This method returns a fully qualified absolute server Url which includes the protocol, server, port in addition to the server relative Url. It work like Page.ResolveUrl, but adds these to the beginning. This method is useful for generating Urls for AJAX methods

This method returns a fully qualified absolute server Url which includes the protocol, server, port in addition to the server relative Url. Works like Control.ResolveUrl including support for ~ syntax but returns an absolute URL.