public int CompareTo(ContactsData other)
{
if (Object.ReferenceEquals(other, null))
{
return(1);
}
if (Last_name.CompareTo(other.Last_name) == 0)
{
return(First_name.CompareTo(other.First_name));
}
return(Last_name.CompareTo(other.Last_name));
}
override public int GetHashCode()
{
return(User_id.GetHashCode() & First_name.GetHashCode() & Last_name.GetHashCode());
}
public override int GetHashCode()
{
return(Id.GetHashCode() & First_name.GetHashCode() & Last_name.GetHashCode());
}
public override int GetHashCode()
{
return(First_name.GetHashCode() + Last_name.GetHashCode());
}
