Release
With the next Telerik.Web.UI service pack you will be able to specify your own template for filtering in grid template columns: and using the grid powerful client-side API you can tell the grid to filter specified data source according to selected conditions: The result: Easy and powerful filtering customization in less than a minute! I've used EntityDataSource for my demo connected to Northwind Customers table (and distinct Country from Customers for the combo) and all operations are applied directly to the data-base server without need to write any code: [Live | Download]...