title: DataGridViewTextBoxColumn add commas in numeric cell
body: <p>How can I have my datagrid automatically add commas to a cell to format the numbers.  I tried changing the format of the defaultcellstyle to numeric but it didn't help.</p>
  
  <p>I'm looking for it to do something like</p>
  
  <p>user enters   503412.45</p>
  
  <p>The number display changes to 503,412.45</p>
  
  <p><strong>UPDATE</strong>:  I set the format of the column at design time (through the properties window in VS).  It is not databound, users manually add rows.  The columns are also created at design time by using the Collections option in the properties window</p>