private void UserControl_Loaded_1(object sender, RoutedEventArgs e)
 {
     if (_timelineViewModel == null)
     {
         _timelineViewModel = new TimelineViewModel(this)
         {
             TimeSpanSelect    = _timespanEnum,
             StartDateTime     = _startDateTime,
             DataSource        = _dataSource,
             DataCellWidth     = _dataCellWidth,
             EventModelManager = _eventModelManager,
         };
     }
     _timelineViewModel.Initialize();
 }
        protected override void OnNavigatedTo(NavigationEventArgs e)
        {
            base.OnNavigatedTo(e);

            if (NavigationContext.QueryString.Count > 0)
            {
                int gameId = Convert.ToInt32(NavigationContext.QueryString["gameid"]);
                _vm.Initialize(gameId);
            }
        }