I'm following the Virtualization demo at http://demos.telerik.com/aspnet-mvc/combobox/virtualization and get data back initially, however I notice that my request parameter is not being populated with what's sent to the server. Mainly the Filter property is null even though it's included in the request.
JsonResult GetParentResellers([DataSourceRequest]DataSourceRequest request)
The only properties that have a value are PageSize, Page and Take.
I've attached an image of the ajax request that the Combobox sends to the server.