SetThreadPrincipal()

void System.AppDomain.SetThreadPrincipal ( IPrincipal principal )

inline

Definition at line 394 of file AppDomain.cs.

    {
        if (principal == null)
        {
            throw new ArgumentNullException("principal");
        }
        if (Interlocked.CompareExchange(ref _defaultPrincipal, principal, null) != null)
        {
            throw new SystemException(SR.AppDomain_Policy_PrincipalTwice);
        }
    }

References System.AppDomain._defaultPrincipal, System.SR.AppDomain_Policy_PrincipalTwice, and System.Threading.Interlocked.CompareExchange().