Close Filtering Popup on Pressing Filter Button

Updated on Oct 1, 2025

In order to close filtering Popup on pressing the fitler button, you need to override the OnApplyFilter method of FilteringControl.

A demo on how to achieve the desired behavior is available in our SDK Samples Browser. The demo is labeled "Close Filtering Popup" and can also be found on GitHub - CloseFilteringPopupFilterButton.

Example 1: Overriding OnApplyFilter method

C#

	public class MyFilteringControl : FilteringControl
	{
		public MyFilteringControl(Telerik.Windows.Controls.GridViewColumn column) : base(column)
		{         
	
		}        
	   
		protected override void OnApplyFilter()
		{
			base.OnApplyFilter();
	
			var popup = this.ParentOfType<Popup>();
			if (popup != null)
			{
				popup.IsOpen = false;
			}           
		}
	}

VB.NET

	Public Class MyFilteringControl
		Inherits FilteringControl
		Public Sub New(column As Telerik.Windows.Controls.GridViewColumn)
	
			MyBase.New(column)
		End Sub
	
		Protected Overrides Sub OnApplyFilter()
			MyBase.OnApplyFilter()
	
			Dim popup = Me.ParentOfType(Of Popup)()
			If popup IsNot Nothing Then
				popup.IsOpen = False
			End If
		End Sub
	End Class

Then you can apply it to a desired column like so:

Example 2: Apply the Custom Filter to the column

C#

	this.radGridView.Columns["Name"].FilteringControl = new MyFilteringControl(this.radGridView.Columns["Name"]);

VB.NET

	Me.radGridView.Columns("Name").FilteringControl = New MyFilteringControl(Me.radGridView.Columns("Name"))

In case you are using NoXaml Binaries and Implicit Styles, you should additionally apply a template. Please refer to the Styling custom controls section.

The Style you should apply in XAML then is:

Example 3: Style targetting the custom control

XAML

	<Style TargetType="my:MyFilteringControl" BasedOn="{StaticResource FilteringControlStyle}"/>