System.IO.IsolatedStorage.IsolatedStorageFile.VerifyGlobalScope C# (CSharp) Method

        private static void VerifyGlobalScope(IsolatedStorageScope scope)
        {
            if ((scope != IsolatedStorageScope.User) &&
                (scope != (IsolatedStorageScope.User |
                          IsolatedStorageScope.Roaming)) &&
                (scope != IsolatedStorageScope.Machine))
            {
                throw new ArgumentException(SR.IsolatedStorage_Scope_U_R_M);
            }
        }