title: Call application process to download file by oracle apex?
body: <p>I have two region master details , master updates (interactive grid)and the details uploaded file (interactive active report).
  Once click on master region set value in item (p10_id ) and refresh the details  region. In details region I have a button to download all file in zipfile .by redirect to url to call application process by below code </p>
  
  <pre><code> F?p=100:1:session:updatezipfile::::upload_id:&amp;p10_id. 
  </code></pre>
  
  <p>But always the item value send null how i can solve this problem  I tried submit item by plsql </p>
  
  <pre><code>  Begin 
     Null;
   End;
  </code></pre>
  
  <p>Item to submit P10_Id but also not working fine always the item send null.</p>