Retrieving cookie value data

Question

User-600945157 posted

hi,

My web application creates a number of cookies on a button click within a device list (generated by a listview), these cookies contain some data and are created successfully, using the below code

HttpCookie cookie = new HttpCookie(DeviceNo);

This means that each cookie created is given the name of the items Device number, so all cookies have a different name 

The issue i am having is retrieving the cookies 

The code used to retrieve the cookie data is;

            if (Request.Cookies["cookie"] != null)
            {
                var cookie = Request.Cookies["cookie"].Value;
                Quote.Text = Environment.NewLine + cookie;
            }

This code returns no data, however if i change "Request.Cookies["cookie"] to "Request.Cookies["nameOfIndividualCookie"]" Then i am able to get the data from that individual cookie.

Is there any way to gather the data from all cookies which are created using "HttpCookie cookie = new HttpCookie(DeviceNo);" section of code?

Many thanks

Answer 1

User-760709272 posted

You can use individual values inside a single cookie

Response.Cookies["MyData"]["device1"] ....

Response.Cookies["MyData"]["device2"] ....

use similar code to read them back

Answer 2

User475983607 posted

IMHO, it's better to name cookies.  Here's how to enumerate over the cookie collection.  The code sample assumes you have a label1 control on the page to hold the results.

        protected void PrintCookiesData()
        {
            StringBuilder sb = new StringBuilder();
            HttpCookieCollection cookieCollection =  Request.Cookies;
            foreach (string key in cookieCollection.Keys)
            {
                sb.Append("Cookie retrieved from client. <br/>");
                sb.Append("Cookie Name: " + cookieCollection[key].Name + "<br/>");
                sb.Append("Cookie Value: " + cookieCollection[key].Value + "<br/>");
                sb.Append("Cookie Expiration Date: " +
                cookieCollection[key].Expires.ToString() + "<br/>");
            }
            Label1.Text = sb.ToString();
        }

Answer 3

User2008642861 posted

Hi Martin91,

As mgebhard said, you'd better to use below code to get your data.

Request.Cookies.Get("DateCookieExample");

In the MSDN's library, it has shown you an example to refer. 

For more information, I suggest that you could refer to below link.

https://msdn.microsoft.com/en-us/library/system.web.httpcookie%28v=vs.90%29.aspx

Hope it's helpful to you.

Best regards,

Archer

Answer 4

User-600945157 posted

Hi, 

Thanks for the replies, Im still having issues with this. Apologies if i am repeating here, each time a cookie is created it is given the name of the Device Number which is held in a database. This means there are hundreds of possible names which could be given to the cookies (however it is highly unlikely a customer would create more than 10 cookies when using the site, the cookies are set to last 1 hour and would be expired when the user submits the quote).

If when the cookies are created, can they be added to a cookie collection, which can then be retrieved  using the Request.Cookies method? 

//create cookie
HttpCookie cookie = new HttpCookie(PartNo);

//add the cookie
Response.Cookies.Add(cookie);

Answer 5

User2008642861 posted

Hi Martin91，

As far as I know, you could use HttpRequest.Cookies Property. This property gets a collection of cookies sent by the client.

For more information, please refer to the below link.

https://msdn.microsoft.com/en-us/library/system.web.httprequest.cookies(v=vs.110).aspx

Also, for the Request.Cookies Collection, I suggest that you could refer to the below link.

https://msdn.microsoft.com/en-us/library/ms525394(v=vs.90).aspx

Best regards,

Archer