protected virtual bool OnSelectedIndexChanging(object sender, int newIndex)
{
PositionChangingEventHandler handler = (PositionChangingEventHandler)this.Events[SelectedIndexChangingEventKey];
if (handler != null)
{
PositionChangingCancelEventArgs args = new PositionChangingCancelEventArgs(newIndex);
handler(this, args);
return(args.Cancel);
}
return(false);
}
protected virtual void OnPositionChanging(ref PositionChangingEventArgs e)
{
PositionChangingEventHandler handler = PositionChanging;
handler?.Invoke(this, e);
}
