private void detach_Customers1(Customer entity)
		{
			this.SendPropertyChanging();
			entity.UsrUser1 = null;
		}
		private void attach_Customers(Customer entity)
		{
			this.SendPropertyChanging();
			entity.UsrUser = this;
		}
 partial void DeleteCustomer(Customer instance);
 partial void UpdateCustomer(Customer instance);
 partial void InsertCustomer(Customer instance);
		private void detach_Customers(Customer entity)
		{
			this.SendPropertyChanging();
			entity.ShBlobData = null;
		}