Board Class C# The Game Of Life

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace Test
{
    public partial class Board : Form
    {
        private int BOARDWIDTH;
        private int BOARDHEIGHT;
        private int cellSize = 10;
        private bool Wrap;
        private int refreshRate;
        private World world;
        private Pen wPen = new Pen(Color.Black);
        private SolidBrush bBrush = new SolidBrush(Color.Black);
        private PictureBox pictureBox = new PictureBox();
        private Timer Timer1 = new Timer();
        public Board(World world, int cellsize, bool Wrap, int refreshRate)
        {
            this.BOARDHEIGHT = world.getWorldHeight() * cellsize;
            this.BOARDWIDTH = world.getWorldWidth() * cellsize;
            InitializeComponent();
            SetStyle(ControlStyles.OptimizedDoubleBuffer, true);
            pictureBox.SetBounds(0, 0, this.BOARDWIDTH, this.BOARDHEIGHT);
            this.cellSize = cellsize;
            this.world = world;
            this.Wrap = Wrap;
            this.refreshRate = refreshRate;
            InitializeTimer();

        }
        private void InitializeTimer()
        {
            Timer1.Interval = refreshRate;
            Timer1.Tick += new EventHandler(Timer1_Tick);
            Timer1.Enabled = true;

        }

        private void Timer1_Tick(object Sender, EventArgs e)
        {
            Invalidate();
            if (Wrap) world.updateWorldWraparound();
            else world.updateWorld();
        }
        private void Board_Load(object sender, System.EventArgs e)
        {
            pictureBox.Dock = DockStyle.Fill;
            pictureBox.BackColor = Color.White;
            this.Controls.Add(pictureBox);

        }

        protected override void OnPaint(PaintEventArgs e)
        {
            base.OnPaint(e);
                for (int i = 0; i < this.world.getWorldHeight(); i++)
                {
                    for (int j = 0; j < this.world.getWorldWidth(); j++)
                    {

                        if (!this.world.getCellState(i, j))
                        {
                                e.Graphics.DrawRectangle(wPen, i*this.cellSize - 1, j * this.cellSize - 1, this.cellSize, this.cellSize);

                        }
                        else
                        {
                                e.Graphics.FillRectangle(bBrush, i * this.cellSize, j * this.cellSize, this.cellSize, this.cellSize);

                        }
                    }
                }
        }
    }
}