I am creating a module which has the CalendarExtender implementd. It works great on the development web(DNN 4.8.0) but when I install the module on a newer version of DNN the calendarExtender does not work. I have tried versions 4.8.4 and 4.9.0 and in both it does not work. When I install it on another 4.8.0 version it does work so this leaves me to believe my module seems to be ok but ther is maybe something in the framework preventing the extender to work. I hope someone can point me in the right direction.

Stephan

EDIT: I found what was wrong. I added:

                if (DotNetNuke.Framework.AJAX.IsInstalled())
                {
                    DotNetNuke.Framework.AJAX.RegisterScriptManager();
                }

I don't know why it did work without it on my development web but now it works on all DNN versions.