How to resize multidimensional array in C#?

 
Today i need to re size a two dimensional array in my project. we know that C# does not contain any statement like Redim or Redim Preserve of the vb.net. So i wrote the following function to re size an two dimensional array in C#.(With the help of the following function you can change the size of the existing multidimensional array in C#.)
 

 private void ResizeArray(ref string[,] Arr, int x)
       {
           string[,] _arr = new string[x, 5];
           int minRows = Math.Min(x, Arr.GetLength(0));
           int minCols = Math.Min(5, Arr.GetLength(1));
           for (int i = 0; i < minRows; i++)
               for (int j = 0; j < minCols; j++)
                   _arr[i, j] = Arr[i, j];
           Arr = _arr;
        }

 

How to use the above function:

private void DoWork()
       {
           string[,] arr = new string[1, 3];
           arr[0, 0] = "Item1";
           arr[0, 1] = "Item2";
           arr[0, 2] = "Item3";
 
           ResizeArray(ref arr, 3);
       }

 
See the data in array arr before calling function ResizeArray:
arr[0, 0] = “Item1”
arr[0, 1] = “Item2”
arr[0, 2] = “Item3”
 
After Calling Function ResizeArray:
arr[0, 0] = “Item1”
arr[0, 1] = “Item2”
arr[0, 2] = “Item3”
arr[1, 0] = “NULL”
arr[1, 1] = “NULL”
arr[1, 2] = “NULL”
arr[2, 0] = “NULL”
arr[2, 1] = “NULL”
arr[2, 2] = “NULL”

I hope this will be helpful for you. Thanks