /> movies
<input type="checkbox" class="B" value="cooking" /> cooking
<input type="checkbox" class="B" value="coding" /> coding
</td>
</tr>
<tr>
<td></td>
<td><input type="button" id="btnsave" value="Save" onclick="SaveData()" /></td>
</tr>
</table>
<table id="tbl" border="1" style="border-color:darkblue;width:100%">
<tr>
<th>Name</th>
<th>Country</th>
<th>Gender</th>
<th>Hobbies</th>
<th>Edit</th>
<th>Delete</th>
</tr>
</table>
</body>
```
Asp.net Gridview 外部：
ASPX:
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Employee.aspx.cs" Inherits="Asp_outside_gridview.Employee" %>
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="ajax" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<script type="text/javascript">
function Validation() {
var errors = "";
errors += checkname();
errors += dob();
errors += email();
errors += password();
errors += cpassword();
errors += mobile();
errors += salary();
errors += country();
errors += state();
errors += city();
if (errors != "") {
alert(errors);
return false;
}
}
function checkname() {
var TBN=document.getElementById('txtname');
var exp = "/^[a-zA-Z ]{2,30}$/";
if (TBN.value="") {
return 'please enter your NAME!\n'
}
else if (exp.test(TBN.value)) {
return "";
}
else {
'plese enter only alphabets in NAME!\n';
}
}
function dob() {
var TBdob = document.getElementById('txtdob');
if (TBdob.value = "") {
return 'please enter your DATE OF BIRTH!\n'
}
else {
return "";
}
}
function email() {
var TBemail = document.getElementById('txtemail');
var exp = "/^(([^<>()[\]\.,;:\s@\"]+(\.[^<>()[\]\.,;:\s@\"]+)*)|(\".+\"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/";
if (TBemail.value = "") {
return 'please enter your EMAIL ID!\n'
}
else if (exp.test(TBemail.value)) {
return "";
}
else {
'plese enter valid email id!\n';
}
}
function password() {
var TBpassword = document.getElementById('txtpassword');
var exp = "/^(?=.*[a-z])(?=.*[A-Z])(?=.*\d)(?=.*[$@$!%*?&])[A-Za-z\d$@$!%*?&]{8,10}$/";
if (TBpassword.value = "") {
return 'please enter your PASSWORD!\n'
}
else if (exp.test(TBpassword.value)) {
return "";
}
else {
'password should be of Minimum eight and maximum 10 characters, at least one uppercase letter, one lowercase letter, one number and one special character!\n';
}
}
function cpassword() {
var TBpassword = document.getElementById('txtpassword');
var TBcpassword = document.getElementById('txtcpassword');
if (TBcpassword.value = "") {
return 'please enter your CONFIRM PASSWORD!\n'
}
else if (TBpassword.value== TBcpassword.value) {
return "";
}
else {
'password do not match!\n';
}
}
function mobile() {
var TBmobile = document.getElementById('txtmobile');
var exp = /^\d{10}$/;
if (TBmobile.value = "") {
return 'please enter your MOBILE NUMBER!\n'
}
else if (exp.test(TBmobile.value)) {
return "";
}
else {
'plese enter only valid MOBILE NUMBER!\n';
}
}
function salary() {
var TBsalary = document.getElementById('txtsalary');
var exp = /^\d{10}$/;
if (TBsalary.value = "") {
return 'please enter your SALARY!\n'
}
else if (exp.test(TBsalary.value)) {
return "";
}
else {
'plese enter only numbers in SALARY!\n';
}
}
function country() {
var TBcountry = document.getElementById('ddlcountry');
if (TBcountry.value = "0") {
return 'please Select your Country!\n'
}
else {
return "";
}
}
function state() {
var TBstate = document.getElementById('ddlstate');
if (TBstate.value = "0") {
return 'please Select your State!\n'
}
else {
return "";
}
}
function city() {
var TBcity = document.getElementById('ddlcity');
if (TBcity.value = "0") {
return 'please Select your City!\n'
}
else {
return "";
}
}
</script>
<title></title>
</head>
<body>
<form id="form1" runat="server">
<ajax:ToolkitScriptManager ID="ajaxcal" runat="server"></ajax:ToolkitScriptManager>
<div>
<table>
<tr>
<td>Name :</td>
<td><asp:TextBox ID="txtname" runat="server" /></td>
</tr>
<tr>
<td>Country :</td>
<td><asp:DropDownList ID="ddlcountry" AutoPostBack="true" runat="server" OnSelectedIndexChanged="ddlcountry_SelectedIndexChanged"></asp:DropDownList></td>
</tr>
<tr>
<td>State :</td>
<td><asp:DropDownList ID="ddlstate" runat="server" AutoPostBack="true"></asp:DropDownList></td>
</tr>
<tr>
<td>Date of Birth :</td>
<td><asp:TextBox ID="txtdob" runat="server" />
<ajax:CalendarExtender ID="caldob" runat="server" Format="dd/MM/yyyy" PopupButtonID="txtdob" TargetControlID="txtdob" PopupPosition="Right"></ajax:CalendarExtender></td>
</tr>
<tr>
<td>Gender :</td>
<td>
<asp:RadioButtonList ID="rblgender" runat="server" RepeatColumns="3">
<asp:ListItem Text="Male" Value="1"/>
<asp:ListItem Text="Female" Value="2" />
<asp:ListItem Text="Others" Value="3" />
</asp:RadioButtonList></td>
</tr>
<tr>
<td>Image :</td>
<td><asp:FileUpload ID="fuimage" runat="server" /><asp:Label ID="lblmsg" runat="server" ForeColor="Red" Font-Bold="true"></asp:Label></td>
</tr>
<tr>
<td>Hobbies :</td>
<td>
<asp:CheckBoxList ID="chkhobbies" runat="server" RepeatColumns="5">
<asp:ListItem Text="Cricket"></asp:ListItem>
<asp:ListItem Text="Football" ></asp:ListItem>
<asp:ListItem Text="Coding" ></asp:ListItem>
<asp:ListItem Text="Reading" ></asp:ListItem>
<asp:ListItem Text="Travelling" ></asp:ListItem>
<asp:ListItem Text="Gym" ></asp:ListItem>
<asp:ListItem Text="Singing" ></asp:ListItem>
<asp:ListItem Text="Dancing" ></asp:ListItem>
<asp:ListItem Text="Music" ></asp:ListItem>
<asp:ListItem Text="Movies" ></asp:ListItem>
<asp:ListItem Text="Cooking" ></asp:ListItem>
</asp:CheckBoxList></td>
</tr>
<tr>
<td>IsActive :</td>
<td><asp:CheckBox ID="chkisactive" runat="server" /></td>
</tr>
<tr>
<td></td>
<td><asp:Button ID="btnsave" Text="Save" runat="server" OnClick="btnsave_Click" /></td>
</tr>
<tr>
<td></td>
<td>
<asp:GridView ID="grd" runat="server" AutoGenerateColumns="false" OnRowCommand="grd_RowCommand">
<Columns>
<asp:TemplateField HeaderText="ID">
<ItemTemplate>
<%#Eval("id") %>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Name">
<ItemTemplate>
<%#Eval("name") %>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="country">
<ItemTemplate>
<%#Eval("cname") %>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="state">
<ItemTemplate>
<%#Eval("sname") %>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Date of Birth">
<ItemTemplate>
<%#Eval("dob") %>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Gender">
<ItemTemplate>
<%#Eval("gender").ToString() == "1" ? "Male" : Eval("gender").ToString() == "2" ? "Female" :"Others" %>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Images">
<ItemTemplate>
<asp:Image ID="img" runat="server" Width="50px" Height="40px" ImageUrl='<%#Eval("image","~/Employee/{0}") %>' />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Hobbies">
<ItemTemplate>
<%#Eval("hobbies") %>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Status">
<ItemTemplate>
<%#Eval("isactive").ToString() == "1" ? "Active" : "Inactive" %>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Delete">
<ItemTemplate>
<asp:LinkButton ID="lnkbtndelete" runat="server" Text="Delete" CommandName="DLT" CommandArgument='<%#Eval("id") %>'></asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Edit">
<ItemTemplate>
<asp:LinkButton ID="lnkbtnedit" runat="server" Text="Edit" CommandName="EDT" CommandArgument='<%#Eval("id") %>'></asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
</td>
</tr>
</table>
</div>
</form>
</body>
</html>
C#:
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
Fill_Country();
ddlstate.Items.Insert(0, new ListItem("--Select--", "0"));
Fill_Grid();
}
}
public void Fill_Country()
{
con.Open();
SqlCommand cmd = new SqlCommand("usp_country_get", con);
cmd.CommandType = CommandType.StoredProcedure;
SqlDataAdapter da = new SqlDataAdapter(cmd);
DataSet ds = new DataSet();
da.Fill(ds);
con.Close();
if (ds.Tables[0].Rows.Count > 0)
{
ddlcountry.DataValueField = "cid";
ddlcountry.DataTextField = "cname";
ddlcountry.DataSource = ds;
ddlcountry.DataBind();
ddlcountry.Items.Insert(0, new ListItem("--Select--", "0"));
}
}
public void Fill_State(string cid)
{
con.Open();
SqlCommand cmd = new SqlCommand("usp_state_get", con);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddWithValue("@cid", cid);
SqlDataAdapter da = new SqlDataAdapter(cmd);
DataSet ds = new DataSet();
da.Fill(ds);
con.Close();
if (ds.Tables[0].Rows.Count > 0)
{
ddlstate.DataValueField = "sid";
ddlstate.DataTextField = "sname";
ddlstate.DataSource = ds;
ddlstate.DataBind();
ddlstate.Items.Insert(0, new ListItem("--Select--", "0"));
}
}
public void Fill_Grid()
{
con.Open();
SqlCommand cmd = new SqlCommand("usp_emp_get", con);
cmd.CommandType = CommandType.StoredProcedure;
SqlDataAdapter da = new SqlDataAdapter(cmd);
DataSet ds = new DataSet();
da.Fill(ds);
con.Close();
if (ds.Tables[0].Rows.Count > 0)
{
grd.DataSource = ds;
grd.DataBind();
}
else
{
grd.DataSource = null;
grd.DataBind();
}
}
protected void ddlcountry_SelectedIndexChanged(object sender, EventArgs e)
{
Fill_State(ddlcountry.SelectedValue);
}
protected void btnsave_Click(object sender, EventArgs e)
{
if (btnsave.Text == "Save")
{
string HOB = "";
string FN = "";
string Ext = "";
Ext = Path.GetExtension(fuimage.PostedFile.FileName);
if (Ext.ToLower() == ".jpg" || Ext.ToLower() == ".jpeg" || Ext.ToLower() == ".png")
{
for (int i = 0; i < chkhobbies.Items.Count; i++)
{
if (chkhobbies.Items[i].Selected == true)
{
HOB += chkhobbies.Items[i].Text + ",";
}
}
HOB = HOB.TrimEnd(',');
FN = DateTime.Now.Ticks.ToString() + Path.GetFileName(fuimage.PostedFile.FileName);
fuimage.SaveAs(Server.MapPath("Employee" + "\" + FN));
con.Open();
SqlCommand cmd = new SqlCommand("usp_emp_insert", con);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddWithValue("@name", txtname.Text);
cmd.Parameters.AddWithValue("@cid", ddlcountry.SelectedValue);
cmd.Parameters.AddWithValue("@sid", ddlstate.SelectedValue);
cmd.Parameters.AddWithValue("@dob", txtdob.Text);
cmd.Parameters.AddWithValue("@gender", rblgender.SelectedValue);
cmd.Parameters.AddWithValue("@image", FN);
cmd.Parameters.AddWithValue("@hobbies", HOB);
cmd.Parameters.AddWithValue("@isactive", chkisactive.Checked == true ? 1 : 0);
cmd.ExecuteNonQuery();
con.Close();
}
else
{
lblmsg.Text = "please upload only image file !!";
}
}
else
{
string HOB = "";
string FN = "";
string Ext = "";
Ext = Path.GetExtension(fuimage.PostedFile.FileName);
if (Ext.ToLower() == ".jpg" || Ext.ToLower() == ".jpeg" || Ext.ToLower() == ".png")
{
for (int i = 0; i < chkhobbies.Items.Count; i++)
{
if (chkhobbies.Items[i].Selected == true)
{
HOB += chkhobbies.Items[i].Text + ",";
}
}
HOB = HOB.TrimEnd(',');
FN = DateTime.Now.Ticks.ToString() + Path.GetFileName(fuimage.PostedFile.FileName);
fuimage.SaveAs(Server.MapPath("Employee" + "\" + FN));
File.Delete(Server.MapPath("Employee" + "\" + ViewState["IMG"]));
con.Open();
SqlCommand cmd = new SqlCommand("usp_emp_update", con);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddWithValue("@id", ViewState["ID"]);
cmd.Parameters.AddWithValue("@name", txtname.Text);
cmd.Parameters.AddWithValue("@cid", ddlcountry.SelectedValue);
cmd.Parameters.AddWithValue("@sid", ddlstate.SelectedValue);
cmd.Parameters.AddWithValue("@dob", txtdob.Text);
cmd.Parameters.AddWithValue("@gender", rblgender.SelectedValue);
cmd.Parameters.AddWithValue("@image", FN);
cmd.Parameters.AddWithValue("@hobbies", HOB);
cmd.Parameters.AddWithValue("@isactive", chkisactive.Checked == true ? 1 : 0);
cmd.ExecuteNonQuery();
con.Close();
}
else
{
lblmsg.Text = "please upload only image file !!";
}
}
Fill_Grid();
}
protected void grd_RowCommand(object sender, GridViewCommandEventArgs e)
{
if (e.CommandName=="EDT")
{
con.Open();
SqlCommand cmd = new SqlCommand("usp_emp_edit", con);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddWithValue("@id", e.CommandArgument);
SqlDataAdapter da = new SqlDataAdapter(cmd);
DataSet ds = new DataSet();
da.Fill(ds);
con.Close();
if (ds.Tables[0].Rows.Count > 0)
{
txtname.Text = ds.Tables[0].Rows[0]["name"].ToString();
ddlcountry.SelectedValue = ds.Tables[0].Rows[0]["cid"].ToString();
Fill_State(ddlcountry.SelectedValue);
ddlstate.SelectedValue = ds.Tables[0].Rows[0]["sid"].ToString();
txtdob.Text=ds.Tables[0].Rows[0]["dob"].ToString();
rblgender.SelectedValue = ds.Tables[0].Rows[0]["gender"].ToString() == "1" ? "1" : ds.Tables[0].Rows[0]["gender"].ToString() == "2" ? "2" : "3";
chkisactive.Checked = ds.Tables[0].Rows[0]["isactive"].ToString() == "1" ? true : false;
string[] arr = ds.Tables[0].Rows[0]["hobbies"].ToString().Split(',');
chkhobbies.ClearSelection();
for (int i = 0; i < chkhobbies.Items.Count; i++)
{
for (int j = 0; j < arr.Length; j++)
{
if (chkhobbies.Items[i].Text == arr[j])
{
chkhobbies.Items[i].Selected = true;
break;
}
}
}
ViewState["IMG"] = ds.Tables[0].Rows[0]["image"].ToString();
btnsave.Text = "Update";
ViewState["ID"] = e.CommandArgument;
}
}
else if(e.CommandName == "DLT")
{
con.Open();
SqlCommand cmd = new SqlCommand("usp_emp_delete", con);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddWithValue("@id", e.CommandArgument);
SqlParameter param = cmd.Parameters.Add("@image", SqlDbType.VarChar, 50);
param.Direction = ParameterDirection.Output;
cmd.ExecuteNonQuery();
con.Close();
string Old_image = cmd.Parameters["@image"].Value.ToString();
File.Delete(Server.MapPath("Employee" + "\" + Old_image));
Fill_Grid();
}
}
Asp.net Inside Gridview:
aspx:
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Employee.aspx.cs" Inherits="Asp_inside_gridview.Employee" %>
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="ajax" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<ajax:ToolkitScriptManager ID="ajaxcal" runat="server"></ajax:ToolkitScriptManager>
<div>
<table>
<tr>
<td>Name :</td>
<td><asp:TextBox ID="txtname" runat="server" /></td>
</tr>
<tr>
<td>Country :</td>
<td><asp:DropDownList ID="ddlcountry" runat="server" ></asp:DropDownList></td>
</tr>
<tr>
<td>Date of Birth :</td>
<td><asp:TextBox ID="txtdob" runat="server" />
<ajax:CalendarExtender ID="caldob" runat="server" Format="dd/MM/yyyy" PopupButtonID="txtdob" TargetControlID="txtdob" PopupPosition="BottomRight"></ajax:CalendarExtender></td>
</tr>
<tr>
<td>Gender :</td>
<td>
<asp:RadioButtonList ID="rblgender" runat="server" RepeatColumns="3">
<asp:ListItem Text="Male" Value="1"/>
<asp:ListItem Text="Female" Value="2" />
<asp:ListItem Text="Others" Value="3" />
</asp:RadioButtonList></td>
</tr>
<tr>
<td>Image :</td>
<td><asp:FileUpload ID="fuimage" runat="server" /><asp:Label ID="lblmsg" runat="server" ForeColor="Red" Font-Bold="true"></asp:Label></td>
</tr>
<tr>
<td>Hobbies :</td>
<td>
<asp:CheckBoxList ID="chkhobbies" runat="server" RepeatColumns="5">
<asp:ListItem Text="Cricket"></asp:ListItem>
<asp:ListItem Text="Football" ></asp:ListItem>
<asp:ListItem Text="Coding" ></asp:ListItem>
<asp:ListItem Text="Reading" ></asp:ListItem>
<asp:ListItem Text="Travelling" ></asp:ListItem>
<asp:ListItem Text="Gym" ></asp:ListItem>
<asp:ListItem Text="Singing" ></asp:ListItem>
<asp:ListItem Text="Dancing" ></asp:ListItem>
<asp:ListItem Text="Music" ></asp:ListItem>
<asp:ListItem Text="Movies" ></asp:ListItem>
<asp:ListItem Text="Cooking" ></asp:ListItem>
</asp:CheckBoxList></td>
</tr>
<tr>
<td>IsActive :</td>
<td><asp:CheckBox ID="chkisactive" runat="server" /></td>
</tr>
<tr>
<td></td>
<td><asp:Button ID="btnsave" Text="Save" runat="server" OnClick="btnsave_Click" /></td>
</tr>
<tr>
<td></td>
<td>
<asp:GridView ID="grd" runat="server" AutoGenerateColumns="false" DataKeyNames="id" OnRowUpdating="grd_RowUpdating" OnRowEditing="grd_RowEditing" OnRowCancelingEdit="grd_RowCancelingEdit" OnRowDeleting="grd_RowDeleting" OnRowDataBound="grd_RowDataBound" >
<Columns>
<asp:TemplateField HeaderText="ID">
<ItemTemplate>
<%#Eval("id") %>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Name">
<ItemTemplate>
<%#Eval("name") %>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="txteditname" runat="server" Text='<%#Eval("name") %>'></asp:TextBox>
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="country">
<ItemTemplate>
<%#Eval("cname") %>
</ItemTemplate>
<EditItemTemplate>
<asp:DropDownList ID="ddleditcountry" runat="server"></asp:DropDownList>
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Date of Birth">
<ItemTemplate>
<%#Eval("dob") %>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="txteditdob" runat="server" Text='<%#Eval("dob") %>' />
<ajax:CalendarExtender ID="caleditdob" runat="server" Format="dd/MM/yyyy" PopupButtonID="txteditdob" TargetControlID="txteditdob" PopupPosition="BottomRight"></ajax:CalendarExtender>
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Gender">
<ItemTemplate>
<%#Eval("gender").ToString() == "1" ? "Male" : Eval("gender").ToString() == "2" ? "Female" :"Others" %>
</ItemTemplate>
<EditItemTemplate>
<asp:RadioButtonList ID="rbleditgender" runat="server" RepeatColumns="3">
<asp:ListItem Text="Male" Value="1"/>
<asp:ListItem Text="Female" Value="2" />
<asp:ListItem Text="Others" Value="3" />
</asp:RadioButtonList>
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Images">
<ItemTemplate>
<asp:Image ID="img" runat="server" Width="100px" Height="80px" ImageUrl='<%#Eval("image","~/Employee/{0}") %>' />
</ItemTemplate>
<EditItemTemplate>
<asp:FileUpload ID="fueditimages" runat="server"></asp:FileUpload>
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Hobbies">
<ItemTemplate>
<%#Eval("hobbies") %>
</ItemTemplate>
<EditItemTemplate>
<asp:CheckBoxList ID="chkedithobbies" runat="server" RepeatColumns="3">
<asp:ListItem Text="Cricket"></asp:ListItem>
<asp:ListItem Text="Football" ></asp:ListItem>
<asp:ListItem Text="Coding" ></asp:ListItem>
<asp:ListItem Text="Reading" ></asp:ListItem>
<asp:ListItem Text="Travelling" ></asp:ListItem>
<asp:ListItem Text="Gym" ></asp:ListItem>
<asp:ListItem Text="Singing" ></asp:ListItem>
<asp:ListItem Text="Dancing" ></asp:ListItem>
<asp:ListItem Text="Music" ></asp:ListItem>
<asp:ListItem Text="Movies" ></asp:ListItem>
<asp:ListItem Text="Cooking" ></asp:ListItem>
</asp:CheckBoxList>
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Status">
<ItemTemplate>
<%#Eval("isactive").ToString() == "1" ? "Active" : "Inactive" %>
</ItemTemplate>
<EditItemTemplate>
<asp:CheckBox ID="chkeditisactive" runat="server" />
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Delete">
<ItemTemplate>
<asp:LinkButton ID="lnkbtndelete" runat="server" Text="Delete" CommandName="Delete" CommandArgument='<%#Eval("id") %>'></asp:LinkButton>
<asp:LinkButton ID="lnkbtnedit" runat="server" Text="Edit" CommandName="Edit" CommandArgument='<%#Eval("id") %>'></asp:LinkButton>
</ItemTemplate>
<EditItemTemplate>
<asp:LinkButton ID="lnkbtnupdate" runat="server" Text="Update" CommandName="Update"></asp:LinkButton>
<asp:LinkButton ID="lnkbtncancel" runat="server" Text="Cancel" CommandName="Cancel"></asp:LinkButton>
</EditItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
</td>
</tr>
</table>
</div>
</form>
</body>
</html>
cs:
protected void Page_Load(object sender, EventArgs e)
{
如果（！IsPostBack）
{
Fill_Country();
Fill_Grid();
}
}
public void Fill_Country()
{
con.Open();
SqlCommand cmd = new SqlCommand("usp_country_get", con);
cmd.CommandType = CommandType.StoredProcedure;
SqlDataAdapter da = new SqlDataAdapter(cmd);
DataSet ds = new DataSet();
da.Fill(ds);
con.Close();
if (ds.Tables[0].Rows.Count > 0)
{
ddlcountry.DataValueField = "cid";
ddlcountry.DataTextField = "cname";
ddlcountry.DataSource = ds;
ddlcountry.DataBind();
ddlcountry.Items.Insert(0, new ListItem("--Select--", "0"));
}
}
public void Fill_Grid()
{
con.Open();
SqlCommand cmd = new SqlCommand("usp_emp_get", con);
cmd.CommandType = CommandType.StoredProcedure;
SqlDataAdapter da = new SqlDataAdapter(cmd);
DataSet ds = new DataSet();
da.Fill(ds);
con.Close();
if (ds.Tables[0].Rows.Count > 0)
{
grd.DataSource = ds;
grd.DataBind();
}
else
{
grd.DataSource = null;
grd.DataBind();
}
}
protected void btnsave_Click(object sender, EventArgs e)
{
string HOB = "";
string FN = "";
string Ext = "";
Ext = Path.GetExtension(fuimage.PostedFile.FileName);
if (Ext.ToLower() == ".jpg" || Ext.ToLower() == ".jpeg" || Ext.ToLower() == ".png")
{
for (int i = 0; i < chkhobbies.Items.Count; i++)
{
if (chkhobbies.Items[i].Selected == true)
{
HOB += chkhobbies.Items[i].Text + ",";
}
}
HOB = HOB.TrimEnd(',');
FN = DateTime.Now.Ticks.ToString() + Path.GetFileName(fuimage.PostedFile.FileName);
fuimage.SaveAs(Server.MapPath("Employee" + "\" + FN));
con.Open();
SqlCommand cmd = new SqlCommand("usp_emp_insert", con);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddWithValue("@name", txtname.Text);
cmd.Parameters.AddWithValue("@cid", ddlcountry.SelectedValue);
cmd.Parameters.AddWithValue("@dob", txtdob.Text);
cmd.Parameters.AddWithValue("@gender", rblgender.SelectedValue);
cmd.Parameters.AddWithValue("@image", FN);
cmd.Parameters.AddWithValue("@hobbies", HOB);
cmd.Parameters.AddWithValue("@isactive", chkisactive.Checked == true ? 1 : 0);
cmd.ExecuteNonQuery();
con.Close();
}
else
{
lblmsg.Text = "please upload only image file !!";
}
Fill_Grid();
}
protected void grd_RowEditing(object sender, GridViewEditEventArgs e)
{
grd.EditIndex = e.NewEditIndex;
Fill_Grid();
}
protected void grd_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
{
grd.EditIndex = -1;
Fill_Grid();
}
protected void grd_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
string IDD = grd.DataKeys[e.RowIndex].Value.ToString();
con.Open();
SqlCommand cmd = new SqlCommand("usp_emp_delete", con);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddWithValue("@id", IDD);
SqlParameter param = cmd.Parameters.Add("@image", SqlDbType.VarChar, 50);
param.Direction = ParameterDirection.Output;
cmd.ExecuteNonQuery();
con.Close();
string PPP = cmd.Parameters["@image"].Value.ToString();
File.Delete(Server.MapPath("Employee" + "\" + PPP));
Fill_Grid();
}
protected void grd_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
if ((e.Row.RowState & DataControlRowState.Edit) > 0)
{
DropDownList DDL = (DropDownList)e.Row.FindControl("ddleditcountry");
CheckBoxList CBL = (CheckBoxList)e.Row.FindControl("chkedithobbies");
RadioButtonList RBL = (RadioButtonList)e.Row.FindControl("rbleditgender");
CheckBox CBIA = (CheckBox)e.Row.FindControl("chkeditisactive");
con.Open();
SqlCommand cmd = new SqlCommand("usp_country_get", con);
cmd.CommandType = CommandType.StoredProcedure;
SqlDataAdapter da = new SqlDataAdapter(cmd);
DataSet ds = new DataSet();
da.Fill(ds);
con.Close();
if (ds.Tables[0].Rows.Count > 0)
{
DDL.DataValueField = "cid";
DDL.DataTextField = "cname";
DDL.DataSource = ds;
DDL.DataBind();
DDL.Items.Insert(0, new ListItem("--Select--", "0"));
}
DataRowView drv = (DataRowView)e.Row.DataItem;
DDL.SelectedValue = drv["cid"].ToString();
RBL.SelectedValue = drv["gender"].ToString();
string[] arr = drv["hobbies"].ToString().Split(',');
CBL.ClearSelection();
for (int i = 0; i < CBL.Items.Count; i++)
{
for (int j = 0; j < arr.Length; j++)
{
if (CBL.Items[i].Text == arr[j])
{
CBL.Items[i].Selected = true;
break;
}
}
}
CBIA.Checked = drv["isactive"].ToString() == "1" ? true : false;
ViewState["IMG"] = drv["image"].ToString();
}
}
}
protected void grd_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
TextBox TBN = (TextBox)grd.Rows[e.RowIndex].FindControl("txteditname");
DropDownList DDLC = (DropDownList)grd.Rows[e.RowIndex].FindControl("ddleditcountry");
TextBox TBD = (TextBox)grd.Rows[e.RowIndex].FindControl("txteditdob");
RadioButtonList RBLG = (RadioButtonList)grd.Rows[e.RowIndex].FindControl("rbleditgender");
FileUpload FUI = (FileUpload)grd.Rows[e.RowIndex].FindControl("fueditimages");
CheckBoxList CBLH = (CheckBoxList)grd.Rows[e.RowIndex].FindControl("chkedithobbies");
CheckBox CBI = (CheckBox)grd.Rows[e.RowIndex].FindControl("chkeditisactive");
string IDD = grd.DataKeys[e.RowIndex].Value.ToString();
string FN = "";
string HOB = "";
for (int i = 0; i < CBLH.Items.Count; i++)
{
if (CBLH.Items[i].Selected == true)
{
HOB += CBLH.Items[i].Text + ",";
}
}
HOB = HOB.TrimEnd(',');
FN = Path.GetFileName(FUI.PostedFile.FileName);
con.Open();
SqlCommand cmd = new SqlCommand("usp_emp_update", con);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddWithValue("@id", IDD);
cmd.Parameters.AddWithValue("@name", TBN.Text);
cmd.Parameters.AddWithValue("@cid", DDLC.SelectedValue);
cmd.Parameters.AddWithValue("@dob", TBD.Text);
cmd.Parameters.AddWithValue("@gender", RBLG.SelectedValue);
if (FN != "")
{
FN = DateTime.Now.Ticks.ToString() + FN;
cmd.Parameters.AddWithValue("@image", FN);
FUI.SaveAs(Server.MapPath("Employee" + "\" + FN));
File.Delete(Server.MapPath("Employee" + "\" + ViewState["IMG"]));
}
else
{
cmd.Parameters.AddWithValue("@image", ViewState["IMG"]);
}
cmd.Parameters.AddWithValue("@hobbies", HOB);
cmd.Parameters.AddWithValue("@isactive", CBI.Checked == true ? "1" : "2");
cmd.ExecuteNonQuery();
con.Close();
grd.EditIndex = -1;
Fill_Grid();
}
当我尝试序列化具有类似结构的对象时，我的 C# 程序 运行 进入 WhosebugException：
- 对象具有相互引用的成员
- 无法尝试捕获（我知道为什么）
- 如果计数设置低于 6500（可能因机器而异），则序列化成功
示例代码如下：
class Chacha
{
public Chacha NextChacha { get; set; }
}
public static readonly JsonSerializerSettings Settings = new JsonSerializerSettings
{
TypeNameHandling = TypeNameHandling.All,
PreserveReferencesHandling = PreserveReferencesHandling.Objects,
ReferenceLoopHandling = ReferenceLoopHandling.Ignore
};
static void Main(string[] args)
{
int count = 15000;
Chacha[] steps = new Chacha[count];
steps[0] = new Chacha();
for (int i = 1; i < count; i++)
{
steps[i] = new Chacha();
steps[i-1].NextChacha = steps[i];
}
string serSteps = JsonConvert.SerializeObject(steps, Settings);
}
JSON.NET 版本为：9.0.1
.NET 框架：4.5.2
任何解决方案如何序列化此结构？
欢迎任何帮助或建议。谢谢
你得到 Whosebug 异常的原因是 Json.NET 是一个递归的，single-pass 树或图形序列化器，当 PreserveReferencesHandling.Objects 启用时，总是序列化 first 每个对象出现。您已经构建了包含 15,000 个元素的 Chacha [] 数组，因此第一个条目是包含顺序链接的所有其他项目的链表的头部。 Json.NET 将尝试通过 15,000 层递归将其序列化为 15,000 层深的嵌套 JSON 对象，并在此过程中溢出堆栈。
因此，您需要做的是仅将整个 table 链接写入列表的 head，作为 JSON 数组。然而，不幸的是，Json.NET 也是一个 contract-based 序列化程序，这意味着无论嵌套深度是多少，它都会在遇到给定类型的对象时尝试编写相同的属性。因此，将 Chacha[] NextChachaList 属性 添加到 Chacha 对象并没有帮助，因为它会在每个级别上写入。相反，有必要创建一个相当复杂的 custom JsonConverter 以 thread-safe 方式跟踪序列化深度，并且仅在顶层写入链接列表。以下是诀窍：
class ChachaConverter : LinkedListItemConverter<Chacha>
{
protected override bool IsNextItemProperty(JsonProperty member)
{
return member.UnderlyingName == "NextChacha"; // Use nameof(Chacha.NextChacha) in latest c#
}
}
public abstract class LinkedListItemConverter<T> : JsonConverter where T : class
{
const string refProperty = "$ref";
const string idProperty = "$id";
const string NextItemListProperty = "nextItemList";
[ThreadStatic]
static int level;
// Increments the nesting level in a thread-safe manner.
int Level { get { return level; } set { level = value; } }
public override bool CanConvert(Type objectType)
{
return typeof(T).IsAssignableFrom(objectType);
}
protected abstract bool IsNextItemProperty(JsonProperty member);
List<T> GetNextItemList(object value, JsonObjectContract contract)
{
var property = contract.Properties.Where(p => IsNextItemProperty(p)).Single();
List<T> list = null;
for (var item = (T)property.ValueProvider.GetValue(value); item != null; item = (T)property.ValueProvider.GetValue(item))
{
if (list == null)
list = new List<T>();
list.Add(item);
}
return list;
}
void SetNextItemLinks(object value, List<T> list, JsonObjectContract contract)
{
var property = contract.Properties.Where(p => IsNextItemProperty(p)).Single();
if (list == null || list.Count == 0)
return;
var previous = value;
foreach (var next in list)
{
if (next == null)
continue;
property.ValueProvider.SetValue(previous, next);
previous = next;
}
}
public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
{
using (new PushValue<int>(Level + 1, () => Level, (old) => Level = old))
{
writer.WriteStartObject();
if (serializer.ReferenceResolver.IsReferenced(serializer, value))
{
writer.WritePropertyName(refProperty);
writer.WriteValue(serializer.ReferenceResolver.GetReference(serializer, value));
}
else
{
writer.WritePropertyName(idProperty);
writer.WriteValue(serializer.ReferenceResolver.GetReference(serializer, value));
var contract = (JsonObjectContract)serializer.ContractResolver.ResolveContract(value.GetType());
// Write the data properties (if any).
foreach (var property in contract.Properties
.Where(p => p.Readable && !p.Ignored && (p.ShouldSerialize == null || p.ShouldSerialize(value))))
{
if (IsNextItemProperty(property))
continue;
var propertyValue = property.ValueProvider.GetValue(value);
if (propertyValue == null && serializer.NullValueHandling == NullValueHandling.Ignore)
continue;
writer.WritePropertyName(property.PropertyName);
serializer.Serialize(writer, propertyValue);
}
if (Level == 1)
{
// Write the NextItemList ONLY AT THE TOP LEVEL
var nextItems = GetNextItemList(value, contract);
if (nextItems != null)
{
writer.WritePropertyName(NextItemListProperty);
serializer.Serialize(writer, nextItems);
}
}
}
writer.WriteEndObject();
}
}
public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
{
if (reader.TokenType == JsonToken.Null)
return null;
var jObject = JObject.Load(reader);
// Detach and process $ref
var refValue = (string)jObject[refProperty].RemoveFromLowestPossibleParent();
if (refValue != null)
{
var reference = serializer.ReferenceResolver.ResolveReference(serializer, refValue);
if (reference != null)
return reference;
}
// Construct the value
var contract = (JsonObjectContract)serializer.ContractResolver.ResolveContract(existingValue == null ? typeof(T) : existingValue.GetType());
T value = (existingValue as T ?? (T)contract.DefaultCreator());
// Detach and process $id
var idValue = (string)jObject[idProperty].RemoveFromLowestPossibleParent();
if (idValue != null)
{
serializer.ReferenceResolver.AddReference(serializer, idValue, value);
}
// Detach the (possibly large) list of next items.
var nextItemList = jObject[NextItemListProperty].RemoveFromLowestPossibleParent();
// populate the data properties (if any)
serializer.Populate(jObject.CreateReader(), value);
// Set the next item references
if (nextItemList != null)
{
var list = nextItemList.ToObject<List<T>>(serializer);
SetNextItemLinks(value, list, contract);
}
return value;
}
}
public struct PushValue<T> : IDisposable
{
Action<T> setValue;
T oldValue;
public PushValue(T value, Func<T> getValue, Action<T> setValue)
{
if (getValue == null || setValue == null)
throw new ArgumentNullException();
this.setValue = setValue;
this.oldValue = getValue();
setValue(value);
}
#region IDisposable Members
// By using a disposable struct we avoid the overhead of allocating and freeing an instance of a finalizable class.
public void Dispose()
{
if (setValue != null)
setValue(oldValue);
}
#endregion
}
public static class JsonExtensions
{
public static JToken RemoveFromLowestPossibleParent(this JToken node)
{
if (node == null)
return null;
var contained = node.AncestorsAndSelf().Where(t => t.Parent is JContainer && t.Parent.Type != JTokenType.Property).FirstOrDefault();
if (contained != null)
contained.Remove();
// Also detach the node from its immediate containing property -- Remove() does not do this even though it seems like it should
if (node.Parent is JProperty)
((JProperty)node.Parent).Value = null;
return node;
}
}
然后，给出稍微修改的class Chacha:
class Chacha
{
public Chacha NextChacha { get; set; }
public long Data { get; set; }
}
为包含 3 个项目的数组生成以下 JSON：
{
"$type": "Question41828014.Chacha[], Tile",
"$values": [
{
"$id": "1",
"Data": 0,
"nextItemList": {
"$type": "System.Collections.Generic.List`1[[Question41828014.Chacha, Tile]], mscorlib",
"$values": [
{
"$id": "2",
"Data": 1
},
{
"$id": "3",
"Data": 2
}
]
}
},
{
"$ref": "2"
},
{
"$ref": "3"
}
]
}
请注意，JSON 深度现在受到严格限制。示例 fiddle。
请注意，一旦您为您的类型指定了自定义转换器，它就需要手动执行所有操作。如果您的类型 Chacha 是多态的并且您需要读写 "$type" 属性，则您需要自己将该逻辑添加到转换器中。
顺便说一句，我推荐TypeNameHandling.Objects而不是TypeNameHandling.All。可以在 JSON 中合理指定对象类型（只要类型正确 List<T>，而无需后读遗留 JSON 文件。
public class Model
{
public int Id { get; set; }
public string Name { get; set; }
public string SurName { get; set; }
}
List<Model> list = new List<Model>();
list.Add(new Model { Id = 1, Name = "Jon", SurName = "Snow"});
var stringJson = JsonConvert.SerializeObject(list, new JsonSerializerSettings
{
PreserveReferencesHandling = PreserveReferencesHandling.Objects
});
MVC 与 Jquery:
通过控制台 nuget 包安装 newtonsoft 包： 安装包 Newtonsoft.json - 版本 6.0.1
控制器：
[HttpPost]
public ActionResult Get_Country()
{
string _data = "";
SqlCommand cmd = new SqlCommand("Get_Country", con);
cmd.CommandType = CommandType.StoredProcedure;
SqlDataAdapter da = new SqlDataAdapter(cmd);
DataSet ds = new DataSet();
da.Fill(ds);
if (ds.Tables[0].Rows.Count > 0)
{
_data = JsonConvert.SerializeObject(ds.Tables[0]);
}
return Json(_data, JsonRequestBehavior.AllowGet);
}
[HttpPost]
public ActionResult Insert(string A,string B,string C,string D)
{
con.Open();
SqlCommand cmd = new SqlCommand("Insert_Employee", con);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddWithValue("@Name", A);
cmd.Parameters.AddWithValue("@CID", B);
cmd.Parameters.AddWithValue("@Gender", C);
cmd.Parameters.AddWithValue("@Hobbies", D);
int count = cmd.ExecuteNonQuery();
con.Close();
return View();
}
[HttpPost]
public ActionResult Get_Employees()
{
string _data = "";
SqlCommand cmd = new SqlCommand("Get_Employees", con);
cmd.CommandType = CommandType.StoredProcedure;
SqlDataAdapter da = new SqlDataAdapter(cmd);
DataSet ds = new DataSet();
da.Fill(ds);
if (ds.Tables[0].Rows.Count > 0)
{
_data = JsonConvert.SerializeObject(ds.Tables[0]);
}
return Json(_data, JsonRequestBehavior.AllowGet);
}
[HttpPost]
public ActionResult EditData(int A)
{
string _data = "";
SqlCommand cmd = new SqlCommand("Get_Employees_Edit", con);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddWithValue("@ID", A);
SqlDataAdapter da = new SqlDataAdapter(cmd);
DataSet ds = new DataSet();
da.Fill(ds);
if (ds.Tables[0].Rows.Count > 0)
{
_data = JsonConvert.SerializeObject(ds.Tables[0]);
}
return Json(_data, JsonRequestBehavior.AllowGet);
}
查看：
脚本：
<script type="text/javascript">
var IDD = "";
$(document).ready(function () {
Get_Country();
GetEmployees();
});
function Get_Country() {
$.ajax({
url: 'Employee/Get_Country',
type: 'post',
data: {},
success: function (_dt) {
_dt = JSON.parse(_dt);
for (var i = 0; i < _dt.length; i++) {
$('#ddlCountry').append($('<option/>').attr('value',_dt[i].CID).text(_dt[i].CName));
}
},
error: function () {
alert('Error in Country Bind');
}
})
}
function SaveData() {
debugger
var HOB = "";
if ($("#btnsave").val() == ("Save")) {
HOB = $('input:checkbox:checked.B').map(function () {
return this.value;
}).get().join(',');
$.ajax({
url: 'Employee/Insert',
type: 'post',
data: { A: $('#txtName').val(), B: $('#ddlCountry').val(), C: $('input:radio[name=A]:checked').val(), D: HOB },
success: function () {
alert('data saved');
GetEmployees();
},
error: function () {
alert('saved error');
}
});
}
}
function GetEmployees() {
debugger
$.ajax({
url: 'Employee/Get_Employees',
type: 'post',
data: {},
async: false,
success: function (_dt) {
_dt = JSON.parse(_dt);
$('#tbl').find("tr:gt(0)").remove();
for (var i = 0; i < _dt.length; i++) {
$('#tbl').append('<tr><td>' + _dt[i].ID + '</td><td>' + _dt[i].Name + '</td><td>' + _dt[i].CName + '</td><td>' + (_dt[i].Gender == 1 ? 'Male' : _dt[i].Gender == 2 ? 'Female' : 'Others') + '</td><td>' + _dt[i].Hobbies + '</td><td><input id="btnEdit" type="button" value="Edit" onclick="EditData(' + _dt[i].ID + ')"/></td><td><input id="btnDelete" type="button" value="Delete" onclick="DeleteData(' + _dt[i].ID + ')"/></td></tr>')
}
},
error: function () {
alert('error in binding');
}
});
}
function EditData(id) {
debugger;
$.ajax({
url: 'Employee/EditData',
type: 'post',
data: { A: id },
success: function (_dt) {
_dt = JSON.parse(_dt);
debugger;
$("#txtName").val(_dt[0].Name);
$("#ddlCountry").val(_dt[0].CID);
$("input[name=A][value=" + _dt[0].Gender + "]").prop('checked', true);
var hbb = _dt[0].Hobbies;
var arr = hbb.split(',');
$('input:checkbox:checked.B').prop('checked', false);
for (var i = 0; i < arr.length; i++) {
$('input:checkbox[class=B][value=' + arr[i] + ']').prop('checked', true);
}
$("#btnsave").val("Update");
IDD = id;
},
error: function () {
alert('edit error !!');
}
});
}
正文：
<table>
<tr>
<td>Name :</td>
<td>
<input id="txtName" type="text" />
</td>
</tr>
<tr>
<td>Country :</td>
<td>
<select id="ddlCountry">
<option value="0"><--Select--></option>
</select>
</td>
</tr>
<tr>
<td>Gender :</td>
<td>
<input type="radio" name="A" value="1" />Male
<input type="radio" name="A" value="2" />Female
<input type="radio" name="A" value="3" />Others
</td>
</tr>
<tr>
<td>Hobbies :</td>
<td>
<input type="checkbox" class="B" value="Cricket" />Cricket
<input type="checkbox" class="B" value="Coding" />Coding
<input type="checkbox" class="B" value="Travelling" />Travelling
<input type="checkbox" class="B" value="Swimming" />Swimming
<input type="checkbox" class="B" value="Movies" />Movies
<input type="checkbox" class="B" value="Typing" />Typing
</td>
</tr>
<tr>
<td></td>
<td>
<input type="button" id="btnsave" value="Save" onclick="SaveData()" />
</td>
</tr>
</table>
<table id="tbl" border="1">
<tr>
<td>ID</td>
<td>Name</td>
<td>Country</td>
<td>Gender</td>
<td>Hobbies</td>
<td>Edit</td>
<td>Delete</td>
</tr>
</table>
Jquery cs code:
```csharp
SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings["DBCS"].ConnectionString);
[WebMethod]
public string GetCountry()
{
string _data = "";
con.Open();
SqlCommand cmd = new SqlCommand("usp_country_get",con);
cmd.CommandType = CommandType.StoredProcedure;
SqlDataAdapter da = new SqlDataAdapter(cmd);
DataSet ds = new DataSet();
da.Fill(ds);
con.Close();
if (ds.Tables[0].Rows.Count > 0)
{
_data = JsonConvert.SerializeObject(ds.Tables[0]);
}
return _data;
}
[WebMethod]
public void Insert(string A, int B, int C, string D)
{
con.Open();
SqlCommand cmd = new SqlCommand("usp_emp_insert", con);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddWithValue("@name", A);
cmd.Parameters.AddWithValue("@cid", B);
cmd.Parameters.AddWithValue("@gender", C);
cmd.Parameters.AddWithValue("@hobbies", D);
cmd.ExecuteNonQuery();
con.Close();
}
[WebMethod]
public void Delete(int ID)
{
con.Open();
SqlCommand cmd = new SqlCommand("usp_emp_delete", con);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddWithValue("@id", ID);
cmd.ExecuteNonQuery();
con.Close();
}
[WebMethod]
public string Edit(int ID)
{
string _data = "";
con.Open();
SqlCommand cmd = new SqlCommand("usp_emp_edit", con);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddWithValue("@id", ID);
SqlDataAdapter da = new SqlDataAdapter(cmd);
DataSet ds = new DataSet();
da.Fill(ds);
con.Close();
if (ds.Tables[0].Rows.Count > 0)
{
_data = JsonConvert.SerializeObject(ds.Tables[0]);
}
return _data;
}
[WebMethod]
public void Update(int ID, string A, int B, int C, string D)
{
con.Open();
SqlCommand cmd = new SqlCommand("usp_emp_update", con);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddWithValue("@id", ID);
cmd.Parameters.AddWithValue("@name", A);
cmd.Parameters.AddWithValue("@cid", B);
cmd.Parameters.AddWithValue("@gender", C);
cmd.Parameters.AddWithValue("@hobbies", D);
cmd.ExecuteNonQuery();
con.Close();
}
[WebMethod]
public string GetEmployee()
{
string _data = "";
con.Open();
SqlCommand cmd = new SqlCommand("usp_emp_get", con);
cmd.CommandType = CommandType.StoredProcedure;
SqlDataAdapter da = new SqlDataAdapter(cmd);
DataSet ds = new DataSet();
da.Fill(ds);
con.Close();
if (ds.Tables[0].Rows.Count > 0)
{
_data = JsonConvert.SerializeObject(ds.Tables[0]);
}
else
{
_data = JsonConvert.SerializeObject(ds.Tables[0]);
}
return _data;
}
```
aspx code:
Scripting :
```html
<script src="jquery-3.2.1.js"></script>
<script type="text/javascript">
var IDD = "";
$(document).ready(function () {
CountryBind();
//EmployeeBind();
});
function CountryBind() {
$.ajax({
url:'Employee.asmx/GetCountry',
type:'post',
contentType:'application/json;charset=utf-8',
dataType:'json',
data:'{}',
async: false,
success: function (_dt) {
_dt = JSON.parse(_dt.d);
for (var i = 0; i < _dt.length; i++) {
$("#ddlcountry").append($('<option/>').attr("value", _dt[i].cid).text(_dt[i].cname));
}
},
error: function () {
alert('CountryBind error');
}
});
}
function SaveData() {
var HOB = "";
HOB = $('input:checkbox:checked.B').map(function () {
return this.value;
}).get().join(',');
if ($("#btnsave").val()==("Save")) {
$.ajax({
url: 'Employee.asmx/Insert',
type: 'post',
contentType: 'application/json;charset=utf-8',
dataType: 'json',
data: "{A:'" + $("#txtname").val() + "',B:'" + $("#ddlcountry").val() + "',C:'" + $('input:radio[name=A]:checked').val() + "',D:'" + HOB + "'}",
success: function () {
alert('insert success !!');
EmployeeBind();
},
error: function () {
alert('insert error !!');
}
});
}
else {
$.ajax({
url: 'Employee.asmx/Update',
type: 'post',
contentType: 'application/json;charset=utf-8',
dataType: 'json',
data: "{ID:" + IDD + ",A:'" + $("#txtname").val() + "',B:'" + $("#ddlcountry").val() + "',C:'" + $('input:radio[name=A]:checked').val() + "',D:'" + HOB + "'}",
success: function () {
alert('Update Successfully');
EmployeeBind();
},
error: function () {
alert('Update error');
}
});
}
}
function EmployeeBind() {
$.ajax({
url: 'Employee.asmx/GetEmployee',
type: 'post',
contentType: 'application/json;charset=utf-8',
dataType: 'json',
data: "{}",
async: false,
success: function (_dt) {
_dt = JSON.parse(_dt.d);
$("#tbl").find("tr:gt(0)").remove();
for (var i = 0; i < _dt.length; i++) {
$("#tbl").append('<tr><td>' + _dt[i].name + '</td><td>' + _dt[i].cname + '</td><td>' + (_dt[i].gender == "1" ? "Male" : _dt[i].gender == "2" ? "FeMale" : "Others") + '</td><td>' + _dt[i].hobbies + '</td><td><input type="button" id="btnedit" value="Edit" onclick="EditData(' + _dt[i].id + ')" /><td><input type="button" id="btndelete" value="Delete" onclick="DeleteData(' + _dt[i].id + ')" /></td</tr>');
}
},
error: function () {
alert('EmployeeBind error');
}
});
}
function DeleteData(id) {
$.ajax({
url: 'Employee.asmx/Delete',
type: 'post',
contentType: 'application/json;charset=utf-8',
dataType: 'json',
data: "{ID:'" + id + "'}",
success: function () {
alert('Delete Successfully');
EmployeeBind();
},
error: function () {
alert('DeleteData error');
}
});
}
function EditData(id) {
$.ajax({
url: 'Employee.asmx/Edit',
type: 'post',
contentType: 'application/json;charset=utf-8',
dataType: 'json',
async:false,
data: "{ID:'" + id + "'}",
success: function (_dt) {
_dt = JSON.parse(_dt.d);
$("#txtname").val(_dt[0].name);
$("#ddlcountry").val(_dt[0].cid);
$("input[name=A][value=" + _dt[0].gender + "]").prop('checked', true);
var hbb = _dt[0].hobbies;
var arr = hbb.split(',');
$("input:checkbox:checked.B").prop('checked', false);
for (var i = 0; i < arr.length; i++) {
$("input:checkbox[class=B][value=" + arr[i] + ']').prop('checked', true);
}
$("#btnsave").val("Update");
IDD = id;
EmployeeBind();
},
error: function () {
alert('EditData error');
}
});
}
</script>
```
Body:
```html
<body>
<table>
<tr>
<td>Name :</td>
<td><input type="text" id="txtname" /></td>
</tr>
<tr>
<td>Country :</td>
<td><select id="ddlcountry">
<option value="0">--Select--</option>
</select>
</td>
</tr>
<tr>
<td>Gender :</td>
<td>
<input type="radio" name="A" value="1" /> male
<input type="radio" name="A" value="2" /> female
<input type="radio" name="A" value="3" /> other
</td>
</tr>
<tr>
<td>Hobbies :</td>
<td>
<input type="checkbox" class="B" value="cricket" /> cricket
<input type="checkbox" class="B" value="music" /> music
<input type="checkbox" class="B" value="movies" /> movies
<input type="checkbox" class="B" value="cooking" /> cooking
<input type="checkbox" class="B" value="coding" /> coding
</td>
</tr>
<tr>
<td></td>
<td><input type="button" id="btnsave" value="Save" onclick="SaveData()" /></td>
</tr>
</table>
<table id="tbl" border="1" style="border-color:darkblue;width:100%">
<tr>
<th>Name</th>
<th>Country</th>
<th>Gender</th>
<th>Hobbies</th>
<th>Edit</th>
<th>Delete</th>
</tr>
</table>
</body>
```
Asp.net Gridview 外部：
ASPX:
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Employee.aspx.cs" Inherits="Asp_outside_gridview.Employee" %>
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="ajax" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<script type="text/javascript">
function Validation() {
var errors = "";
errors += checkname();
errors += dob();
errors += email();
errors += password();
errors += cpassword();
errors += mobile();
errors += salary();
errors += country();
errors += state();
errors += city();
if (errors != "") {
alert(errors);
return false;
}
}
function checkname() {
var TBN=document.getElementById('txtname');
var exp = "/^[a-zA-Z ]{2,30}$/";
if (TBN.value="") {
return 'please enter your NAME!\n'
}
else if (exp.test(TBN.value)) {
return "";
}
else {
'plese enter only alphabets in NAME!\n';
}
}
function dob() {
var TBdob = document.getElementById('txtdob');
if (TBdob.value = "") {
return 'please enter your DATE OF BIRTH!\n'
}
else {
return "";
}
}
function email() {
var TBemail = document.getElementById('txtemail');
var exp = "/^(([^<>()[\]\.,;:\s@\"]+(\.[^<>()[\]\.,;:\s@\"]+)*)|(\".+\"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/";
if (TBemail.value = "") {
return 'please enter your EMAIL ID!\n'
}
else if (exp.test(TBemail.value)) {
return "";
}
else {
'plese enter valid email id!\n';
}
}
function password() {
var TBpassword = document.getElementById('txtpassword');
var exp = "/^(?=.*[a-z])(?=.*[A-Z])(?=.*\d)(?=.*[$@$!%*?&])[A-Za-z\d$@$!%*?&]{8,10}$/";
if (TBpassword.value = "") {
return 'please enter your PASSWORD!\n'
}
else if (exp.test(TBpassword.value)) {
return "";
}
else {
'password should be of Minimum eight and maximum 10 characters, at least one uppercase letter, one lowercase letter, one number and one special character!\n';
}
}
function cpassword() {
var TBpassword = document.getElementById('txtpassword');
var TBcpassword = document.getElementById('txtcpassword');
if (TBcpassword.value = "") {
return 'please enter your CONFIRM PASSWORD!\n'
}
else if (TBpassword.value== TBcpassword.value) {
return "";
}
else {
'password do not match!\n';
}
}
function mobile() {
var TBmobile = document.getElementById('txtmobile');
var exp = /^\d{10}$/;
if (TBmobile.value = "") {
return 'please enter your MOBILE NUMBER!\n'
}
else if (exp.test(TBmobile.value)) {
return "";
}
else {
'plese enter only valid MOBILE NUMBER!\n';
}
}
function salary() {
var TBsalary = document.getElementById('txtsalary');
var exp = /^\d{10}$/;
if (TBsalary.value = "") {
return 'please enter your SALARY!\n'
}
else if (exp.test(TBsalary.value)) {
return "";
}
else {
'plese enter only numbers in SALARY!\n';
}
}
function country() {
var TBcountry = document.getElementById('ddlcountry');
if (TBcountry.value = "0") {
return 'please Select your Country!\n'
}
else {
return "";
}
}
function state() {
var TBstate = document.getElementById('ddlstate');
if (TBstate.value = "0") {
return 'please Select your State!\n'
}
else {
return "";
}
}
function city() {
var TBcity = document.getElementById('ddlcity');
if (TBcity.value = "0") {
return 'please Select your City!\n'
}
else {
return "";
}
}
</script>
<title></title>
</head>
<body>
<form id="form1" runat="server">
<ajax:ToolkitScriptManager ID="ajaxcal" runat="server"></ajax:ToolkitScriptManager>
<div>
<table>
<tr>
<td>Name :</td>
<td><asp:TextBox ID="txtname" runat="server" /></td>
</tr>
<tr>
<td>Country :</td>
<td><asp:DropDownList ID="ddlcountry" AutoPostBack="true" runat="server" OnSelectedIndexChanged="ddlcountry_SelectedIndexChanged"></asp:DropDownList></td>
</tr>
<tr>
<td>State :</td>
<td><asp:DropDownList ID="ddlstate" runat="server" AutoPostBack="true"></asp:DropDownList></td>
</tr>
<tr>
<td>Date of Birth :</td>
<td><asp:TextBox ID="txtdob" runat="server" />
<ajax:CalendarExtender ID="caldob" runat="server" Format="dd/MM/yyyy" PopupButtonID="txtdob" TargetControlID="txtdob" PopupPosition="Right"></ajax:CalendarExtender></td>
</tr>
<tr>
<td>Gender :</td>
<td>
<asp:RadioButtonList ID="rblgender" runat="server" RepeatColumns="3">
<asp:ListItem Text="Male" Value="1"/>
<asp:ListItem Text="Female" Value="2" />
<asp:ListItem Text="Others" Value="3" />
</asp:RadioButtonList></td>
</tr>
<tr>
<td>Image :</td>
<td><asp:FileUpload ID="fuimage" runat="server" /><asp:Label ID="lblmsg" runat="server" ForeColor="Red" Font-Bold="true"></asp:Label></td>
</tr>
<tr>
<td>Hobbies :</td>
<td>
<asp:CheckBoxList ID="chkhobbies" runat="server" RepeatColumns="5">
<asp:ListItem Text="Cricket"></asp:ListItem>
<asp:ListItem Text="Football" ></asp:ListItem>
<asp:ListItem Text="Coding" ></asp:ListItem>
<asp:ListItem Text="Reading" ></asp:ListItem>
<asp:ListItem Text="Travelling" ></asp:ListItem>
<asp:ListItem Text="Gym" ></asp:ListItem>
<asp:ListItem Text="Singing" ></asp:ListItem>
<asp:ListItem Text="Dancing" ></asp:ListItem>
<asp:ListItem Text="Music" ></asp:ListItem>
<asp:ListItem Text="Movies" ></asp:ListItem>
<asp:ListItem Text="Cooking" ></asp:ListItem>
</asp:CheckBoxList></td>
</tr>
<tr>
<td>IsActive :</td>
<td><asp:CheckBox ID="chkisactive" runat="server" /></td>
</tr>
<tr>
<td></td>
<td><asp:Button ID="btnsave" Text="Save" runat="server" OnClick="btnsave_Click" /></td>
</tr>
<tr>
<td></td>
<td>
<asp:GridView ID="grd" runat="server" AutoGenerateColumns="false" OnRowCommand="grd_RowCommand">
<Columns>
<asp:TemplateField HeaderText="ID">
<ItemTemplate>
<%#Eval("id") %>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Name">
<ItemTemplate>
<%#Eval("name") %>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="country">
<ItemTemplate>
<%#Eval("cname") %>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="state">
<ItemTemplate>
<%#Eval("sname") %>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Date of Birth">
<ItemTemplate>
<%#Eval("dob") %>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Gender">
<ItemTemplate>
<%#Eval("gender").ToString() == "1" ? "Male" : Eval("gender").ToString() == "2" ? "Female" :"Others" %>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Images">
<ItemTemplate>
<asp:Image ID="img" runat="server" Width="50px" Height="40px" ImageUrl='<%#Eval("image","~/Employee/{0}") %>' />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Hobbies">
<ItemTemplate>
<%#Eval("hobbies") %>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Status">
<ItemTemplate>
<%#Eval("isactive").ToString() == "1" ? "Active" : "Inactive" %>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Delete">
<ItemTemplate>
<asp:LinkButton ID="lnkbtndelete" runat="server" Text="Delete" CommandName="DLT" CommandArgument='<%#Eval("id") %>'></asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Edit">
<ItemTemplate>
<asp:LinkButton ID="lnkbtnedit" runat="server" Text="Edit" CommandName="EDT" CommandArgument='<%#Eval("id") %>'></asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
</td>
</tr>
</table>
</div>
</form>
</body>
</html>
C#:
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
Fill_Country();
ddlstate.Items.Insert(0, new ListItem("--Select--", "0"));
Fill_Grid();
}
}
public void Fill_Country()
{
con.Open();
SqlCommand cmd = new SqlCommand("usp_country_get", con);
cmd.CommandType = CommandType.StoredProcedure;
SqlDataAdapter da = new SqlDataAdapter(cmd);
DataSet ds = new DataSet();
da.Fill(ds);
con.Close();
if (ds.Tables[0].Rows.Count > 0)
{
ddlcountry.DataValueField = "cid";
ddlcountry.DataTextField = "cname";
ddlcountry.DataSource = ds;
ddlcountry.DataBind();
ddlcountry.Items.Insert(0, new ListItem("--Select--", "0"));
}
}
public void Fill_State(string cid)
{
con.Open();
SqlCommand cmd = new SqlCommand("usp_state_get", con);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddWithValue("@cid", cid);
SqlDataAdapter da = new SqlDataAdapter(cmd);
DataSet ds = new DataSet();
da.Fill(ds);
con.Close();
if (ds.Tables[0].Rows.Count > 0)
{
ddlstate.DataValueField = "sid";
ddlstate.DataTextField = "sname";
ddlstate.DataSource = ds;
ddlstate.DataBind();
ddlstate.Items.Insert(0, new ListItem("--Select--", "0"));
}
}
public void Fill_Grid()
{
con.Open();
SqlCommand cmd = new SqlCommand("usp_emp_get", con);
cmd.CommandType = CommandType.StoredProcedure;
SqlDataAdapter da = new SqlDataAdapter(cmd);
DataSet ds = new DataSet();
da.Fill(ds);
con.Close();
if (ds.Tables[0].Rows.Count > 0)
{
grd.DataSource = ds;
grd.DataBind();
}
else
{
grd.DataSource = null;
grd.DataBind();
}
}
protected void ddlcountry_SelectedIndexChanged(object sender, EventArgs e)
{
Fill_State(ddlcountry.SelectedValue);
}
protected void btnsave_Click(object sender, EventArgs e)
{
if (btnsave.Text == "Save")
{
string HOB = "";
string FN = "";
string Ext = "";
Ext = Path.GetExtension(fuimage.PostedFile.FileName);
if (Ext.ToLower() == ".jpg" || Ext.ToLower() == ".jpeg" || Ext.ToLower() == ".png")
{
for (int i = 0; i < chkhobbies.Items.Count; i++)
{
if (chkhobbies.Items[i].Selected == true)
{
HOB += chkhobbies.Items[i].Text + ",";
}
}
HOB = HOB.TrimEnd(',');
FN = DateTime.Now.Ticks.ToString() + Path.GetFileName(fuimage.PostedFile.FileName);
fuimage.SaveAs(Server.MapPath("Employee" + "\" + FN));
con.Open();
SqlCommand cmd = new SqlCommand("usp_emp_insert", con);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddWithValue("@name", txtname.Text);
cmd.Parameters.AddWithValue("@cid", ddlcountry.SelectedValue);
cmd.Parameters.AddWithValue("@sid", ddlstate.SelectedValue);
cmd.Parameters.AddWithValue("@dob", txtdob.Text);
cmd.Parameters.AddWithValue("@gender", rblgender.SelectedValue);
cmd.Parameters.AddWithValue("@image", FN);
cmd.Parameters.AddWithValue("@hobbies", HOB);
cmd.Parameters.AddWithValue("@isactive", chkisactive.Checked == true ? 1 : 0);
cmd.ExecuteNonQuery();
con.Close();
}
else
{
lblmsg.Text = "please upload only image file !!";
}
}
else
{
string HOB = "";
string FN = "";
string Ext = "";
Ext = Path.GetExtension(fuimage.PostedFile.FileName);
if (Ext.ToLower() == ".jpg" || Ext.ToLower() == ".jpeg" || Ext.ToLower() == ".png")
{
for (int i = 0; i < chkhobbies.Items.Count; i++)
{
if (chkhobbies.Items[i].Selected == true)
{
HOB += chkhobbies.Items[i].Text + ",";
}
}
HOB = HOB.TrimEnd(',');
FN = DateTime.Now.Ticks.ToString() + Path.GetFileName(fuimage.PostedFile.FileName);
fuimage.SaveAs(Server.MapPath("Employee" + "\" + FN));
File.Delete(Server.MapPath("Employee" + "\" + ViewState["IMG"]));
con.Open();
SqlCommand cmd = new SqlCommand("usp_emp_update", con);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddWithValue("@id", ViewState["ID"]);
cmd.Parameters.AddWithValue("@name", txtname.Text);
cmd.Parameters.AddWithValue("@cid", ddlcountry.SelectedValue);
cmd.Parameters.AddWithValue("@sid", ddlstate.SelectedValue);
cmd.Parameters.AddWithValue("@dob", txtdob.Text);
cmd.Parameters.AddWithValue("@gender", rblgender.SelectedValue);
cmd.Parameters.AddWithValue("@image", FN);
cmd.Parameters.AddWithValue("@hobbies", HOB);
cmd.Parameters.AddWithValue("@isactive", chkisactive.Checked == true ? 1 : 0);
cmd.ExecuteNonQuery();
con.Close();
}
else
{
lblmsg.Text = "please upload only image file !!";
}
}
Fill_Grid();
}
protected void grd_RowCommand(object sender, GridViewCommandEventArgs e)
{
if (e.CommandName=="EDT")
{
con.Open();
SqlCommand cmd = new SqlCommand("usp_emp_edit", con);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddWithValue("@id", e.CommandArgument);
SqlDataAdapter da = new SqlDataAdapter(cmd);
DataSet ds = new DataSet();
da.Fill(ds);
con.Close();
if (ds.Tables[0].Rows.Count > 0)
{
txtname.Text = ds.Tables[0].Rows[0]["name"].ToString();
ddlcountry.SelectedValue = ds.Tables[0].Rows[0]["cid"].ToString();
Fill_State(ddlcountry.SelectedValue);
ddlstate.SelectedValue = ds.Tables[0].Rows[0]["sid"].ToString();
txtdob.Text=ds.Tables[0].Rows[0]["dob"].ToString();
rblgender.SelectedValue = ds.Tables[0].Rows[0]["gender"].ToString() == "1" ? "1" : ds.Tables[0].Rows[0]["gender"].ToString() == "2" ? "2" : "3";
chkisactive.Checked = ds.Tables[0].Rows[0]["isactive"].ToString() == "1" ? true : false;
string[] arr = ds.Tables[0].Rows[0]["hobbies"].ToString().Split(',');
chkhobbies.ClearSelection();
for (int i = 0; i < chkhobbies.Items.Count; i++)
{
for (int j = 0; j < arr.Length; j++)
{
if (chkhobbies.Items[i].Text == arr[j])
{
chkhobbies.Items[i].Selected = true;
break;
}
}
}
ViewState["IMG"] = ds.Tables[0].Rows[0]["image"].ToString();
btnsave.Text = "Update";
ViewState["ID"] = e.CommandArgument;
}
}
else if(e.CommandName == "DLT")
{
con.Open();
SqlCommand cmd = new SqlCommand("usp_emp_delete", con);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddWithValue("@id", e.CommandArgument);
SqlParameter param = cmd.Parameters.Add("@image", SqlDbType.VarChar, 50);
param.Direction = ParameterDirection.Output;
cmd.ExecuteNonQuery();
con.Close();
string Old_image = cmd.Parameters["@image"].Value.ToString();
File.Delete(Server.MapPath("Employee" + "\" + Old_image));
Fill_Grid();
}
}
Asp.net Inside Gridview:
aspx:
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Employee.aspx.cs" Inherits="Asp_inside_gridview.Employee" %>
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="ajax" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<ajax:ToolkitScriptManager ID="ajaxcal" runat="server"></ajax:ToolkitScriptManager>
<div>
<table>
<tr>
<td>Name :</td>
<td><asp:TextBox ID="txtname" runat="server" /></td>
</tr>
<tr>
<td>Country :</td>
<td><asp:DropDownList ID="ddlcountry" runat="server" ></asp:DropDownList></td>
</tr>
<tr>
<td>Date of Birth :</td>
<td><asp:TextBox ID="txtdob" runat="server" />
<ajax:CalendarExtender ID="caldob" runat="server" Format="dd/MM/yyyy" PopupButtonID="txtdob" TargetControlID="txtdob" PopupPosition="BottomRight"></ajax:CalendarExtender></td>
</tr>
<tr>
<td>Gender :</td>
<td>
<asp:RadioButtonList ID="rblgender" runat="server" RepeatColumns="3">
<asp:ListItem Text="Male" Value="1"/>
<asp:ListItem Text="Female" Value="2" />
<asp:ListItem Text="Others" Value="3" />
</asp:RadioButtonList></td>
</tr>
<tr>
<td>Image :</td>
<td><asp:FileUpload ID="fuimage" runat="server" /><asp:Label ID="lblmsg" runat="server" ForeColor="Red" Font-Bold="true"></asp:Label></td>
</tr>
<tr>
<td>Hobbies :</td>
<td>
<asp:CheckBoxList ID="chkhobbies" runat="server" RepeatColumns="5">
<asp:ListItem Text="Cricket"></asp:ListItem>
<asp:ListItem Text="Football" ></asp:ListItem>
<asp:ListItem Text="Coding" ></asp:ListItem>
<asp:ListItem Text="Reading" ></asp:ListItem>
<asp:ListItem Text="Travelling" ></asp:ListItem>
<asp:ListItem Text="Gym" ></asp:ListItem>
<asp:ListItem Text="Singing" ></asp:ListItem>
<asp:ListItem Text="Dancing" ></asp:ListItem>
<asp:ListItem Text="Music" ></asp:ListItem>
<asp:ListItem Text="Movies" ></asp:ListItem>
<asp:ListItem Text="Cooking" ></asp:ListItem>
</asp:CheckBoxList></td>
</tr>
<tr>
<td>IsActive :</td>
<td><asp:CheckBox ID="chkisactive" runat="server" /></td>
</tr>
<tr>
<td></td>
<td><asp:Button ID="btnsave" Text="Save" runat="server" OnClick="btnsave_Click" /></td>
</tr>
<tr>
<td></td>
<td>
<asp:GridView ID="grd" runat="server" AutoGenerateColumns="false" DataKeyNames="id" OnRowUpdating="grd_RowUpdating" OnRowEditing="grd_RowEditing" OnRowCancelingEdit="grd_RowCancelingEdit" OnRowDeleting="grd_RowDeleting" OnRowDataBound="grd_RowDataBound" >
<Columns>
<asp:TemplateField HeaderText="ID">
<ItemTemplate>
<%#Eval("id") %>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Name">
<ItemTemplate>
<%#Eval("name") %>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="txteditname" runat="server" Text='<%#Eval("name") %>'></asp:TextBox>
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="country">
<ItemTemplate>
<%#Eval("cname") %>
</ItemTemplate>
<EditItemTemplate>
<asp:DropDownList ID="ddleditcountry" runat="server"></asp:DropDownList>
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Date of Birth">
<ItemTemplate>
<%#Eval("dob") %>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="txteditdob" runat="server" Text='<%#Eval("dob") %>' />
<ajax:CalendarExtender ID="caleditdob" runat="server" Format="dd/MM/yyyy" PopupButtonID="txteditdob" TargetControlID="txteditdob" PopupPosition="BottomRight"></ajax:CalendarExtender>
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Gender">
<ItemTemplate>
<%#Eval("gender").ToString() == "1" ? "Male" : Eval("gender").ToString() == "2" ? "Female" :"Others" %>
</ItemTemplate>
<EditItemTemplate>
<asp:RadioButtonList ID="rbleditgender" runat="server" RepeatColumns="3">
<asp:ListItem Text="Male" Value="1"/>
<asp:ListItem Text="Female" Value="2" />
<asp:ListItem Text="Others" Value="3" />
</asp:RadioButtonList>
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Images">
<ItemTemplate>
<asp:Image ID="img" runat="server" Width="100px" Height="80px" ImageUrl='<%#Eval("image","~/Employee/{0}") %>' />
</ItemTemplate>
<EditItemTemplate>
<asp:FileUpload ID="fueditimages" runat="server"></asp:FileUpload>
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Hobbies">
<ItemTemplate>
<%#Eval("hobbies") %>
</ItemTemplate>
<EditItemTemplate>
<asp:CheckBoxList ID="chkedithobbies" runat="server" RepeatColumns="3">
<asp:ListItem Text="Cricket"></asp:ListItem>
<asp:ListItem Text="Football" ></asp:ListItem>
<asp:ListItem Text="Coding" ></asp:ListItem>
<asp:ListItem Text="Reading" ></asp:ListItem>
<asp:ListItem Text="Travelling" ></asp:ListItem>
<asp:ListItem Text="Gym" ></asp:ListItem>
<asp:ListItem Text="Singing" ></asp:ListItem>
<asp:ListItem Text="Dancing" ></asp:ListItem>
<asp:ListItem Text="Music" ></asp:ListItem>
<asp:ListItem Text="Movies" ></asp:ListItem>
<asp:ListItem Text="Cooking" ></asp:ListItem>
</asp:CheckBoxList>
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Status">
<ItemTemplate>
<%#Eval("isactive").ToString() == "1" ? "Active" : "Inactive" %>
</ItemTemplate>
<EditItemTemplate>
<asp:CheckBox ID="chkeditisactive" runat="server" />
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Delete">
<ItemTemplate>
<asp:LinkButton ID="lnkbtndelete" runat="server" Text="Delete" CommandName="Delete" CommandArgument='<%#Eval("id") %>'></asp:LinkButton>
<asp:LinkButton ID="lnkbtnedit" runat="server" Text="Edit" CommandName="Edit" CommandArgument='<%#Eval("id") %>'></asp:LinkButton>
</ItemTemplate>
<EditItemTemplate>
<asp:LinkButton ID="lnkbtnupdate" runat="server" Text="Update" CommandName="Update"></asp:LinkButton>
<asp:LinkButton ID="lnkbtncancel" runat="server" Text="Cancel" CommandName="Cancel"></asp:LinkButton>
</EditItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
</td>
</tr>
</table>
</div>
</form>
</body>
</html>
cs:
protected void Page_Load(object sender, EventArgs e) { 如果（！IsPostBack） { Fill_Country(); Fill_Grid(); } }
public void Fill_Country()
{
con.Open();
SqlCommand cmd = new SqlCommand("usp_country_get", con);
cmd.CommandType = CommandType.StoredProcedure;
SqlDataAdapter da = new SqlDataAdapter(cmd);
DataSet ds = new DataSet();
da.Fill(ds);
con.Close();
if (ds.Tables[0].Rows.Count > 0)
{
ddlcountry.DataValueField = "cid";
ddlcountry.DataTextField = "cname";
ddlcountry.DataSource = ds;
ddlcountry.DataBind();
ddlcountry.Items.Insert(0, new ListItem("--Select--", "0"));
}
}
public void Fill_Grid()
{
con.Open();
SqlCommand cmd = new SqlCommand("usp_emp_get", con);
cmd.CommandType = CommandType.StoredProcedure;
SqlDataAdapter da = new SqlDataAdapter(cmd);
DataSet ds = new DataSet();
da.Fill(ds);
con.Close();
if (ds.Tables[0].Rows.Count > 0)
{
grd.DataSource = ds;
grd.DataBind();
}
else
{
grd.DataSource = null;
grd.DataBind();
}
}
protected void btnsave_Click(object sender, EventArgs e)
{
string HOB = "";
string FN = "";
string Ext = "";
Ext = Path.GetExtension(fuimage.PostedFile.FileName);
if (Ext.ToLower() == ".jpg" || Ext.ToLower() == ".jpeg" || Ext.ToLower() == ".png")
{
for (int i = 0; i < chkhobbies.Items.Count; i++)
{
if (chkhobbies.Items[i].Selected == true)
{
HOB += chkhobbies.Items[i].Text + ",";
}
}
HOB = HOB.TrimEnd(',');
FN = DateTime.Now.Ticks.ToString() + Path.GetFileName(fuimage.PostedFile.FileName);
fuimage.SaveAs(Server.MapPath("Employee" + "\" + FN));
con.Open();
SqlCommand cmd = new SqlCommand("usp_emp_insert", con);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddWithValue("@name", txtname.Text);
cmd.Parameters.AddWithValue("@cid", ddlcountry.SelectedValue);
cmd.Parameters.AddWithValue("@dob", txtdob.Text);
cmd.Parameters.AddWithValue("@gender", rblgender.SelectedValue);
cmd.Parameters.AddWithValue("@image", FN);
cmd.Parameters.AddWithValue("@hobbies", HOB);
cmd.Parameters.AddWithValue("@isactive", chkisactive.Checked == true ? 1 : 0);
cmd.ExecuteNonQuery();
con.Close();
}
else
{
lblmsg.Text = "please upload only image file !!";
}
Fill_Grid();
}
protected void grd_RowEditing(object sender, GridViewEditEventArgs e)
{
grd.EditIndex = e.NewEditIndex;
Fill_Grid();
}
protected void grd_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
{
grd.EditIndex = -1;
Fill_Grid();
}
protected void grd_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
string IDD = grd.DataKeys[e.RowIndex].Value.ToString();
con.Open();
SqlCommand cmd = new SqlCommand("usp_emp_delete", con);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddWithValue("@id", IDD);
SqlParameter param = cmd.Parameters.Add("@image", SqlDbType.VarChar, 50);
param.Direction = ParameterDirection.Output;
cmd.ExecuteNonQuery();
con.Close();
string PPP = cmd.Parameters["@image"].Value.ToString();
File.Delete(Server.MapPath("Employee" + "\" + PPP));
Fill_Grid();
}
protected void grd_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
if ((e.Row.RowState & DataControlRowState.Edit) > 0)
{
DropDownList DDL = (DropDownList)e.Row.FindControl("ddleditcountry");
CheckBoxList CBL = (CheckBoxList)e.Row.FindControl("chkedithobbies");
RadioButtonList RBL = (RadioButtonList)e.Row.FindControl("rbleditgender");
CheckBox CBIA = (CheckBox)e.Row.FindControl("chkeditisactive");
con.Open();
SqlCommand cmd = new SqlCommand("usp_country_get", con);
cmd.CommandType = CommandType.StoredProcedure;
SqlDataAdapter da = new SqlDataAdapter(cmd);
DataSet ds = new DataSet();
da.Fill(ds);
con.Close();
if (ds.Tables[0].Rows.Count > 0)
{
DDL.DataValueField = "cid";
DDL.DataTextField = "cname";
DDL.DataSource = ds;
DDL.DataBind();
DDL.Items.Insert(0, new ListItem("--Select--", "0"));
}
DataRowView drv = (DataRowView)e.Row.DataItem;
DDL.SelectedValue = drv["cid"].ToString();
RBL.SelectedValue = drv["gender"].ToString();
string[] arr = drv["hobbies"].ToString().Split(',');
CBL.ClearSelection();
for (int i = 0; i < CBL.Items.Count; i++)
{
for (int j = 0; j < arr.Length; j++)
{
if (CBL.Items[i].Text == arr[j])
{
CBL.Items[i].Selected = true;
break;
}
}
}
CBIA.Checked = drv["isactive"].ToString() == "1" ? true : false;
ViewState["IMG"] = drv["image"].ToString();
}
}
}
protected void grd_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
TextBox TBN = (TextBox)grd.Rows[e.RowIndex].FindControl("txteditname");
DropDownList DDLC = (DropDownList)grd.Rows[e.RowIndex].FindControl("ddleditcountry");
TextBox TBD = (TextBox)grd.Rows[e.RowIndex].FindControl("txteditdob");
RadioButtonList RBLG = (RadioButtonList)grd.Rows[e.RowIndex].FindControl("rbleditgender");
FileUpload FUI = (FileUpload)grd.Rows[e.RowIndex].FindControl("fueditimages");
CheckBoxList CBLH = (CheckBoxList)grd.Rows[e.RowIndex].FindControl("chkedithobbies");
CheckBox CBI = (CheckBox)grd.Rows[e.RowIndex].FindControl("chkeditisactive");
string IDD = grd.DataKeys[e.RowIndex].Value.ToString();
string FN = "";
string HOB = "";
for (int i = 0; i < CBLH.Items.Count; i++)
{
if (CBLH.Items[i].Selected == true)
{
HOB += CBLH.Items[i].Text + ",";
}
}
HOB = HOB.TrimEnd(',');
FN = Path.GetFileName(FUI.PostedFile.FileName);
con.Open();
SqlCommand cmd = new SqlCommand("usp_emp_update", con);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddWithValue("@id", IDD);
cmd.Parameters.AddWithValue("@name", TBN.Text);
cmd.Parameters.AddWithValue("@cid", DDLC.SelectedValue);
cmd.Parameters.AddWithValue("@dob", TBD.Text);
cmd.Parameters.AddWithValue("@gender", RBLG.SelectedValue);
if (FN != "")
{
FN = DateTime.Now.Ticks.ToString() + FN;
cmd.Parameters.AddWithValue("@image", FN);
FUI.SaveAs(Server.MapPath("Employee" + "\" + FN));
File.Delete(Server.MapPath("Employee" + "\" + ViewState["IMG"]));
}
else
{
cmd.Parameters.AddWithValue("@image", ViewState["IMG"]);
}
cmd.Parameters.AddWithValue("@hobbies", HOB);
cmd.Parameters.AddWithValue("@isactive", CBI.Checked == true ? "1" : "2");
cmd.ExecuteNonQuery();
con.Close();
grd.EditIndex = -1;
Fill_Grid();
}