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ArgumentException when call WindowsPrincipal.IsInRole

I receive multiple (handled) ArgumentExceptions when I call
WindowsPrinciple.IsInRole. The exception text is:

A first chance exception of type 'System.ArgumentException' occurred in

Additional information: Item has already been added.
Key in dictionary: "DOMAINNAME\userGroup"
Key being added: "DOMAINNAME\userGroup"

where DOMAIN is the domain of the group I am querying for, and userGroup
seems to be each group in the domain (which is large).

My code is as follows:

//this is called when the application first starts
AppDomain.CurrentDomain.SetPrincipalPolicy(Princip alPolicy.WindowsPrincipal);

public static bool UserIsInRole(string roleName)
WindowsPrincipal principal = (WindowsPrincipal)Thread.CurrentPrincipal;
return principal.IsInRole(roleName);

The exceptions are handled, as I am only notified when I turn on the break
on all exceptions IDE option. I am using framework 1.1.

This isn't a problem as such, I am just wondering if anyone else has
experienced this.

Nov 16 '05 #1
0 1230

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