Multiple Update Panels - Postback on Panel A cancels Postback on Panel B

Hi,

I have a page with multiple Update Panels. Each panel has a button as a trigger.

When the first button is clicked it causes the first panel to update (as you'd expect), however if while this panel is being updated, the second button is clicked to update the second panel, the first request is cancelled, and the first panel is never updated.

Is this the expected behavior? Are there any work arounds?

Many Thanks,
Ady

Yes, unfortunately it is by design. Only the last UpdatePanel requets will be considered and prior reuests discarded.

Hmm, thats a shame.

I wonder if there is a way to intercept the request, and effectively queue it until the first request completes.

Time to start playing.

This tutorial might help you get started:http://ajax.asp.net/docs/tutorials/ExclusiveAsyncPostback.aspx.