'宣言 Public Delegate Sub GroupRemovingEventHandler( _ ByVal sender As Object, _ ByVal e As CancelableGroupEventArgs _ )
public delegate void GroupRemovingEventHandler( object sender, CancelableGroupEventArgs e )
Imports System.Diagnostics Imports Infragistics.Win Imports Infragistics.Win.UltraWinExplorerBar Private Sub ultraExplorerBar1_GroupRemoving(ByVal sender As Object, ByVal e As Infragistics.Win.UltraWinExplorerBar.CancelableGroupEventArgs) Handles ultraExplorerBar1.GroupRemoving ' Don't allow the group to be removed if it contains any items. If (e.Group.Items.Count > 0) Then e.Cancel = True End If End Sub
using System.Diagnostics; using Infragistics.Win; using Infragistics.Win.UltraWinExplorerBar; private void ultraExplorerBar1_GroupRemoving(object sender, Infragistics.Win.UltraWinExplorerBar.CancelableGroupEventArgs e) { // Don't allow the group to be removed if it contains any items. if (e.Group.Items.Count > 0) e.Cancel = true; }