private void detach_Carros(Carro entity)
		{
			this.SendPropertyChanging();
			entity.Categoria = null;
		}
		private void attach_Carros(Carro entity)
		{
			this.SendPropertyChanging();
			entity.Categoria = this;
		}
 partial void UpdateCarro(Carro instance);
 partial void DeleteCarro(Carro instance);
 partial void InsertCarro(Carro instance);