ASP.NET updatepanel : updatemode conditional malfunction

I've got a weird problem:

On a page, i开发者_运维知识库've 2 updatepanels in conditional updatemode, with childrenastrigger set to true (default value).

A click on a IPostBackEventHandler control inside either the first or second updatepanel causes the 2 updatepanels to refresh.

This is not the expected behavior. Any Idea?

Verify that both update panels don't have <Triggers> set for the same control. If they do, then yes, both will update when the control posts back.

Edit: I noticed my original post stripped the < >!

ALSO, verify that in your server-side code, you are not manually triggering an update() on both panels, or even a refresh on the original page.

Thanks for replying,

As often, it finally was a parameter problem:

A team worker had forgot to set the AssociatedUpdatePanelID property of an other updatepanel. So it seems like this updatepanel was refreshing too.

Moreover, i forgot that on a asyncpostback, all the controls in the page were recreated (even those inside an updatepanel), but not rendered.

It can be disturbing when debugging...