title: How to add or multiply data fields values in QRDBtext report?
body: <p>Hi I am using Delphi 7 with Quick Reports to print values from an Access database with the field names having months from January to December and data types as number. I have designed a form with <code>QRDBrep</code> then inserted <code>QRDBtext</code> that displays the amount paid values from the database which is connected with a <code>TADOQuery</code> component.</p>
  
  <p>How do I add the field values in the <code>QRDBtext</code>? I have tried using a <code>QRExpr</code> as follows:</p>
  
  <pre><code>SUM(ADOQuery1.January + ADOQuery1.february...)
  </code></pre>
  
  <p>but the results are blank in the preview. Is there a way of adding the <code>QRDBtext</code> values using a <code>QRExpr</code> or any other way of doing it?</p>