public int CompareTo(BillTracker other)
{
if (other == null)
{
return(1);
}
else
{
return(CompanyName.CompareTo(other.CompanyName));
}
}
public int CompareTo(Object obj) //implementation of CompareTo
{ // for IComparable
Company other = (Company)obj;
return(CompanyName.CompareTo(other.CompanyName)); //uses CompanyName for comparison
}