gistfile1.cs

public override void Execute(object parameter)
{
    var oldViewItem = meterTestViewModel.SelectedTestPointSequence;
    if (oldViewItem == null)
    {
        return;
    }

    var testPointSequenceCopy = oldViewItem.Save();

    var config = oldViewItem.TestPoint.TestPointConfiguration;
    var newViewItem = new TestPointSequenceViewItem
    (
        new TestPointSequence()
        {
            AcceptanceTestRevision = oldViewItem.AcceptanceTestRevision,
            Number = meterTestViewModel.SelectedAcceptanceTestRevision.TestPointSequences.Count,
            TestPoint = new TestPoint()
            {
                Name = "Kopi af " + oldViewItem.TestPoint.Name,
                Created = DateTime.Now,
                CreatedBy = UserSession.Instance.UserName,
                TestPointConfiguration = oldViewItem.TestPointConfiguration.Save()
            }
        }
    );

    var viewModel = new TestPointDialogViewModel(newViewItem, testPointRepository);

    var result = dialogService.ShowDialog<TestPointDialog>(viewModel);
    if (result == true)
    {
        var testPointSequence = newViewItem.Save();
        testPointRepository.Add(testPointSequence);
        testPointRepository.SaveChanges();

        // TODO: Update View
    }
}