Cookies

A cookie is a small amount of data stored either in a text file on the client's file system or in-memory in the client browser session. Cookies are mainly used for tracking data settings. Let’s take an example: say we want to customize a welcome web page, when the user request the default web page, the application first to detect if the user has logined before, we can retrieve the user informatin from cookies:
[c#]
if (Request.Cookies[“username”]!=null)
lbMessage.text=”Dear “+Request.Cookies[“username”].Value+”, Welcome shopping here!”;
else
lbMessage.text=”Welcome shopping here!”;

If you want to store client’s information, you can use the following code:
[c#]
Response.Cookies[“username’].Value=username;

So next time when the user request the web page, you can easily recongnize the user again.