public bool HasCommonLevelWith(Item other)
{
if (other == null || ContainsAHub() || other.ContainsAHub())
{
return(false);
}
return
(LevelFirst.Equals(other.LevelFirst, StringComparison.OrdinalIgnoreCase) ||
LevelSecond.Equals(other.LevelSecond, StringComparison.OrdinalIgnoreCase));
}
public bool ContainsAHub()
{
return(LevelFirst.Equals(Hub, StringComparison.OrdinalIgnoreCase) ||
LevelSecond.Equals(Hub, StringComparison.OrdinalIgnoreCase));
}