/// <summary>
 /// Provides a deterministic way to create the FishingMapViewModel property.
 /// </summary>
 public static void CreateFishingMapViewModel()
 {
     if (_fishingMapViewModel == null)
     {
         _fishingMapViewModel = new FishingMapViewModel();
     }
 }
 /// <summary>
 /// Provides a deterministic way to delete the FishingMapViewModel property.
 /// </summary>
 public static void ClearFishingMapViewModel()
 {
     _fishingMapViewModel.Cleanup();
     _fishingMapViewModel = null;
 }