System.Web :
The System.Web namespace contains the important base level ingredients for
ASP.NET applications. This namespace includes classes for our important primary
objects.
This namespace has following built-in
Objects :
1) Request
2) Response
3) Server
4) Application
And following important managing
Classes for:
1) Web server and Client browser related
informaion retrival
2) Configuring page caching
3) Tracing implementation
4) Cookies
System.Web namespace is an
important base for Web Form user interface and web services.
Use of Built-in Objects like
Request and Response are very common and widely used. We directly write them
without creating objects as they are built-in objects.
Ex.
1 using System;
2 using
System.Collections.Generic;
3 using System.Linq;
4 using
System.Web;
5 using System.Web.UI;
6 using
System.Web.UI.WebControls;
7
8 namespace WebApplication1
9 {
10
public partial class WebForm1 : System.Web.UI.Page
11
{
12
protected void Page_Load(object sender, EventArgs e)
13
{
14
if (!IsPostBack)
15
{
16
if ( string.IsNullOrEmpty(Request.QueryString["queryStringName"]) )
17
{
18
if ( Convert.ToString(Request.QueryString["queryStringName"]).Equals( "queryValue" ) )
19
{
20
// do this
21
// and do that
22
Response.Write("Response is
built-in object under Syste.Web namespace.");
23
}
24
}
25
}
26
}
27
}
28 }