How to sort a list of int[,]'s by the first value of each array.

Questions & Answers
1

I’m trying to sort a list of int[,]'s by the first value of each array(int[0,0]). I thought I finally had it but now when I check the log, I keep getting the same value for each entry in the list. What am I doing wrong?

			position[0,0] = pair.Value.column;
			position[0,1] = pair.Value.row;
			positionList.Add(position);
			positionList.Sort((a, b) => a[0,0].CompareTo(b[0,0]));
3

For sort object in your case applied OrderBy() from System.Linq. I write small example(write on CSharp):

 using UnityEngine;
 using System.Collections;
 using System.Collections.Generic;
 using System.Linq;

 public class ListTest: MonoBehaviour {

  public List<int[,]> myList = new List<int[,]>();

  void Start() {
   //Create int[,] array and add it into list
   int[,] tp = new int[1, 2];
   tp[0, 0] = 2;
   tp[0, 1] = 3;
   myList.Add(tp);
   tp = new int[1, 2];
   tp[0, 0] = 1;
   tp[0, 1] = 4;
   myList.Add(tp);
   //And sorting
   myList = myList.OrderBy(x=>x[0, 0]).ToList();
   //And see
   for(int i = 0; i < myList.Count; i++) {
    Debug.Log("Element is " + i + " is [0, 0] = " + (myList*)[0, 0]);*

}
}
}
I hope that it will help you.
P.S.: If you want use method Sort, than instead line
myList = myList.OrderBy(x=>x[0, 0]).ToList();
Write this code:
myList.Sort(delegate(int[,] a, int[,] b) {
return a[0, 0].CompareTo(b[0, 0]);
});

2

You could try using the sort function, here is a detailed example how to do it, it should be applicable to your script:

Sorting an Array of GameObjects by values inside these GOs