Background for the problem:
1. I have an update panel in the master page.
2. The update panel in the master page has 2 dropdown lists and a button.
3. I have set the updatemethod to 'conditional' for this panel and the trigger to asynchronously postback based on the click event of the button.
4. I have a content page with update panels with the update mode set to 'always'.
When I click the button in the update panel in the master page, nothing happens - no asynchronous posbacks.
Please let me know how I can resolve this issue.
fyi: I have attached herewith a file to simply show how my page looks.
Thanks for helping.