Question

I am trying to arrange this multidimensional array to ascending or descending. However, I need the relation between column 1 and 2 to still be together(meaning I need the data of eg. array[0,1] and array[0,2] to be together or related in some way or another. This are my codes as of right now.

int[,] time = new int[5,2]{{0,4},{1,5},{5,10},{3,4},{0,2}};
var sorted = from x in Enumerable.Range(0, time.GetLength(0))
                     from y in Enumerable.Range(0, time.GetLength(1))
                     select new{
                         X = x,
                         Y = y,
                         Value = time[x,y]
                    }into point
                    orderby point.Value descending
                    select point;

This works but it splits all my data apart. Is there a way to sort them while keeping the relation of column 1 and 2 together?

Answer 1

It sounds like you want to store your data in a multi-dimensional array, but keep each row in the array as a separate atomic unit. And additionally, the comparison of each “point” is by X, and then Y.

int[,] time = new int[5, 2] { { 0, 4 }, { 1, 5 }, { 5, 10 }, { 3, 4 }, { 0, 2 } };

var sorted = from x in Enumerable.Range(0, time.GetLength(0))
                     select new Point()
                     {
                         X = time[x,0],
                         Y = time[x,1]
                     } into point
                     orderby point.X ascending , point.Y ascending 
                     select point;

int[,] sortedTime = new int[5,2];
int index = 0;
foreach (var testPoint in sorted)
{
  Point aPoint = (Point) testPoint;
  sortedTime.SetValue(aPoint.X, index, 0);
  sortedTime.SetValue(aPoint.Y, index, 1);

  index++;
}