参数字典在呈现局部视图时包含参数错误的空条目
The parameters dictionary contains a null entry for parameter error while rendering partial view
我基本上是在尝试刷新我对某些 clickEvent() 的部分视图,并且我正在为此执行 Ajax POST。我的视图如下所示:
<script type="text/javascript">
$("#employeeGrid").click(function() {
var grid = $("#employeeGrid").data("kendoGrid");
var currentSelection = grid.dataItem(grid.select());
alert(currentSelection.Id);
$.ajax({
data: JSON.stringify({ id: 1 }),
url: "/Employee/ShowEmployeeDetails",
type: "POST",
success: function (result) {
// refreshes partial view
$('#EmployeeDetails').html(result);
}
});
});
</script>
我的控制器如下所示:
[HttpPost]
public ActionResult ShowEmployeeDetails(int id)
{
List<EmployeeLOAHistory> employeeLoaHistoryList = new List<EmployeeLOAHistory>
{
new EmployeeLOAHistory
{
Id = 1,
StartDate = DateTime.Now,
EndDate = DateTime.Now
},
new EmployeeLOAHistory
{
Id = 2,
StartDate = DateTime.Now,
EndDate = DateTime.Now
}
};
此外,当我在 Firebug 中跟踪我的请求时,它还显示 id 已正确发布,看起来如下所示:
{"id":1}
然而,响应流讲述了完全不同的故事,它看起来像下面这样:
<title>The parameters dictionary contains a null entry for parameter 'id' of non-nullable type 'System.Int32' for method 'System.Web.Mvc.ActionResult ShowEmployeeDetails(Int32)'
return PartialView("_EmployeeDetails");
}
我不知道为什么会这样。有什么建议吗?
您不需要对 json 对象进行字符串化。将 ajax 选项更改为
ajax({
data: { id: 1 }, // change this
url: '@Url.Action("ShowEmployeeDetails", "Employee")', // recommended
.....
我基本上是在尝试刷新我对某些 clickEvent() 的部分视图,并且我正在为此执行 Ajax POST。我的视图如下所示:
<script type="text/javascript">
$("#employeeGrid").click(function() {
var grid = $("#employeeGrid").data("kendoGrid");
var currentSelection = grid.dataItem(grid.select());
alert(currentSelection.Id);
$.ajax({
data: JSON.stringify({ id: 1 }),
url: "/Employee/ShowEmployeeDetails",
type: "POST",
success: function (result) {
// refreshes partial view
$('#EmployeeDetails').html(result);
}
});
});
</script>
我的控制器如下所示:
[HttpPost]
public ActionResult ShowEmployeeDetails(int id)
{
List<EmployeeLOAHistory> employeeLoaHistoryList = new List<EmployeeLOAHistory>
{
new EmployeeLOAHistory
{
Id = 1,
StartDate = DateTime.Now,
EndDate = DateTime.Now
},
new EmployeeLOAHistory
{
Id = 2,
StartDate = DateTime.Now,
EndDate = DateTime.Now
}
};
此外,当我在 Firebug 中跟踪我的请求时,它还显示 id 已正确发布,看起来如下所示:
{"id":1}
然而,响应流讲述了完全不同的故事,它看起来像下面这样:
<title>The parameters dictionary contains a null entry for parameter 'id' of non-nullable type 'System.Int32' for method 'System.Web.Mvc.ActionResult ShowEmployeeDetails(Int32)'
return PartialView("_EmployeeDetails");
}
我不知道为什么会这样。有什么建议吗?
您不需要对 json 对象进行字符串化。将 ajax 选项更改为
ajax({
data: { id: 1 }, // change this
url: '@Url.Action("ShowEmployeeDetails", "Employee")', // recommended
.....