protected virtual void ShowTemplatingOptionsDialog() { IComponentChangeService changeService = (IComponentChangeService)GetService(typeof(IComponentChangeService)); if (changeService != null) { try { changeService.OnComponentChanging(_control, null); } catch (CheckoutException ex) { if (ex == CheckoutException.Canceled) { return; } throw; } } try { TemplatingOptionsDialog dialog = new TemplatingOptionsDialog( this, _control.Site, MobileControlDesigner.MergingContextTemplates); dialog.ShowDialog(); } finally { if (changeService != null) { changeService.OnComponentChanged(_control, null, null, null); if (IMobileWebFormServices != null) { IMobileWebFormServices.ClearUndoStack(); } } } }