How could i navigate my cursor in my 2d array for loop

int[,] grid = {
    {1, 2, 3,},
    {4, 5, 6,},
    {7, 8, 9,},
};


int kolumn;
int rad;

ConsoleKeyInfo key;




while (true)
{
    Console.Clear();

    for (int i = 0; i < grid.GetLength(0); i++)
    {
        for (int j = 0; j < grid.GetLength(1); j++)
        {
            Console.Write(grid[i,j]);
            Console.Write(" ");
        }

        Console.WriteLine(" ");
    }    

    key = Console.ReadKey();

    switch (key.Key)
    {
        
        case ConsoleKey.UpArrow:
            break;
        
        case ConsoleKey.DownArrow:
            break;

        case ConsoleKey.LeftArrow:
            break;
    
        case ConsoleKey.RightArrow:
            break;
    }



}

int[,] grid = {
    {1, 2, 3,},
    {4, 5, 6,},
    {7, 8, 9,},
};


int kolumn;
int rad;

ConsoleKeyInfo key;




while (true)
{
    Console.Clear();

    for (int i = 0; i < grid.GetLength(0); i++)
    {
        for (int j = 0; j < grid.GetLength(1); j++)
        {
            Console.Write(grid[i,j]);
            Console.Write(" ");
        }

        Console.WriteLine(" ");
    }    

    key = Console.ReadKey();

    switch (key.Key)
    {
        
        case ConsoleKey.UpArrow:
            break;
        
        case ConsoleKey.DownArrow:
            break;

        case ConsoleKey.LeftArrow:
            break;
    
        case ConsoleKey.RightArrow:
            break;
    }



}