partial void DeleteRegion(Region instance);
 partial void UpdateRegion(Region instance);
		private void detach_Regions(Region entity)
		{
			this.SendPropertyChanging();
			entity.Country = null;
		}
 partial void InsertRegion(Region instance);
		private void attach_Regions(Region entity)
		{
			this.SendPropertyChanging();
			entity.Country = this;
		}