如何在Kendo Grid ClientTemplate的If条件中使用ViewBag

public ActionResult Index()
{
    ViewBag.ShowData = true;
    return View();
}

@(Html.Kendo().Grid<MyModel>()
    .Name("grid")
    .Columns(columns =>
    {
        columns.Bound(p => p.Name);
        columns.Bound(p => p.Age);
        columns.Template(@<text>
            # if (@ViewBag.ShowData) { #
                <span>显示数据</span>
            # } else { #
                <span>隐藏数据</span>
            # } #
        </text>);
    })
    .DataSource(dataSource => dataSource
        .Ajax()
        .Read(read => read.Action("GetData", "Home"))
    )
)