I downloaded the AjaxControlToolkit using nuget.exe then I tried to implement it in the project. As you can see with little success. I do not know why the system is not working properly.
Error:
Error 14 The type or namespace name 'ToolkitScriptManager' does not exist in the namespace 'AjaxControlToolkit' (are you missing an assembly reference?)
AjaxControlToolkit added to my project:
In master page I added this:
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="ajaxToolkit" %>
Picture with problem:
I try use this tutorials: http://timscyclingblog.wordpress.com/2013/03/22/ajaxcontroltoolkit-version-7-0123-with-net-4-5/
http://stephenwalther.com/archive/2012/09/20/september-2012-release-of-the-ajax-control-toolkit