利用WebClient获取远程数据（仅做备份）

public DataSet GetData(string httpUrl)
              {
                     string xmlPath = @"http地址"; // 该地址不能包含中文
                     DataSet ds = new DataSet();
                     WebClient wc = new WebClient();
                     byte[] bt = wc***wnloadData(xmlPath); 
                     XmlDocument xd = new XmlDocument();

                     string source = Byte2String(bt);

                     xd***adXml(source);

                     XmlNodeReader xnr = new XmlNodeReader(xd);

                     ds***adXml(xnr);

                     DataTable dt = ds***bles[0];

                     th***DataGrid1.DataSource = ds;

                     th***DataGrid1.DataBind();
  

                     return ds;  

              }

              public static string Byte2String(byte[] bt)

              {

                     Sy***m.Text.Encoding encoding = Sy***m.Text.Encoding.GetEncoding("gb2312");

                     string str = en***ing.GetString(bt);

                     return str;

              }

       
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