title: Datagridview Format Column Issue
body: <p>I am trying to format 2 columns in two different formats</p>
  
  <p>first column 4 digit width, i need the output to be 123.4 when the user types in 1234.</p>
  
  <p>i tried using </p>
  
  <pre><code>__dgw.Columns["column"].DefaultCellStyle.Format = "N1";
  </code></pre>
  
  <p>but the output is 1,234.0  i dont want commas and just need 123.4 i tried d1 etc</p>
  
  <p>is there such a thing as a masked column?</p>
  
  <p>i also need a way a way to create another column with a mask of ##-##-##? </p>
  
  <p>thank you in advance for your help</p>