Kendo dropdown list tamplate to disable selected items inside

Disabled few selected items inside dropdown list based on model data

Model return object list and

By using template do the disable and on click false for selected items

@(Html.Kendo().DropDownList()
    .Name("DateRange")
    .DataTextField("RangeNameDefault")
    .DataValueField("ID")
    .BindTo(Model.dashboardDateRangeList)
    .HtmlAttributes(new { style = "width: 100%" })
    .Events(e => e.Change("DateRangeChange"))
    .Template(
     "<span class=\"#: !data.IsDataReady ? 'k-state-disabled': ''#\" onclick=\"#: !data.IsDataReady ? 'return false': ''#\"> #: data.RangeNameDefault #</span>"))