Here you can find information about RadGrid Client-Side Binding
. In order to use client-side binding you need a web service to feed the data to the RadGrid. You must filter the information in the service before the data binding. You can take a look in our implementation in the GenericContent Module in ~\Sitefinity\Admin\ControlTemplates\Generic_Content\ContentItemsList.ascx template. There is a JS function named DataBindGrid
that is used to call and filter the web service.
Hope this helps.
the Telerik team