解决wp7 WebBrowser 乱码问题

webBrowser.NavigateToString(ConvertExtendedASCII(htmlString));

       

 privatestring ConvertExtendedASCII(string htmlString)

        {

            StringBuilder sb =new StringBuilder();

           char[] s = htmlString.ToCharArray();

           foreach (char c in s)

            {

               if (System.Convert.ToInt32(c) > 127)

                {

                    sb.AppendFormat("&#{0};", System.Convert.ToInt32(c));

                }

               else

                {

                    sb.Append(c);

                }

            }

           return sb.ToString();

        }

ps:求更高效率