ActiveGroupChanging Event

Occurs before the ActiveGroup changes.
Public Event ActiveGroupChanging As ActiveGroupChangingEventHandler
public event ActiveGroupChangingEventHandler ActiveGroupChanging
Event Data

The event handler receives an argument of type CancelableGroupEventArgs containing data related to this event. The following CancelableGroupEventArgs properties provide information specific to this event.

Cancel (Inherited from System.ComponentModel.CancelEventArgs) 
Group Read-only property that returns the UltraExplorerBarGroup associated with the CancelableGroupEventArgs.

This event fires before the process of changing the active group has begun.

The following code shows how to process the ActiveGroupChanging event.

For an overview of how to handle events in Visual Basic or Visual C#, see Event Handlers in Visual Basic and Visual C#. For specific information and code examples illustrating how to consume events in your application, see Consuming Events in the .NET Framework Developer's Guide.

Imports System.Diagnostics
Imports Infragistics.Win
Imports Infragistics.Win.UltraWinExplorerBar

	Private Sub ultraExplorerBar1_ActiveGroupChanging(ByVal sender As Object, ByVal e As Infragistics.Win.UltraWinExplorerBar.CancelableGroupEventArgs) Handles ultraExplorerBar1.ActiveGroupChanging

		' Don't allow the ActiveGroup to change if the new group has a key of 'Primary'
		If (e.Group.Key = "Primary") Then
			e.Cancel = True
		End If

	End Sub
using System.Diagnostics;
using Infragistics.Win;
using Infragistics.Win.UltraWinExplorerBar;

		private void ultraExplorerBar1_ActiveGroupChanging(object sender, Infragistics.Win.UltraWinExplorerBar.CancelableGroupEventArgs e)
			// Don't allow the ActiveGroup to change if the new group has a key of 'Primary'
			if (e.Group.Key == "Primary")
				e.Cancel = true;

Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Server 2012, Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

See Also