Well, it did not really worked for me. Now I changed my simple update panel to radAjaxPanel. So now, In my Master Page, I have got timer inside RadAjaxPanel with no radAjaxManager here coz I use it in content page. In my content page, I have used AJAX settings for controls. The issue is when the flow goes to master page and specially in Tick event of Timer Control which checks my appointment alert and displays pop up accordingly, The Loading Panel in content page doesnt work. otherwise everything is working fine.
What I am trying to achieve; I need to check due date of a particular task from database and if current time matches with that task's due time, it displays pop up (RADWINDOW) with relevant details. This functionality I have put on master page so that I need not to check/put each content page for the same.
Please help me out in this...