/// <summary> /// Gets the absolute root /// </summary> public static Uri AbsoluteWebRoot {     get  www.1sucai.cn     {         var context = HttpContext.Current;         UriBuilder uri = new UriBuilder();         uri.Host = context.Request.Url.Host;         if (!context.Request.Url.IsDefaultPort)         {             uri.Port = context.Request.Url.Port;         }         uri.Path = VirtualPathUtility.ToAbsolute("~/");         Uri absoluteWebRoot = uri.Uri;         return absoluteWebRoot;     } }