I trying to implement the example Launching a modal Popup window from Server code which requires the Ajax Control Toolkit. I'm using the RC 2010 Visual Studio with ASP.NET 4, which I thought had added the Ajax stuff without needing to seperately install it.
It doesn't run and the compiler complains about ajaxToolkit:ModalPopupExtender. Is ajax toolkit something separate that needs to be added to VS 2010 in addition to the built in Ajax stuff? is there a better without using the ajaxtoolkit?