title: tableadaptor - delete rows
body: <p>I have a dataset created in visual studio designer. It has a tableadaptor for charges.</p>
  
  <p>One of the columns in the charges table is 'booking'. This column is NOT a primary key.</p>
  
  <p>I want to delete all rows where the value of 'booking' is 27.</p>
  
  <p>I added a query to the chargesTableAdaptor called DeleteByBooking. It's code:</p>
  
  <pre><code>DELETE FROM charges
  WHERE        (chargesid = @Original_chargesid)
  </code></pre>
  
  <p>In my code I then run:</p>
  
  <pre><code>this.chargesTableAdapter.DeleteBookingCharges(27);
  this.chargesBindingSource.EndEdit();
  this.chargesTableAdapter.Update(this.quick_quoteDataSet.charges);
  </code></pre>
  
  <p>Despite the code building fine, and the app running ok, no rows get deleted from the database!</p>
  
  <p>What am I doing wrong please?</p>