/// <summary>
/// Gets the hash code
/// </summary>
/// <returns>Returns HashCode</returns>
public override int GetHashCode()
{
return(String.Format("{0}|{1}",
Owners.Aggregate(0, (acc, next) => acc += (next != null ? next.GetHashCode() : 0)),
Members.Aggregate(0, (acc, next) => acc += (next != null ? next.GetHashCode() : 0))
).GetHashCode());
}