How to sort multi-dimensional array?

[Dimon]

Hi there,
I need to sort multi-dimensional array by two columns. I.e. I have the following:

a b c
-----------
1 12 1
0 10 2
1 10 3
1 15 4
0 14 5

So the result should look like this:

a b c
-----------
1 15 4
1 12 1
1 10 3
0 14 5
0 10 2

As you can see I need to order it in descending order by column A first and then by column B so that column C should still be mapped appropriately.

When I had just 2 columns (B and C) it was pretty easy to do:

Hashtable HTPreferenceOrder = new Hashtable();
//next line is in loop
HTPreferenceOrder.Add(B,C);
//end loop
int count= HTPreferenceOrder .Count;
int[] B= new int[count];
int[] C= new int[count];
HTPreferenceOrder.Keys.CopyTo(B,0);
HTPreferenceOrder.Values.CopyTo(C, 0);
Array.Sort(B, C);
Array.Reverse(C);

That's it. I got column C in descending order like i wanted it to be. But now i had to add column A and sort by it first. Please help, need to do it ASAP.

Thanks in advance.

[kenobewan]

Have you tried doing the same with column A?

[Dimon]

Have you tried doing the same with column A?

Do what with column A? I can't do it with column A because i need it to be sorted by column A and column B and so column C is still mapped appropriately.