The program of the Foreigner (ii)--system.net sample program

Program | sample using System;
Using System.Net;
Using System.Text;
Using System.Collections.Specialized;

public class Webclientsample
{
public static void Main ()
{
try {

Download the data to a buffer
WebClient client = new WebClient ();

byte[] Pagedata = client. Downloaddata ("http://www.microsoft.com");
String pagehtml = Encoding.ASCII.GetString (pagedata);
Console.WriteLine (pagehtml);

Download the data to a file
Client. DownloadFile ("http://www.bn.com", "page.htm");

Upload some form post values
NameValueCollection form = new NameValueCollection ();
Form. ADD ("MyName", "myvalue");
byte[] ResponseData = client. UploadValues ("http://localhost/somefile.aspx", form);

}
catch (WebException webEx) {
Console.WriteLine (Webex.tostring ());
if (Webex.status = = webexceptionstatus.connectfailure) {
Console.WriteLine ("Are You behind a firewall?" If So, go through the proxy server. ");
}
}
}
}