private void detach_tb_venda(tb_venda entity)
 {
     this.SendPropertyChanging();
     entity.tb_pessoa = null;
 }
 private void attach_tb_venda(tb_venda entity)
 {
     this.SendPropertyChanging();
     entity.tb_pessoa = this;
 }
 partial void Updatetb_venda(tb_venda instance);
 partial void Deletetb_venda(tb_venda instance);
 partial void Inserttb_venda(tb_venda instance);