KbtterWPF.AccountSelect.NewAcRegist_Click C# (CSharp) Method

        private void NewAcRegist_Click(object sender, RoutedEventArgs e)
        {
            var nsn = NewAcName.Text;
            var rt = main.Service.GetRequestToken();
            Process.Start(main.Service.GetAuthorizationUri(rt).ToString());
            var aw = new AuthorizeWindow();
            aw.ShowDialog();
            if (aw.PIN == "") return;
            var at = main.Service.GetAccessToken(rt, aw.PIN);
            if (at.ScreenName == "") return;
            al.Tokens[nsn] = at;
            al.SaveToFile("accounts.cfg");
            AccountList.Items.Add(nsn);
        }