SqlDataSource NULL Parameters: Pass NULL parameters to Stored Procedure using SqlDataSource in ASP.Net

Here Mudassar Ahmed Khan has explained with an example, how to use NULL Parameters with SqlDataSource and how to pass NULL parameters to StoredProcedure using SqlDataSource in ASP.Net. In this article, a GridView will be populated and filtered using a StoredProcedure and SqlDataSource in ASP.Net.