[ULC-developer] long-running task

[McCarty, Brian]

I have a long-running task that retrieves data by calling a RPG program
on an IBM AS400 through the server.  This task is initiated by a button
click.  When the button is clicked I would like to change the text of
some ULCLabels on the current screen and also display a new ULCFrame
with a wait message.  With the code below the labels are not changed and
the frame not displayed until after the long-running task has completed.

 

How can I force the display to change on the client before the
long-running task begins?

Thanks,

Brian

 

btnExport.addActionListener(new
com.ulcjava.base.application.event.IActionListener() {

   public void
actionPerformed(com.ulcjava.base.application.event.ActionEvent e) {

      ULCFrame waitMsg = new ULCFrame("Please Wait");

      waitMsg.setBounds(100, 100, 300, 200);

      waitMsg.setVisible(true);

 

      labelCurrentASN.setText("");

      labelASNDate.setText("");

      labelASNDescription.setText("");

 

      UserSpaceExport asnExport = new UserSpaceExport(appVars);

      asnExport.setStrRFMLrec("asnRec");

      asnExport.setStrCriteria(getStrCriteria(true));

      String id = DownloadManager.INSTANCE.put(asnExport);

      try {

         DownloadManager.INSTANCE.showDocument(id, "template");

      }

      catch(IOException ioe){

         new ULCAlert("Error Message - FinInqAsnLkup","Cannot open
spreadsheet: " + ioe,"OK").show();

      }

   }

});

 


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