title: Get sum of a field per page in crystal report
body: <p>I Have a Crystal Report and get the sum of a field like this:</p>
  
  <pre><code>Sum({TheField})
  </code></pre>
  
  <p>and I put it in PageFooter section to have it in all pages but if the report has multiple pages it shows the sum of all fields and I need to get the sum per page.</p>
  
  <p>Any ideas how to do that?</p>