title: sum column with linq to sql
body: <p>I have a DataView in which I would like to sum a column called "Amount"</p>
  
  <p>Now I know I can iterate thru the columns and get the sum but I was wondering if is possible using Linq to Sql?</p>
  
  <p>String sum = Linq to Sql stuff here (doesn't have to be a string, can be any type)</p>
  
  <p>Thanks,
  rodchar</p>