我想在编辑模式下或当我添加Html.DropdownListFor使用clienttemplate dropdownlist未绑定选定值时将过滤器添加到外键列（SolQRCode）。 谁能帮我吗？
@(Html.Kendo().Grid<TESTVM>()
.Name("TESTGrid")
.EnableCustomBinding(true)
.Editable(editable => editable.Mode(GridEditMode.InLine).DisplayDeleteConfirmation(false))
.AutoBind(true)
.Columns(columns =>
{
columns.Bound(c => c.ID).Hidden();
columns.Bound(c => c.SolName).Filterable(true);
columns.ForeignKey(p => p.SolTypeID(System.Collections.IEnumerable)ViewData["solTypeDef"], "ID", "SolName").Filterable(true);
columns.Bound(c => c.Active).HtmlAttributes(new { style = "text-align: center" }).ClientTemplate("#if(Active){#<i class='fa fa-check-square-o'></i>#} else {#<i class='fa fa-square-o'></i>#}#").Width(96).Filterable(false);
columns.ForeignKey(p => p.SolQRCode, (System.Collections.IEnumerable)ViewData["medicines"], "SolQRCode", "Name").Filterable(true);
columns.Bound(c => c.SolQRCode).ClientTemplate( Html.DropDownListFor(c => c.SolQRCode, new SelectList((System.Collections.IEnumerable)ViewData["medicines"], "SolQRCode", "Name"), "--- Select ---", new { @class = "form-control dropdownErp", @id = "inputSelect" }).ToString());
columns.Command(command => command.Edit().Text("<i class='fa fa-edit'></i>").UpdateText("<i class='fa fa-floppy-o'></i>").CancelText("<i class='fa fa-times'></i>")).HtmlAttributes(new { style = "text-align: center" }).Width(100).Title("Değiştir");
columns.Command(command => command.Destroy().Text("<i class='fa fa-trash'></i>")).HtmlAttributes(new { style = "text-align: center" }).Width(100).Title("Sil");
})
.Filterable(ftb => ftb.Mode(GridFilterMode.Row))
.ToolBar(tools => tools.Excel().Text("Excel'e Aktar"))
.Pageable(p => p.Refresh(true)
.Sortable()
.Scrollable(s => s.Height("50vh"))
.DataSource(dataSource => dataSource
.Ajax()
.Read("TESTGrid_Read", "TESTGrid", new { fullpage = "true" })
.Create("TESTGrid_Create", "TESTGrid")
.Update("TESTGrid_Update", "TESTGrid")
.Destroy("TESTGrid_Destroy", "TESTGrid")
.PageSize(20)
.Model(model =>
{
model.Id(b => b.ObjectID);
model.Field(c => c.SolutionTypeID);
model.Field(c => c.SolutionQRCode);
})
.Events(e => e.Error("TESTGrid_error_handler").RequestStart("TESTGrid_onRequestStart").RequestEnd("TESTGrid_onRequestEnd"))
)
.Events(e => e.DataBound("onDataBound").Edit("onGridEdit").Cancel("onCancel")) )