private void detach_UserContracts(UserContract entity)
		{
			this.SendPropertyChanging();
			entity.User = null;
		}
		private void attach_UserContracts(UserContract entity)
		{
			this.SendPropertyChanging();
			entity.User = this;
		}
 partial void UpdateUserContract(UserContract instance);
 partial void DeleteUserContract(UserContract instance);
 partial void InsertUserContract(UserContract instance);