Custom Sorting (IComparer on three fields)

Question

I have a person class with three fields, Title, Name, Gender and I would like to create a Custom Sort for it to sort it first by Title, then by Name and then by Gender ascending:

public class SortPerson : IComparer     {         public int Compare(object x, object y)         {             (…)         }     } 

I know how to do this for only one variable to compare against: But How would I have to proceed with three?

public class SortPerson : IComparer         {  int IComparer.Compare(object a, object b)    {       Person p1=(Person)a;       Person p2=(Person)b;       if (p1.Title > p2.Title)          return 1;       if (p1.Title < p2.Title)          return -1;       else          return 0;    } } 

Many Thanks,

Answer 1

//Assuming all the fields implement IComparable int result = a.field1.CompareTo(b.field1); if (result == 0)   result = a.field2.CompareTo(b.field2); if (result == 0)   result = a.field3.CompareTo(b.field3); return result;