Bug? DropDownList not rendering binding to IDictionary<string,string> in MVC

[Ian]

Using this code I bind to a IDictionary<string,string> that has one item:

@(Html.Kendo().DropDownList()
      .Name("SelectedClientIdKendo")
      .HtmlAttributes(new { style = "width:200px" })
      .DataTextField("Key")
      .DataValueField("Value")
      .BindTo(Model.ClientList)
      )

The HTML looks ok that is rendered by the MVC wrapper, but the dropdownlist doesn't visually show any items in the list:

      <input id="SelectedClientIdKendo" name="SelectedClientIdKendo" style="width:200px" type="text" />
<script>

    jQuery(function(){jQuery("#SelectedClientIdKendo").kendoDropDownList({"dataSource":{"2XXXXX":"2YYYYY"},"dataTextField":"Key","dataValueField":"Value"});});

</script>

                

[Ian]

I found if you force the BindTo to use a SelectList for the same data, it works.

Not sure if it's a bug though as the data is rendered in the HTML

.BindTo(new SelectList(Model.ClientList, "Key", "Value"))