I have a master page named siteMaster.master, an aspx page called submission.aspx, and a user control named attachment.ascx. The script manager is included in my master page. The submission page inherits the master page and registers the user control attachment.ascx.
Now, I am trying to add an update panel and updateProgress on the ascx page so that I can display a "please wait" message on my user control when clicking on an event. I attempted to use the script manager and script Manager Proxy, but the Update Progress feature did not work as expected. Any suggestions on what might be causing this issue?