Kendo IsEqualto日期过滤器不起作用

Question

我正在使用启用了可过滤选项的DateTime列。在日期列中，仅Isequalto过滤器无法在服务器中运行，但在localhost中可以正常运行。我不知道此问题的路由原因。下面的示例代码

@(  Html.Kendo().Grid<Assignments>()
    .Name("Grid")
    .BindTo((IEnumerable<Assignments>)Model)
    .Columns(columns =>
     {
      columns.Bound(p => p.UserId).Title("Number").Width(140).EditorTemplateName("GetUserIDAutoComplete")
            .HeaderHtmlAttributes(new { style = "white-space: normal" });
         columns.Bound(p => p.DateDeployed).Title("Date Deployed").Width(140)
             .Format("{0:MM/dd/yyyy}").EditorTemplateName("Datepicker").Width(160)
             .HeaderHtmlAttributes(new { style = "white-space: normal" });

     })
.Events(e => e.DataBinding("GridDataBound"))
    .Editable(editable => editable.Mode(GridEditMode.InLine).CreateAt(GridInsertRowPosition.Top))
    .Events(events => events.Edit("onEdit"))
    //.Events(events => events.Save("onSave"))
    .Pageable(page => page.Refresh(true).PageSizes(new int[] { 10, 25, 50, 75, 100 }))
    .Sortable()
    .Scrollable(scr => scr.Height(430))
    .ColumnMenu()
    .Filterable()
    .DataSource(dataSource => dataSource
        .Ajax()
         .Batch(true)
        .PageSize(10)
        //Sort by SerialNumber by default
        .Sort(a => a.Add("UserId").Ascending())
        .ServerOperation(false)
        .Model(model =>
        {
            model.Id(p => p.UserId);
            model.Field(p => p.DateDeployed).Editable(true);

        })
        .Create(create => create.Action("Create", "Assignments", new { id = "#=UserId#" }))
        .Read(read => read.Action("Read", "Assignments"))
        .Update(update => update.Action("Update", "Assignments").Data("UpdateStat"))
        .Events(events => events.RequestStart("CheckAccess"))
        .Events(events => events.RequestEnd("OnRequestEnd_Grid"))

        )
        )

班级

public class Assignments
    {

        [Required]
        public string UserId { get; set; }
        [Required]
        [DisplayFormat(DataFormatString = "{0:yyyy-MM-dd}", ApplyFormatInEditMode = true)]
        public DateTime? DateDeployed { get; set; }

    }