title: date on DataGridView not formatting as expected
body: <p>I have a column that uses the DateTime format that was set in the column styles. </p>
  
  <p>When a user enters a date, it's not formatting it to the style that it is set to. As a matter of fact, it isn't doing anything to the field. I put gibberish in there and it takes it.</p>
  
  <p>Am I missing something here? Shouldn't it at least format the date or give an error for wrong date format?</p>