C# properties, constructor,

Question

I want to create class that draws a board. I wrote code like this (it works):

{
public class Map
{
    public int rows { get; set; }
    public int cols { get; set; }
    public int[,] grid { get; set; }

    public Map(int rows, int cols)
    {
        this.rows = rows;
        this.cols = cols;
        this.grid = new int[rows, cols];
    }
    public void printBoard()
    {
        for (int r = 0; r < rows; r++)
        {
            for (int c = 0; c < cols; c++)

            {
                Console.Write(grid[r, c] + "");
            }
            Console.WriteLine();
        }
    }
}
//Program.cs: 
Map map = new Map(2, 2); map.printBoard();

Questions i have: 1.Can i create array as property and then initialize it(idk how to call it) in constructor as in the code above? I read here that i shoud't do it but maby that was not the case https://stackoverflow.com/a/18428679 2. If it's ok, is it good practice to write code like this, maby i coud write it better?