/// <summary> /// register a new person base on the input fields /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void SubmitButton_Click(Object sender, RoutedEventArgs e) { //check the information inputed if (int.TryParse(IdInputField.Text, out var id) && !string.IsNullOrWhiteSpace(NameInputField.Text)) { //try to register if (SheetsAPI.register(id, NameInputField.Text)) { //login new Task(() => SheetsAPI.Login(id)).Start(); NameInputField.Text = ""; IdInputField.Text = ""; MessageBox.Show("User added successfully", "Login suc", MessageBoxButton.OK); } } }