Query Strings

A query string is a string appended to a URI with a question mark.

A query string is used to send simple data to the server.

You can specify multiple key/value pairs in a query string with the following syntax:

 

?key1=value1&key2=value2&key3=value3...

WebClient provides an easy way to add query strings through a dictionary-style property.


using System;
using System.Net;
using System.Threading;

class ThreadTest
{
    static void Main()
    {
        WebClient wc = new WebClient();
        wc.Proxy = null;
        wc.QueryString.Add("q", "WebClient"); // Search for "WebClient" \
        wc.QueryString.Add("hl", "fr"); // Display page in French 
        wc.DownloadFile("http://www.google.com/search", "results.html"); 
        System.Diagnostics.Process.Start("results.html");

    }

}

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