private void changeText_test(object sender, RoutedEventArgs e) { int urlType = 5; if ((Boolean)lengthFive.IsChecked) { urlType = 5; } if ((Boolean)lengthSix.IsChecked) { urlType = 6; } if ((Boolean)lengthSeven.IsChecked) { urlType = 7; } RID test = new RID(); string test1 = RID.GenerateString(urlType); this.textBox1.Text = test1; }