/// <summary>
/// Provides a deterministic way to create the ForestNatureViewModel property.
/// </summary>
public static void CreateForestNatureViewModel()
{
if (_forestNatureViewModel == null)
{
_forestNatureViewModel = new ForestNatureViewModel();
}
}
/// <summary>
/// Provides a deterministic way to delete the ForestNatureViewModel property.
/// </summary>
public static void ClearForestNatureViewModel()
{
_forestNatureViewModel.Cleanup();
_forestNatureViewModel = null;
}