问排序后webgrid为空

EN

Index.cshtml is my main view. Here i m rendering partial view (_GridPartialView.cshtml). Index view has one webgrid and search text box.
I am using ajax call to search in webgrid. Ajax code is mention below.

**Index.cshtml:**

@model List<Login>
@{
    ViewBag.Title = "User";
}


<h2 style="background-color: grey">User</h2>

<table>

    <tr>
        <td>
           <input type="text" id="txtSearch" placeholder="  Search..." onkeyup="Search()" />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
            @Html.ActionLink("Create New User", "CreateUser")</td>
    </tr>
    <tr>
        <td>

                <div id="divPartialView">
                    @Html.Partial("~/Views/Shared/_GridPartialView.cshtml", Model)
                </div>

        </td>
    </tr>
</table>


<script type="text/javascript">


    function Search() {
        var searchVal = $("#txtSearch").val();

        $.ajax({

            type: "GET",
            url: '/User/Search',
            data: { searchString: searchVal },
            dataType: 'html',
            success: function (data) {
                $('#divPartialView').html(data);

            }

        });

    }
</script>

_GridUserPArtialView.cshtml: This is partial view used in index view.

@model List<Login>
  <script src="../../Scripts/jquery-1.7.1.min.js" type="text/javascript"></script>
    <style type="text/css">
        .webGrid { margin: 4px; border-collapse: collapse; width: 500px;  background-color:#FCFCFC;}
        .header { background-color: #C1D4E6; font-weight: bold; color: #FFF; }
        .webGrid th, .webGrid td { border: 1px solid #C0C0C0; padding: 5px; }
        .alt { background-color: #E4E9F5; color: #000; }
        .gridHead a:hover {text-decoration:underline;}
        .description { width:auto}
        .select{background-color: #389DF5}
    </style>

         @{
             var grid = new WebGrid(null, canPage: true, rowsPerPage: 5, selectionFieldName: "selectedRow", ajaxUpdateContainerId: "grid");
        grid.Pager(WebGridPagerModes.NextPrevious);
        grid.Bind(Model, autoSortAndPage: true, rowCount: Model.Count);}
       <div id="grid">
        @grid.GetHtml(

        tableStyle: "webGrid", mode: WebGridPagerModes.All,

                firstText: "<< First",
                previousText: "< Prev",
                nextText: "Next >",
                lastText: "Last >>",
                headerStyle: "header",
                alternatingRowStyle: "alt",
                selectedRowStyle: "select",
                columns: grid.Columns(

                grid.Column("UserName", "User Name", style: "description"),
                grid.Column("FirstName", "First Name"),
                grid.Column("LastName", "Last Name"),
                grid.Column("Action", format: @<text>

         @if (@item.LoginUserName != "administrator"){
                  @Html.ActionLink("Edit", "Edit", new { id=item.LoginUserName}) 
                  @Html.ActionLink("Delete","Delete", new { id = item.LoginUserId},new { onclick = "return confirm('Are you sure you wish to delete this user?');" }) 

                 }
                            </text>,  style: "color:Gray;" , canSort: false)
         )) 

</div>

**UserController.cs**: This is Search action method inside. usercontroller. It is HTTPGET.

[HttpGet]
        public PartialViewResult Search(string searchString)
        {
            List<Login> userListCollection = new List<Login_User>();

            userListCollection = Login_User_Data.GetAllUsers();

            if (Request.IsAjaxRequest())
            {

                if (!string.IsNullOrEmpty(searchString))
                {
                    Log.Info("UserController: Index() Started");
                    var searchedlist = (from list in userListCollection
                                        where list.FirstName.IndexOf(searchString,StringComparison.OrdinalIgnoreCase) >=0
                                        || list.LoginUserName.IndexOf(searchString, StringComparison.OrdinalIgnoreCase) >= 0
                                        || list.LastName.IndexOf(searchString, StringComparison.OrdinalIgnoreCase) >= 0
                                        select list
                                            ).ToList();

                    return PartialView("~/Views/Shared/_GridPartialView.cshtml", searchedlist);

                }
                else
                {
                    Log.Info("UserController: Search(Login_User user) Ended");
                    return PartialView("_GridPartialView", userListCollection);
                }
            }
            else
            {
                return PartialView("_GridPartialView", userListCollection);
            }

            Log.Info("UserController: Search() Ended");
        }



Hope this will help you. Let me know if you have any concern.
From: www.Dotnetmagics.com

    [HttpGet]
    public ActionResult YourActionMethod()
    {
        return PartialView("YourView",YourModel);
    }