public bool Contains(string searchKeyword)
{
string lowerSearchKeyword = searchKeyword.ToLower();
return(Description.ToLower().Contains(lowerSearchKeyword) ||
WhenList.Any(when => when.ToLower().Contains(lowerSearchKeyword)) ||
ThenList.Any(then => then.Description.ToLower().Contains(lowerSearchKeyword)) ||
Children.Any(child => child.Contains(lowerSearchKeyword)));
}
public bool IsEmpty()
{
return(!WhenList.Any() && !ThenList.Any() && Children.All(c => c.IsEmpty()));
}