WebClient中DownloadStringCompleted 下载的字符串，中文显示乱码解决方法

WebClient中DownloadStringCompleted 下载的字符串，中文显示乱码
public void intiWebClient( string setstrRui)
  {
  //服务端返回信息后
  WebClient webClient = new WebClient();
  webClient.Encoding = Encoding.UTF8;
  webClient.DownloadStringCompleted += new DownloadStringCompletedEventHandler(webClient_DownloadStringCompleted);
  webClient.DownloadStringAsync(new Uri(setstrRui));
}

  //下载之后执行的操作
  void webClient_DownloadStringCompleted(object sender, DownloadStringCompletedEventArgs e)
  {
  string result = e.Result;
  Encoding utf8 = Encoding.UTF8;
  byte[] utf8Bytes = utf8.GetBytes(result);

  string dd = System.Text.Encoding.GetEncoding("gb2312 ").GetString(utf8Bytes, 0, utf8Bytes.Length);
  getnewsItem = JsonConvert.DeserializeObject<NewsItem>(result);//序列化json
  }
  }



------解决方案--------------------
不要设置转码，直接下载就行了哈。
------解决方案--------------------
那你检查你下载之前的字符集是否正确。
------解决方案--------------------
我也遇到同样问题,帮顶!!文件一般都是utf-8格式