private void CommitTaskInEditMode()
        {
            TaskItemModel taskItem = new TaskItemModel(Name, Source, Destination, Reccurrence);

            TaskItemModel[] taskItems = { sourceTaskItem, taskItem };
            MessengerStatic.NotifyTaskWindowInEditModeClosed(taskItems);
        }
        public void CommitTaskInAddMode()
        {
            TaskItemModel taskItem = new TaskItemModel(Name, Source, Destination, Reccurrence);

            MessengerStatic.NotifyTaskWindowInAddModelClosed(taskItem);
        }