private void btnKhachHang_Click(object sender, RoutedEventArgs e) { if (ucKhachHang == null) { ucKhachHang = new UserControlLibrary.UCKhachHang(mTransit); } spNoiDung.Children.Clear(); spNoiDung.Children.Add(ucKhachHang); }
private void btnKhachHang_Click(object sender, RoutedEventArgs e) { if (ucKhachHang == null) { ucKhachHang = new UserControlLibrary.UCKhachHang(mTransit); } spNoiDung.Children.Clear(); spNoiDung.Children.Add(ucKhachHang); }