Opening an aspx page using ModalPopupExtender

Hi,

I installed yesterday AjaxControlToolkit and I try to use ModalPopup
for the first time.

When the user clicks a button, a modalPopup should appear which
contains an aspx page.

Until now, I implemented it using window.showModalDialog. I would
like to change implementation to using the modalPopup.

However, I noticed that I should fill the "PopupControlID" which
contains the id of a panel.

It is possible to open an aspx page instead of a panel?

Thanks so much.

Ruthie.

load aspx page into modalpopupextender

Did you ever get the answer to this? I'm trying to figure this out, too. If you have the answer, would love to know. Thanks.