/// <summary>
        /// Preferences Trigger Handler
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void HandlePreferencesTriggered(object sender, TriggerEventArgs e)
        {
            IUQueryController queryController = Parent as IUQueryController;

            if (queryController == null)
            {
                return;
            }

            if (!queryController.CheckPendingChanges(true, true))
            {
                return;
            }

            bool lRefresh = false;

            lRefresh = ScenarioManager.LaunchPreferencesScenario(queryController);

            if (!lRefresh)
            {
                return;
            }

            // Refresh all data
            OnExecuteCommand(new ExecuteCommandEventArgs(ExecuteCommandType.ExecuteRefresh));
        }