Kendo/JQuery 搜索框不通过“ICollection”进行搜索？

Question

我有一个 Kendo 网格，在 .ToolBar 我有一个搜索框，可以根据输入的内容过滤网格，总体来说，它工作正常。

问题是它不是 reading/searching 通过涉及使用 ICollection 的特定列（Maker 和 Associated）。我尝试了一些方法，但我不知道如何为这些列正确编写搜索。

我会注意到 Maker 和 Associated 列本身被正确填充，并且每个列自己的过滤器也能正常工作

首先，这是一个精简示例，说明如何在 Index.cshtml

中创建列和搜索框

@(Html.Kendo().Grid(Model).Name("gridWF")
.Columns(columns =>
    {
        column.Bound (p1 => p1.Id.Filterable(ftb => ftb.Cell(cell => cell.ShowOperators(true).InputWidth(90))).Width(150);
        column.Bound (p1 => p1.Name.Filterable(ftb => ftb.Cell(cell => cell.ShowOperators(true).InputWidth(90))).Width(150);
        column.Bound (p1 => p1.Item.Filterable(ftb => ftb.Cell(cell => cell.ShowOperators(true).InputWidth(90))).Width(150);
        column.Bound (p1 => p1.Maker.Filterable(ftb => ftb.Cell(cell => cell.ShowOperators(true).InputWidth(90))).Width(150);
        column.Bound (p1 => p1.Associated.Filterable(ftb => ftb.Cell(cell => cell.ShowOperators(true).InputWidth(90))).Width(150);
    }
.Pageable()
.ColumnMenu()
.ToolBar(toolBar => toolBar.Template(@<text><input class='k-textbox' value="Search..." onfocus="if (this.value=='Search...') this.value='';" onblur="this.value = this.value==''?'Search...':this.value;" id='searchbox'/></text>)
.DataSource(datasource => datasource.Ajax()
  .PageSize(15)
  .ServerOperation(false)
  .Read(r => r.Action("Read", "Workflows").Data("addSearch"))
  )  

<script type="text/javascript">
    function addSearch() {
        return { searchbox: $('#searchbox').val() };
    }
    $('#searchbox').keyup(function () {
        $('#gridWF').data('kendoGrid').dataSource.read();
    });
</script>

控制器的搜索部分

private IEnumerable<WorkflowViewModel> GetData(string searchbox = "")
        {
        var number = 0;
        int.TryParse (searchbox, out number);
        var result = (from w in Repo.GetWF()
                      where w.Id == number ||
                            w.Name.ToLower ().Contains (searchbox.ToLower ()) ||
//Failed attempt            w.UserRoles.Where (ur => ur.Role.Name.ToLower ().Contains (searchbox.ToLower())) != null || 
//Failed attempt            w.UserRoles.Where (ur => ur.Role != null && wr.Role.Name.ToLower().Equals ("maker", StringComparison.InvariantCultureIgnoreCase)).Select (wr => wr.UserName).FirstOrDefault ().Contains (searchbox.ToLower()) ||
                            w.ImportProduct.Item.Name.ToLower ().Contains (searchbox.ToLower ()) ||
                            searchbox == ""
                     select new ViewModel (w, User.Identity.Name)).ToList();
        return result;
        }

这里是ViewModel.cs

中的适用代码

public class ViewModel

  public ViewModel(Workflow workflow, string userName = null)
    {
    Id = workflow.Id;  
    Name = workflow.Name;  
    Item= workflow.ImportProduct.Item.Name  
    Maker= Workflow.GetByRoles(workflow, "maker");  
    Associated= Workflow.GetByRoles(workflow, "associated");  
    }

Workflow.cs

public class Workflow
    {
    public Workflow()
        {
        UserRoles = new List<UserRole>();
        }

        [Key]
        public int Id
            {
            get;
            set;
            }

        [Required(ErrorMessage="*")]
        [Display(Name="Name")]
        public string Name
            {
            get;
            set;
            }

        [Required]
        public int ImportId
            {
            get;
            set;
            }


        [ForeignKey("ImportId")]
        public virtual Product ImportProduct 
            {
            get;
            set;
            }

    public ICollection<UserRole> UserRoles 
        {
        get;
        set;
        }

    public static string GetByRoles (Workflow workflow, string role)
        {
        string userString = "";
        if(workflow.UserRoles != null)
            {
            var query = from ur in workflow.UserRoles
            where ur.Role.Name.ToLower() == role.ToLower()
            select ur.User.DisplayName;

            foreach(string user in query.ToList()
            {
            usersString += user + ",";
            }
            usersString = usersString.Trim(' ');
            usersString = usersString.Trim(',');
            }
        return usersString;
        }

如果我遗漏了什么，或者有什么地方不清楚，请发表评论，我会尽力澄清。

谢谢

更新：
我为搜索框找到了一个轻微的解决方法，它成功地搜索了列。

//$('#searchbox').keyup(function () {
//    $('#gridWF').data('kendoGrid').dataSource.read();
//});
$('#searchbox').keyup(function () {
    var q = $("#searchbox").val();
    var int = parseInt(q); 
    var grid = $("#gridWF").data("kendoGrid");
    grid.dataSource.filter({
        logic: "or",
        filters: [
              { field: "Id", operator: "eq", value: int},
              { field: "Name", operator: "contains", value: q},
              { field: "Item", operator: "contains", value: q},
              { field: "Maker", operator: "contains", value: q },
              { field: "Associated", operator: "contains", value: q }
            ]
        }
    });

但是，此代码的行为不符合我的需要。这会在每行顶部的所有过滤器框中键入，这是不可接受的；我希望之前使用单个过滤器进行的任何过滤都保留下来。

Answer 1

解决了！
我在 Controller.cs 中需要的行是：

`w.UserRoles.Where (ur => ur.Role.Name.ToLower ().Contains ("maker")).Any (ur => ur.User.Name.ToLower ().Contains (searchbox.ToLower ())) ||`

我尝试失败的问题是 .Select 是 System.Collections.Generic.IEnumerable<bool>，|| 运算符无法使用。 .Any 解决了这个问题，因为它确定是否有任何元素满足条件。

Kendo/JQuery 搜索框不通过“ICollection”进行搜索？

Kendo/JQuery searchbox doesn't search through `ICollection`?

c#

ajax

kendo-ui

kendo-grid

kendo-asp.net-mvc