Unable to add custom fileters for the rad grid view.

[Hari krishna]

We are unable to add custom filters for the rad grid view , could you please check the assembly version and suggest the solution


Assembly name:Telerik.Windows.Controls.GridView

runtime version: v4.0.30319

Version:2012.2.912.1050

 the below code is giving biuild errors:

 

this.rgEntries.EnableCustomFiltering = true;<br>            this.rgEntries.CustomFiltering += new GridViewCustomFilteringEventHandler(radGridView1_CustomFiltering);<br><br>            FilterDescriptor descriptor = new FilterDescriptor("UnitsPrice", FilterOperator.IsGreaterThan, 0);<br>            this.radGridView1.FilterDescriptors.Add(descriptor);