BeforeToolbarListDropdownEventHandler Delegate

Delegate for handling the UltraToolbarsManager.BeforeToolbarListDropdown event.

Syntax

Visual Basic

'Declaration
 
Public Delegate Sub BeforeToolbarListDropdownEventHandler( _
   ByVal sender As Object, _
   ByVal e As BeforeToolbarListDropdownEventArgs _
) 

C#

public delegate void BeforeToolbarListDropdownEventHandler( 
   object sender,
   BeforeToolbarListDropdownEventArgs e
)

Parameters

sender

e

Example

The following code demonstrates how to access the information passed in the event arguments of the BeforeToolbarListDropdown event and conditionally cancel the 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.

Visual Basic

Imports System.Diagnostics
Imports Infragistics.Win
Imports Infragistics.Win.UltraWinToolbars

	Private Sub UltraToolbarsManager1_BeforeToolbarListDropdown(ByVal sender As Object, ByVal e As Infragistics.Win.UltraWinToolbars.BeforeToolbarListDropdownEventArgs) Handles UltraToolbarsManager1.BeforeToolbarListDropdown

		Dim dr As DialogResult = MessageBox.Show(Me, "The toolbar list is about to dropdown. Do you want to cancel the dropdown?", "Cancelable Toolbar Event", MessageBoxButtons.YesNo)
		If dr = DialogResult.Yes Then
			e.Cancel = True
		Else
			dr = MessageBox.Show(Me, "The toolbar list is about to dropdown. Do you want to show the Customize option in the list?", "Cancelable Toolbar Event", MessageBoxButtons.YesNo)
			e.ShowCustomizeMenuItem = (dr = DialogResult.Yes)

			dr = MessageBox.Show(Me, "The toolbar list is about to dropdown. Do you want to show the Lock Toolbars option in the list?", "Cancelable Toolbar Event", MessageBoxButtons.YesNo)
			e.ShowLockToolbarsMenuItem = (dr = DialogResult.Yes)
		End If

	End Sub

C#

using System.Diagnostics;
using Infragistics.Win;
using Infragistics.Win.UltraWinToolbars;

		private void ultraToolbarsManager1_BeforeToolbarListDropdown(object sender, Infragistics.Win.UltraWinToolbars.BeforeToolbarListDropdownEventArgs e)
		{

			DialogResult dr =  MessageBox.Show(this, "The toolbar list is about to dropdown. Do you want to cancel the dropdown?", "Cancelable Toolbar Event", MessageBoxButtons.YesNo);
			if (dr == DialogResult.Yes)
				e.Cancel = true;
			else
			{
				dr =  MessageBox.Show(this, "The toolbar list is about to dropdown. Do you want to show the Customize option in the list?", "Cancelable Toolbar Event", MessageBoxButtons.YesNo);
				e.ShowCustomizeMenuItem = (dr == DialogResult.Yes);		

				dr =  MessageBox.Show(this, "The toolbar list is about to dropdown. Do you want to show the Lock Toolbars option in the list?", "Cancelable Toolbar Event", MessageBoxButtons.YesNo);
				e.ShowLockToolbarsMenuItem = (dr == DialogResult.Yes);		
			}

		}

Requirements

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