I use a ModalPopupExtender within a User Control. Under the first release of the AtlasControlToolkit everything was working perfectly.
When I installed the lastest verion of the tookit, the modal popup started acting strange. Instead of being centered on the page, it was shifted down and to the right.
Obviously that's what happens when the code thinks the parent containiner in DOM in something other than the body.
There seems to be no changes at all in the .NET code for ModalPopup, so I am left to assume that there was some change made to AtlasControlExtender that is causing the problem.
If I had access to the AtlasControlExtender code, I would recommend a change here, but I don't have access. Is MS going to release that code at some point?
I have created a complete test page (below) that demonstrates the problem in action. If you include the new AtlasControlToolkit (6/26/2006), it will exhibit the problem. If you swap in the old toolkit binaries, it will work as it should (covering and centering on the whole page).
If a MS developer looks at this (I hope y
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