title: ADO.NET entity data model deleting many rows
body: <p>I have following structure of the database</p>
  
  <pre><code>CREATE TABLE IF NOT EXISTS `klienci` (
    `id` int(11) NOT NULL AUTO_INCREMENT,
    `nazwa` varchar(50) NOT NULL,
    `miejscowosc` varchar(50) NOT NULL,
    PRIMARY KEY (`id`)
  ) ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=1 ;
  
  CREATE TABLE IF NOT EXISTS `klienci_do_trasy` (
    `klient_id` int(11) NOT NULL,
    `trasa_id` int(11) NOT NULL,
    `seq` int(11) NOT NULL,
    PRIMARY KEY (`klient_id`,`trasa_id`),
    KEY `trasa_id` (`trasa_id`),
    KEY `klient_id` (`klient_id`,`trasa_id`)
  ) ENGINE=InnoDB DEFAULT CHARSET=latin1;
  
  CREATE TABLE IF NOT EXISTS `trasy` (
    `id` int(11) NOT NULL AUTO_INCREMENT,
    `nazwa` varchar(50) NOT NULL,
    PRIMARY KEY (`id`)
  ) ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=1 ;
  
  ALTER TABLE `klienci_do_trasy`
    ADD CONSTRAINT `klienci_do_trasy_ibfk_5` FOREIGN KEY (`klient_id`) REFERENCES `klienci` (`id`) ON DELETE NO ACTION ON UPDATE NO ACTION,
    ADD CONSTRAINT `klienci_do_trasy_ibfk_6` FOREIGN KEY (`trasa_id`) REFERENCES `trasy` (`id`) ON DELETE NO ACTION ON UPDATE NO ACTION;
  </code></pre>
  
  <p>And I would like to run query similar to:</p>
  
  <pre><code>DELETE FROM klienci_do_trasy WHERE klient_id = 1;
  </code></pre>
  
  <p>Don't know how to do this with ADO.NET entity</p>