Cookies in ASP.net

Cookie : Cookie is a small key value pair which is used to store the small piece of user information.
2 types are cookies are available in asp.net.
Session Cookie and persistent cookie
Session Cookie: These are stored in in-memory during the client browser session when the browser is closed the session cookies are lost.
Ex
HttpCookie sCookie=New HttpCookie("uname","Anji");
Response.cookies.add(sCookie);

//Code to read the cookie
string name= Request.cookies["uname"].value;

Persistent cookies are same as session cookies except that persistent cookies have an expiration date.These are generally used to store info that identifies a returning user to web site like user name or logid.

Creation of persistent cookies
HttpCookie pCookie=New HttpCookie("uname","Anji");
pCookie.Expires=DateTime.Now.AddDays(10);
Response.cookies.add(pCookie);


Cookie Dictionary : It is a single cookie object which can store multiple pieces of information You can use values properties to access and assign new values to cookiedictionary.

Advantages:
Easy to implement.
Does not require server resources.

Dis Advantages:
User can delete the cookie.
Browser can refuse the cookies.
Cookies are not secure.
Any one can view your cookie data once he logged in into your machine.