在WinForm中通过HTTP协议向服务器端上传文件

在WinForm中通过HTTP协议向服务器端上传文件(15)     loFile.Read(lcFile,0,(int) loFile.Length);
    loFile.Close();
   }
   catch(Exception e)
   {
    this.cErrorMsg = e.Message;
    this.bError = true;
    return false;
   }

   this.oPostData.Write( Encoding.GetEncoding(1252).GetBytes(
     "--" + this.cMultiPartBoundary + "\r\n"  +
     "Content-Disposition: form-data; name=\"" + Key + "\" filename=\"" +
     new FileInfo(FileName).Name + "\"\r\n\r\n") );

   this.oPostData.Write( lcFile );

   this.oPostData.Write( Encoding.GetEncoding(1252).GetBytes("\r\n")) ;

   return true;
  }

  /// <summary>
  /// Return a the result from an HTTP Url into a StreamReader.
  /// Client code should call Close() on the returned object when done reading.
  /// </summary>
  /// <param name="Url">Url to retrieve.</param>
  /// <param name="WebRequest">An HttpWebRequest object that can be passed in with properties preset.</param>
  /// <returns></returns>
  protected StreamReader GetUrlStream(string Url,HttpWebRequest Request)
  {
   try
   {
    this.bError = false;
    this.cErrorMsg = "";

    if (Request == null)
    {
     Request =  (HttpWebRequest) System.net.WebRequest.Create(Url);
    }