Use generic FilterDescriptor

This help article will show you how to create generic expression FilterDescriptors for RadGridView.

Generic FilterDescriptor

The new FilterDescriptor allows you to directly plug a predicate that determines which items are filtered. You just need to set a lambda to the FilteringExpression property like so:

Example 3: Create a generic FilterDescriptor.

var descriptor = new FilterDescriptor<Employee> { FilteringExpression = e => prospects.Contains(e) }; 

Then, you should add the defined FilterDescriptor to the FilterDescriptors collection of RadGridView.

For more information you can check the Filtering section

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