public void Delete()
{
if (_viewModel.SelectedItem == null)
{
return;
}
if (MessageWindow.ConfirmDeleteRecord() == MessageBoxResult.Yes)
{
_viewModel.SelectedItem.Destroy();
_lookup.Remove(_lookup.FirstOrDefault(item => item.ID == _viewModel.SelectedItem.ID));
_viewModel.Collection.Remove(_viewModel.SelectedItem);
}
}