title: Validate a Single line of text column type of list in sharepoint 2010 to accept only numbers?
body: <p>How to validate a Single line of text column type of list in sharepoint 2010 to enter accept only numbers?</p>
  
  <p>Please don't tell me to use calculated column , I tried it and it didn't work for me as i want.</p>
  
  <p>Please advice, thanks in advance.</p>