Request.QueryString : Request « Page Lifecycle « ASP.NET Tutorial
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<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="Search" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>Search Page</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<h1>Search</h1>
You have successfully redirected to the search page.
Your search string was <em><asp:Label ID="labSearch" runat="server" /></em>
</div>
</form>
</body>
</html>
File: Default.aspx.cs
using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
public partial class Search : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
labSearch.Text = (string)Request.QueryString["search"];
}
}