If you have a popup panel that contains yet another popup, it won't work, as PopupControlExtender supports the only popup visible at the same time and the first one gets closed instead of second one being displayed.
A small sample is attached.
Comments: This ticket was filed for a pre-15.1 version of AJAX Control Toolkit. If this is still an issue in v15.1 or later, please file a new issue.
A small sample is attached.
Comments: This ticket was filed for a pre-15.1 version of AJAX Control Toolkit. If this is still an issue in v15.1 or later, please file a new issue.