バージョン

BeforeToolbarListDropdownEventArgs クラス

UltraToolbarsManager.BeforeToolbarListDropdown イベントに使用されるイベントパラメーター。
シンタックス
'宣言
 
Public Class BeforeToolbarListDropdownEventArgs 
   Inherits System.ComponentModel.CancelEventArgs
public class BeforeToolbarListDropdownEventArgs : System.ComponentModel.CancelEventArgs 
使用例
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
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);		
			}

		}
参照