'宣言 Protected Overridable Sub OnActiveTabChanging( _ ByVal e As ActiveTabChangingEventArgs _ )
protected virtual void OnActiveTabChanging( ActiveTabChangingEventArgs e )
Imports Infragistics.Win Imports Infragistics.Win.UltraWinTabs Imports Infragistics.Win.UltraWinTabControl Private Sub ultraTabControl1_ActiveTabChanging(ByVal sender As Object, ByVal e As Infragistics.Win.UltraWinTabControl.ActiveTabChangingEventArgs) Handles ultraTabControl1.ActiveTabChanging Dim dr As DialogResult dr = MessageBox.Show(Me, "The tab with text '" + e.Tab.Text + "' is about to be activated. Do you want to cancel activation?", "Cancelable Tab Event", MessageBoxButtons.YesNo) If (dr = DialogResult.Yes) Then e.Cancel = True End If End Sub
using System.Diagnostics; using Infragistics.Win; using Infragistics.Win.UltraWinTabs; using Infragistics.Win.UltraWinTabControl; private void ultraTabControl1_ActiveTabChanging(object sender, Infragistics.Win.UltraWinTabControl.ActiveTabChangingEventArgs e) { DialogResult dr = MessageBox.Show(this, "The tab with text '" + e.Tab.Text + "' is about to be activated. Do you want to cancel activation?", "Cancelable Tab Event", MessageBoxButtons.YesNo); if (dr == DialogResult.Yes) e.Cancel = true; }