GroupExpanding Event

Occurs before a UltraExplorerBarGroup is expanded.
Public Event GroupExpanding As GroupExpandingEventHandler
public event GroupExpandingEventHandler GroupExpanding
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.
The following code shows how to process the GroupExpanding 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_GroupExpanding(ByVal sender As Object, ByVal e As Infragistics.Win.UltraWinExplorerBar.CancelableGroupEventArgs) Handles ultraExplorerBar1.GroupExpanding

		' Close any other open groups before expanding this one.
		Dim group As UltraExplorerBarGroup

		For Each group In Me.ultraExplorerBar1.Groups
			If ((Not group Is e.Group) AndAlso (group.Expanded = True)) Then
				group.Expanded = False
			End If

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

		private void ultraExplorerBar1_GroupExpanding(object sender, Infragistics.Win.UltraWinExplorerBar.CancelableGroupEventArgs e)
			// Close any other open groups before expanding this one.
			foreach(UltraExplorerBarGroup group in this.ultraExplorerBar1.Groups)
				if (group != e.Group  &&  group.Expanded == true)
					group.Expanded = false;

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