codetoad.com
  ASP Shopping CartForum & BBS
  - all for $20 from CodeToad Plus!
  
  Home || ASP | ASP.Net | C++/C# | DHTML | HTML | Java | Javascript | Perl | VB | XML || CodeToad Plus! || Forums || RAM 
Search Site:



Home » ASP » Article

Using Cookies in ASP.NET

Article by: Robin Smith (6/25/2002)
Bookmark us now! Add to Favourites
Email a friend!Tell a friend
Summary: This tutorial takes you through the basics of using cookies in ASP.NET
Viewed: 259710 times Rating (154 votes): 
 3 out of 5
 Rate this Article  Read Comments  Post Comments


Using Cookies in ASP.NET



A cookie is stored on the client's machine by their web browser software. To set a cookie, we include information in an HttpResponse that instructs the browser to save a cookie on the client's system. Here's the basic code for writing a Cookie in ASP.NET

Using System.Web;

Response.Cookies["BackgroundColor"].Value = "Red";


And to read the cookie back :

Response.Write
(Request.Cookies["BackgroundColor"].Value);


Note that for security reasons you can only read a cookie that was set within the same domain name.

Sometimes you may need a collection of stored items, such as user address details. In this case you could read in a cookie collection like this:

HttpCookieCollection cookies = Request.Cookies;
for(int n=0;n<cookies.Count;n++)
{
    HttpCookie cookie = cookies[n];
    Response.Write("<hr/>Name: <b>" + cookie.Name + "</b><br />");
    Response.Write("Expiry: " + cookie.Expires + "<br />");
    Response.Write("Address1: " + cookie.Address1+ "<br />");
    Response.Write("Address2: " + cookie.Address2+ "<br />");
    Response.Write("City: " + cookie.City+ "<br />");
    Response.Write("Zip: " + cookie.Zip+ "<br />");
}


Finally, you can see details of cookies during development, by turning on tracing in ASP.NET. Within the @Page directive at the start of the page simply add Trace="true" :

<%@ Page trace="true" language="c#" Codebehind="page.aspx.cs" Inherits="MyPage" %>








Useful Links


CodeToad Experts

Can't find the answer?
Our Site experts are answering questions for free in the CodeToad forums
Rate this article:     Poor Excellent
View highlighted Comments
User Comments on 'Using Cookies in ASP.NET'
RELATED ARTICLES
ASP FilesystemObject
by Jeff Anderson
An introduction to the Filesystemobject
ASP GetTempName
by Jeff Anderson
Use the GetTempName method to create a randomly generated temporary file on the server.
ASP Format Date and Time Script
by Jeff Anderson
An ASP script showing the variety of date and time formats possible using the FormatDateTime Function.
ASP OpenTextFile
by Jeff Anderson
An introduction to the OpenTextFile Method of the FileSystemObject
Email validation using Regular Expression
by Jeff Anderson
Using regular expression syntax is an exellent way to thoroughly validate an email. It's possible in ASP.
Add or Subtract Hours in SQL or ASP using DateAdd
by Jeff Anderson
A beginners guide to using the SQL DATEADD function to add or subtract hours. Particularly useful when setting the time displayed on the ASP page to a different time zone (eg when the server is in the US, and the site is for a UK audience).
The asp:radiobutton and asp:radiobuttonlist control
by David Sussman, et al
In HTML, radio buttons are used when we need to make multiple sets of choices available, but we want the user to select only one of them.
The asp:checkbox and asp:checkboxlist control
by David Sussman, et al
Checkboxes are similar to radio buttons, and in HTML, they were used to allow multiple choices from a group of buttons.
ASP FileExists
by Jeff Anderson
An introduction to the FileExistsMethod of the FileSystemObject
Concatenate strings in sql
by Jeff Anderson
A brief introduction to concatenating strings in an sql query (using SQL server or access databases).








Recent Forum Threads
• Run a program both on windows and linux
• VERO.SurfCAM.v2014
• Schlumberger.Petrel.V2013.2
• Petrel.V2013.2
• Altair.HyperWorks.v12
• VoluMill.v6.1
• VoluMill.NEXION.6
• VERO.SurfCAM.v2014
• Schlumberger.Petrel.V2013.2


Recent Articles
ASP GetTempName
Decode and Encode UTF-8
ASP GetFile
ASP FolderExists
ASP FileExists
ASP OpenTextFile
ASP FilesystemObject
ASP CreateFolder
ASP CreateTextFile
Javascript Get Selected Text


© Copyright codetoad.com 2001-2014