private void buttonAddCamera_Click(object sender, RoutedEventArgs e) { if (!NoConnection.IsVisible) //There is a connection { try { int index = comboBoxParkingLot.SelectedIndex + 1; string url = textBoxCameraURL.Text.Trim(); //Update parking lots camera url svm.UpdateCameraURL(index, url); RefreshDataASync(); } catch (ArgumentOutOfRangeException ex) { }; } }