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Sorting with a second sort parameter

Wednesday, 11th November 2009 2:25pm
Its fairly common that I need to sort a list in C# with a second sort parameter when the first sort parameter is equal.

Its easier maybe to explain this with an example. Say I have list of Member objects with first name, last name and postcode and I am sorting on last name but would like to sort on first name if there two people with the same last name.

So assuming class Member, I would go like this:


List member = new List();

member.Sort(
delegate(Member member1, Member member2)
{
if (member1.LastName == member2.LastName)
return member1.FirstName.CompareTo(member2.FirstName);
else
return member1.LastName.CompareTo(member2.LastName);
});


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