asked on

Can't set a session variable with ajax asp.net 1.1???

Experts I am trying to set a session variable using ajax and I keep getting this error:
"Session State can only be used when the enabled session sate is set to true either in configuration file or page directive. "

I have never had this problem before setting session's its just when I try to set a session with an ajax function

<Ajax.JavascriptMethod()> _
Public Function setweekly(sval as string)
try
Session("statename") = sval
catch ex as exception
sval = ex.message
end try
return sval
End Function

tentavarious

ASKER

I tried this HttpContext.current.session("statename") = sval
But then I get this error Object not set to an instance of an object

Bob Learned

Are you talking about the Microsoft AJAX framework? Or AJAXPro?

Bob

tentavarious

ASKER

I believe its the microsoft ajax framework, but I am not real sure, where do i check?

Bob Learned

Look at the project references, and see what DLL is being referenced for the AJAX implementation.

Bob

tentavarious

ASKER

It just says AJAX

Bob Learned

Does the \bin folder have any DLL files that are related to AJAX?

Bob

tentavarious

ASKER

Just the Ajax.dll file it does say below the file name Ajax.net Wrapper. That is all I have in that folder.

Bob Learned

Ok, so now it is sounding like Ajax.NET Pro:

http://ajaxpro.schwarz-interactive.de/

Session State handling with Ajax.NET
Now, we you can access your session variables, there was a small bug.

On the server the C# method looks like following code:

[AjaxPro.AjaxMethod(AjaxPro.HttpSessionStateRequirement.ReadWrite)]
public void Test5(string value)
{
System.Web.HttpContext.Current.Session["example"] = value;
}

[AjaxPro.AjaxMethod(AjaxPro.HttpSessionStateRequirement.Read)]
public string Test6()
{
if(System.Web.HttpContext.Current.Session["example"] != null)
return (string)System.Web.HttpContext.Current.Session["example"];

return "First set the value...";
}

Bob

tentavarious

ASKER

Not sure what is going on but I keep getting this error: Object not set to an instance of an object when I try your code. I am using vb.net so I made a small change:

Try
System.Web.HttpContext.Current.Session("example") = sval
Catch ex As Exception
Dim e As String
e = ex.Message
End Try

Do i need to download an update to ajax?

tentavarious

ASKER

Ok, I dont think I have ajax pro my attribute is different from yours

<Ajax.JavascriptMethod()> _
Public Function getstation2(nameval as string)
'Gets the current pace
Dim sval As String
Try
System.Web.HttpContext.Current.Session("example") = sval
Catch ex As Exception
Dim e As String
e = ex.Message
End Try
Return sval
End Function

I tried using this attribute tag instead
<Ajax.JavascriptXmlHttp()> _

but it doesnt like that I get an error.

Bob Learned

That is why it is important to understand what version of AJAX that you are using. Without specific information, it will be very difficult to provide any guidance.

Bob

tentavarious

ASKER

Alls I know is I downloaded a free version that works with asp.net 1.1, where can I download the professional version that works with asp.net 1.1? I was doing some searching and my ajax dll file name is not the same as the professional file name, so I have no idea what version I could be using.

ASKER CERTIFIED SOLUTION

Bob Learned

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