AJAXToolKit中的AlwaysVisibleControl

ASP.NET AJAX Control Toolkit Website Project ======================================================== You're now ready to start using the AJAX Control Toolkit. This project is ready to use. To use an AJAX Control Toolkit control, use the "ajaxToolkit" prefix. Example: <ajaxToolkit:ConfirmButtonExtender /> To learn more about the AJAX Control Toolkit, visit: http://ajax.asp.net/ajaxtoolkit/