/// <summary>
 /// Provides a deterministic way to create the ODataViewModel property.
 /// </summary>
 public static void CreateODataViewModel()
 {
     if (_oDataViewModel == null)
     {
         _oDataViewModel = new ODataViewModel();
     }
 }
 /// <summary>
 /// Provides a deterministic way to delete the ODataViewModel property.
 /// </summary>
 public static void ClearODataViewModel()
 {
     _oDataViewModel.Cleanup();
     _oDataViewModel = null;
 }