partial void DeleteDepartment(Department instance);
 partial void UpdateDepartment(Department instance);
		private void detach_ChildDepartments(Department entity)
		{
			this.SendPropertyChanging();
			entity.ParentDepartment = null;
		}
 partial void InsertDepartment(Department instance);
		private void detach_Departments(Department entity)
		{
			this.SendPropertyChanging();
			entity.Hospital = null;
		}