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HttpRequest.Cookies Property

Updated: April 2009

Gets a collection of cookies sent by the client.

Namespace:  System.Web
Assembly:  System.Web (in System.Web.dll)

'Declaration
Public ReadOnly Property Cookies As HttpCookieCollection
'Usage
Dim instance As HttpRequest 
Dim value As HttpCookieCollection 

value = instance.Cookies

Property Value

Type: System.Web.HttpCookieCollection
An HttpCookieCollection object representing the client's cookie variables.

ASP.NET includes two intrinsic cookie collections. The collection accessed through the Cookies collection of HttpRequest contains cookies transmitted by the client to the server in the Cookie header. The collection accessed through the Cookies collection of HttpResponse contains new cookies created on the server and transmitted to the client in the Set-Cookie header.

NoteNote:

After you add a cookie by using the HttpResponse.Cookies collection, the cookie is immediately available in the HttpRequest.Cookies collection, even if the response has not been sent to the client.

TopicLocation
How to: Read a CookieBuilding ASP .NET Web Applications
How to: Read a CookieBuilding ASP .NET Web Applications

The following code example loops through all cookies sent by the client and sends the name, expiration date, security parameter, and values of each cookie to the HTTP output.

Dim loop1, loop2 As Integer 
Dim arr1(), arr2() As String 
Dim MyCookieColl As HttpCookieCollection 
Dim MyCookie As HttpCookie

MyCookieColl = Request.Cookies
' Capture all cookie names into a string array.
arr1 = MyCookieColl.AllKeys
' Grab individual cookie objects by cookie name     
for loop1 = 0 To arr1.GetUpperBound(0)
   MyCookie = MyCookieColl(arr1(loop1))
   Response.Write("Cookie: " & MyCookie.Name & "<br>")
           Response.Write("Secure:" & MyCookie.Secure & "<br>")

   ' Grab all values for single cookie into an object array.
   arr2 = MyCookie.Values.AllKeys
   ' Loop through cookie value collection and print all values.
   for loop2 = 0 To arr2.GetUpperBound(0)
      Response.Write("Value " & CStr(loop2) + ": " & Server.HtmlEncode(arr2(loop2)) & "<br>")
   Next loop2
Next loop1

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0

Date

History

Reason

April 2009

Added explanation that cookies are available in the HttpRequest object immediately after you add them to the HttpResponse object.

Customer feedback.

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