Hi there,
How can I check if session variable exists in asp, I know how to access it and check its´ contents but not whether it exists or not.
Also anybody know if there is an easy way to check whether a browsers cookies are enabled in asp.
Any help would be great
Cheers
Williery
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You can check that in client side using JavaScript
<script language="JavaScript">
<!--
// cookies is enabled
if ( navigator.cookieEnabled )
{
}
// cookies is not enabled
else
{
}
//-->
</script>
Another good reference is here
http://www.cyscape.com/sho
hongjun
OR This
2 ways:
<%
' at the top of the script
Response.Buffer = True
' set test cookie
Response.Cookies("TestCook
%>
<html>
<body>
<script language=javascript>
// script needs to be in the body
blnCookieAccepted = false
// get cookie
var testcookie = document.cookie
if (testcookie != null) blnCookieAccepted = (testcookie.indexOf("TestC
// if cookies are not accepted, redirect
if (!blnCookieAccepted) document.location.href = "PleaseAcceptCookies.asp"
</script>
</body>
</html>
Server side code:
<%@ LANGUAGE="VBSCRIPT" %>
<%
'Response.Buffer = true
response.cookies("pippo") = "test"
response.cookies("pippo").
cCheck = request.cookies("pippo")
Response.Write "CC:" & cCheck
%>
hongjun
this is an improved (faster) function to check if a SessionVariable exists:
Function CheckSession(strToCheck)
CheckSession = False
If Not IsEmpty(Session(strToCheck
End Function
A non-initialized Session-varaiable is "Empty"
The result is a bit different then the function hongjun proposes.
<%
Session("test") = "test"
' now Session("test") exists according to both functions
Session("test") = Empty
' Session("test") will still exists in hongjun's proposal, but will not exist in my proposal
%>
Business Accounts
Answer for Membership
by: hongjunPosted on 2003-06-14 at 04:52:53ID: 8723404
Try this simple example
<%
session("Name") = "Hello"
session("Password") = "world"
dim blnExist
blnExist = CheckSession("Name")
if blnExist then
Response.Write "Exist"
else
Response.Write "Not Exist"
end if
function CheckSession(strToCheck)
dim strName
CheckSession = false
for each strName in Session.Contents
if UCase(strName) = UCase(strToCheck) then
CheckSession = true
exit for
end if
next
end function
%>
hongjun