Hi,
What is going on with AjaxControlToolkit? Every we upgrade our Visual Studio version, it just gets broken. These are the steps I took:
1) I installed the latest version via Nuget packages;
2) I created a tab in the Toolbox and added items using Toolbox "Choose Items..." menu.
3) Registered the assembly like so: <%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="ajaxToolkit" %>
4) Added a SliderExtender control.
After all that, I'm back to the same error message: :AjaxControlToolkit requires ASP.NET Ajax 4.0 scripts.
I've followed all kinds of suggestions from this site and StackOverflow and I'm glad a lot of others found solutions. But I can't get it to work on my VS2013 .NET4.5 web app project.
I'm truly in limbo and would appreciate any rescue attempts from SuperCoders out there. May the force be with y'all.
Marilyn