protected virtual new void OnDisplayModeChanging(WebPartDisplayModeCancelEventArgs e)
 {
 }
 protected virtual void OnDisplayModeChanging(WebPartDisplayModeCancelEventArgs e)
 {
     WebPartDisplayModeCancelEventHandler handler = (WebPartDisplayModeCancelEventHandler) base.Events[DisplayModeChangingEvent];
     if (handler != null)
     {
         handler(this, e);
     }
 }
 protected virtual new void OnDisplayModeChanging(WebPartDisplayModeCancelEventArgs e)
 {
 }