title: .Net: how can I have a combobox with multitple fields of its data source as Displaymember?
body: <p>How can I have a combobox with multiple fields of its data source as its display member without adding additional columns to its data source?</p>
  
  <p>I mean I wanna to have a combobox with displaymember like "ID" + "-" "Name" .<br>
  1 - Black<br>
  2 - White<br>
  3 - Red</p>
  
  <p>I  DO NOT  want to add additional column to its data source.</p>
  
  <p>Thank you</p>