Below you will find pages that utilize the taxonomy term “ModalPopupExtender”
Blog
ModalPopupExtender in SharePoint – part II
As I said earlier, we didn’t test our solution to using the ModalPopupExtender in SharePoint in all situations. Today we made a start to do so. To indicate our successrate: we now use window.showModalDialogwith some extra pages…
Lets go through some of the problems we encountered.
Placing an UpdatePanel around the entire UserControl (with default settings) makes that the entire UserControl is posted back, even when it is a control inside a nested UpdatePanel that posts back.
Blog
Getting the ModalPopupExtender to work in SharePoint 2007
Getting the ModalPopupExtender from the Ajax Control Toolkit to work (decently) in SharePoint was not exactly a walk in the park. With a default SharePoint installation, the modal popup is partly positioned ‘outside’ of the page (you only see the bottom right part of the popup in the top left corner of the browser). Postbacks are not executed or executed poorly and the page gets garbled up. A possible solution for the positioning of the popup is to set the X and Y property of the ModalPopupExtender.