GetFullPictureUrl.txt

 public static string GetFullPictureUrl(Guid? guid)
        {
            if (guid == null)
            {
                guid = Guid.Empty;
            }
            return ResolveServerUrl(System.Web.VirtualPathUtility.ToAbsolute("~/home/picture/" + guid.ToString()), false);
        }
        
        
         public static string ResolveServerUrl(string serverUrl, bool forceHttps)
        {
            if (serverUrl.IndexOf("://") > -1)
                return serverUrl;

            string newUrl = serverUrl;
            Uri originalUri = System.Web.HttpContext.Current.Request.Url;
            newUrl = (forceHttps ? "https" : originalUri.Scheme) +
                "://" + originalUri.Authority + newUrl;
            return newUrl;
        }