Need to sort output from a multidimensional array

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vb.net 2005.
I have profitMarginArray(29,3) <29 is actually a variable, but figured I'd put in a number for the example> and what I need is to retreive elements 0 and 3 sorted on 3 in some way shape or form. The biggest problem is element 3 isn't unique so there could be 5 that have the same value (56.34 for instance) so a sorted list is out.
The current array could look something like
Item1, .34, .75, 54.67
Item2, .32, .75, 57.33
Item3, .29, .5, 42
Item4, .34, .75, 54.67

The sorted what ever needs to look like:

Item2, 57.33
Item1, 54.67
Item4, 54.67
Item3, 42

Looking for some ideas, I'll worry about the code.
Thanks in advance!!

Posted 23-Sep-11 3:58am

MacRaider4

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MacRaider4 23-Sep-11 11:42am

Thanks Guys!!!

3 solutions

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ChandraRam · Accepted Answer · 2011-09-23T05:26:00

Solution 1

If you use a collection, you can specify in the "Compare" method how you want the collection sorted. You need to look up IComparable and Compare.
HTH

Posted 23-Sep-11 5:26am

ChandraRam

André Kraak · Accepted Answer · 2011-09-23T05:29:00

Solution 2

At the bottom of this article[^] is some information about multidimensional sorting. It suggests using a jagged array to make the sorting possible.
It also has contains source code if your interested.

Posted 23-Sep-11 5:29am

André Kraak

Mehdi Gholam · Accepted Answer · 2011-09-23T05:30:00

Solution 3

Array.Sort can take a ICompare custom compare function.

Look at this link : Sorting Array of Custom Class objects

Posted 23-Sep-11 5:30am

Mehdi Gholam