Array trim and delete helper functions in C#.

TrimArray.cs

// TrimArray.cs
// From: https://stackoverflow.com/questions/26303030/how-can-i-delete-rows-and-columns-from-2d-array-in-c
// See: https://stackoverflow.com/questions/1183083/is-it-possible-to-extend-arrays-in-c

void Main()
{
  int[,] array = { { 1, 2, 3 }, { 4, 5, 6 }, { 7, 8, 9 } };
  array.Dump();
  var trim = TrimArray(1, 1, array);
  var trimRow = ArrayRemoveRow(2, array);
  trim.Dump();
  trimRow.Dump();
}


public static int[,] TrimArray(int rowToRemove, int columnToRemove, int[,] originalArray)
{
  int[,] result = new int[originalArray.GetLength(0) - 1, originalArray.GetLength(1) - 1];

  for (int i = 0, j = 0; i < originalArray.GetLength(0); i++)
  {
      if (i == rowToRemove)
          continue;

      for (int k = 0, u = 0; k < originalArray.GetLength(1); k++)
      {
          if (k == columnToRemove)
              continue;

          result[j, u] = originalArray[i, k];
          u++;
      }
      j++;
  }

  return result;
}

public static int[,] ArrayRemoveRow(int rowToRemove, int[,] originalArray)
{
  int[,] result = new int[originalArray.GetLength(0) - 1, originalArray.GetLength(1)];

  for (int i = 0, j = 0; i < originalArray.GetLength(0); i++)
  {
      if (i == rowToRemove)
          continue;

      for (int k = 0, u = 0; k < originalArray.GetLength(1); k++, u++)
      {
          result[j, u] = originalArray[i, k];
      }
      j++;
  }

  return result;
}