Two Dimensional Array

Question

Hi
Dudes
Any one can help me that how can i increase the size of two or multidimensional Array...?

Vulpes · Answer

Whilst you can use Array.Copy, for a given number of dimensions, you might find it easier to write a simple method which mimics what Array.Resize does for a single dimensional array.
Here is such a method for resizing a two dimensional array:
using System;
class Test {    static void Main()    {        // define 3 x 2 array        int[,] ia = new int[3, 2]{ {1,2}, {3,4}, {5,6} };
// resize to 4 x 3 - extra elements will be zero by default        Resize2D(ref ia, 4, 3);
ia[3,2] = 9; // give one of new elements a non-default value
// check it worked
for(int i = 0; i        {            for(int j = 0; j            {               Console.Write("{0} ", ia[i,j]);            }               Console.WriteLine();        }
Console.ReadKey();
}
static void Resize2D (ref T[,] array, int newSizeX, int newSizeY)    {       int sizeX = array.GetLength(0);       int sizeY = array.GetLength(1);       if (sizeX == newSizeX && sizeY == newSizeY) return; // no change needed       T[,] newArray = new T[newSizeX, newSizeY];
for (int i = 0; i       {          for (int j = 0; j          {             if (i          }       }
array = newArray;    }
}

Guest User · Answer

You'd have to copy it to a new array instance that has the desired dimensions.