问c# HtmlHelper无法转换lambda表达式

EN

using System;
using System.Web.Mvc;
using Kendo.Mvc.UI;
using System.Linq;
using Popup.BLL.ViewModel;

namespace Popup.Web.KendoHelper
{
    public static class PickListHelper
    {
        public static Kendo.Mvc.UI.Fluent.GridBuilder<T> PickList<T>(this HtmlHelper helper, string gridName, string gridClass, int gridHeight)
             where T : class
        {
            return helper.Kendo().Grid<T>()
            .Name(gridName)
                    .Columns(columns =>
                    {
                        columns.Bound(c => c.Text).Title("Associated");
                    })
            .HtmlAttributes(new { @class = gridClass, style = "height: " + gridHeight + "px;" })
            .Scrollable()
            .Sortable()
            .Selectable(selectable => selectable
                .Mode(GridSelectionMode.Multiple))
            .Events(events => events.Change("onSelectAssociatedGridElements"))
            .DataSource(datasource => datasource.Ajax().Read(read => read.Data("getAssociatedGridDataSource")));

        }
    }
}`

public class TextViewModel
    {
       public int Id { get; set; }
       public string Text { get; set; }
    }