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How do you create and delete a permanent cookie


Posted Date: 20 Jun 2008    Resource Type: Tips    Category: Web Development
Author: Gaurav AgrawalMember Level: Silver    
Rating: Points: 4



Permanent Cookie:-

If we want to make a cookie permanent then we have to set the Expires property of the cookie to maximum value of the datatime class.

Example


HttpCookie cookie = new HttpCookie();
cookie1.Expires = System.DateTime.MaxValue;


Now the cookie will be stored in the client machine for a long time.
System.DateTime.MaxValue retrive the maximum value of the datatime from the user's machine.

Delete a Permanent cookie-->

If we want to delete a permanent cookie then we have to set the Expires property of the cookie to previous date because there is not any method provided by the .Net framework to directly delete a cookie.

Example:==
if we want to delete above permanent cookie then we need to do


cookie1.Expires = System.DateTime.Now.AddDays(-1);


Here we have set the Expires property to previous day.So it will remove from
the client machine automatically.



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