title: Format String to Number iReport
body: <p>i want to generate raport in ireport with existing database.
  I have fields in strings <code>$F{Price}</code> and varible <code>$V{SumPrice}</code> in strings too, and need to convert to integer and sum whole column with field <code>Price</code></p>
  
  <p>Can in do it in ireport ?
  I dont have access to the database.</p>