partial void UpdatePhone(Phone instance);
 partial void DeletePhone(Phone instance);
 partial void InsertPhone(Phone instance);
		private void detach_Phones(Phone entity)
		{
			this.SendPropertyChanging();
			entity.Customer = null;
		}
		private void attach_Phones(Phone entity)
		{
			this.SendPropertyChanging();
			entity.Customer = this;
		}
		private void detach_Phones(Phone entity)
		{
			this.SendPropertyChanging();
			entity.PhoneType = null;
		}
		private void attach_Phones(Phone entity)
		{
			this.SendPropertyChanging();
			entity.PhoneType = this;
		}