それにC#の多次元配列って[][]じゃなくて[,]じゃないの？
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        private void Form1_Load(object sender, EventArgs e)
        {
            int[,] cmdr = new int[1, 1];
            int input = 1;
            int r = 0;
            int i = 0;
            while (!((cmdr[r, i] & input) == 0))
            {
            }
        }
    }
}