private void OldVersion_LostFocus(object sender, RoutedEventArgs e) { if (selectedProjectProduct == null) { return; } bool success = ProjectFunctions.AmendOldVersion(selectedProjectProduct, OldVersion.Text, (editMode == ByProject)); if (success) { refreshEditPage(); CommitButton.IsEnabled = true; } else { OldVersion.Text = selectedProjectProduct.OldVersion.ToString("#0.0"); } }