Cast exception w FormsAuthentication

[news.microsoft.com]

I have a small ASPX app I have created and decided to roll my own Forms
Authentication. Now I take the user name, password and domain and created an
encrypted foms authentication ticket. In the ticket I put some info in the
userdata property. On a different page after authetication I want to accsess
that field. I found a couple of examples, one is like
lblLogin.Text = ((FormsIdentity)User.Identity).Ticket.UserData;

This throws an exception saying cast is not valid. I've looked at this where
the GenericPrincipal is created in the Globalasax file and I can see the
string data in the UserData, does anyone have any idea?

[Chris Jackson]

Make sure you are casing the proper unary expression:

....((FormsIdentity)(User.Identity)).Ticket.UserDa ta;

--
Chris Jackson
Software Engineer
Microsoft MVP - Windows XP
Windows XP Associate Expert
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"news.microsoft.com" <phewwee@yahoo.com> wrote in message
news:%23c0aV$ClDHA.1960@TK2MSFTNGP12.phx.gbl...

> I have a small ASPX app I have created and decided to roll my own Forms
> Authentication. Now I take the user name, password and domain and created

an

> encrypted foms authentication ticket. In the ticket I put some info in the
> userdata property. On a different page after authetication I want to

accsess

> that field. I found a couple of examples, one is like
> lblLogin.Text = ((FormsIdentity)User.Identity).Ticket.UserData;
>
> This throws an exception saying cast is not valid. I've looked at this

where

> the GenericPrincipal is created in the Globalasax file and I can see the
> string data in the UserData, does anyone have any idea?
>
>