@model GridPopupEditing.Models.CarModel
<script type="text/javascript">
    function sendCarMakeId() {
        return {
            carMakeId: $("#CarMake").data("kendoDropDownList").dataItem().Id
        };
    }
</script>
@(Html.Kendo().DropDownListFor(m => m)
    .DataTextField("Name")
    .DataValueField("Id")
    .Filter(FilterType.Contains)
    .DataSource(dataSource =>
            {
        dataSource.Read(read => read.Action("GetCarModels", "Grid")
                  .Data("sendCarMakeId"))
                  .ServerFiltering(true);
    })
    .Enable(false)
    .AutoBind(false)
    .CascadeFrom("CarMake")
)