Read browser cookie using C#.Net,Asp.Net

M B

10y18.9k.NET

Hi Team,

I have a requirement in my application that i need to read a cookie from the browser which is created by the other application.

I am not able to read the cookie value.I used the below code to read all the cookies in browser. But, i couldn't get the cookie that i am looking for.

HttpCookie cookie = Request.Cookies["cookiename"];

//Check to make sure the cookie exists

if (cookie != null)

{

//Write the cookie value

String strCookieValue = cookie.Value.ToString();

//lblCookie.Text = "The cookie contains: " + strCookieValue + "";

}

please Help

5 Replies

Know the answer? Post it — somebody with the same question will find it here.

Vivek Kumar10y ago
Yeah, My answer is same as Rahul Chavan
+1
Rahul Chavan10y ago
You can't read cookies from another domain (Cross domain).
That is the only reason you are not able to get cookie value. You can only access cookie values from the application (domain) created by you.
+1
Shakti Singh Dulawat10y ago
Please share your full code
+1
M B10y ago
I have tried:

if (Request.Cookies["CookieName"] != null)
CookieValue = Request.Cookies["CookieName"].Value;

but I am not able to read the cookie value.
0
Shakti Singh Dulawat10y ago
To create new cookie or save existing cookie, use this code:
[ C# ]

Response.Cookies["CookieName"].Value = "CookieValue";
// Cookies are temporally files, so you need to set how long cookie will be present on client hard disk before it is deleted
Response.Cookies["CookieName"].Expires = DateTime.Now.AddDays(100);

[ VB.NET ]

Response.Cookies("CookieName").Value = "CookieValue"
' Cookies are temporally files, so you need to set how long cookie will be present on client hard disk before it is deleted
Response.Cookies("CookieName").Expires = Now.AddDays(100)

To read cookie, you can use this code:

[ C# ]

// check if cookie exists
if(Request.Cookies["CookieName"] != null)
CookieValue = Request.Cookies["CookieName"].Value;

[ VB.NET ]

' Check if cookie exists
If Not Request.Cookies("CookieName") Is Nothing Then
CookieValue = Request.Cookies("CookieName").Value
End If
+1