How can I sort a 2d array using Linq?

Question

I have a 2d array of strings

string [] [] myArray;

and I want to sort it by one of the columns.

So the data might be

{          


        

Answer 1

you can do like this...

IEnumerable<T> AsEnumerable(this T[,] arr) {
  for(int i = 0; i < arr.GetLength(0); i++)
    for(int j = 0; j < arr.GetLength(1); j++)
      yield return arr[i, j];
}

And then write for example:

int[,] data = // get data somwhere
// After 'AsEnumerable' you can use all standard LINQ operations
var res = data.AsEnumerable().OrderBy(n => n).Reverse();

Answer 2

var myOrderedRows = myArray.OrderBy(row => row[columnIndex]);

Answer 3

Array.Sort(myArray, (p, q) => p[0].CompareTo(q[0]));

This will order the array in place (so at the end myArray will be sorted). LINQ OrderBy by comparison creates a new ordered enumerable that then you can convert to a ToArray.