private void lstCust_SelectionChanged(object sender, SelectionChangedEventArgs e) { if (lstCust.SelectedItem != null) { Cust cust = (Cust)lstCust.SelectedItem; this.Title = cust.strCustName; } else { MessageBox.Show("고객을 먼저 선택해주세요!!"); } }
private void btnSelectCust_Click(object sender, RoutedEventArgs e) { if (lstCust.SelectedItem != null) { Cust cust = (Cust)lstCust.SelectedItem; MessageBox.Show(cust.strCustName + "님의 전화번호는 " + cust.strCustTel + "입니다."); } else { MessageBox.Show("고객을 먼저 선택해주세요!!"); } }