Panel:       panel1
  PictureBox:  m_pictureBox

  public partial class Form1 : Form
  {
    //------------------------------
    // Member Variables
    //------------------------------

    private PictureBox m_pictureBox = null;

    //------------------------------
    // Constructors
    //------------------------------

    public Form1()
    {
      InitializeComponent();
    }

    //------------------------------
    // Overrides
    //------------------------------

    protected override void OnLoad(EventArgs e)
    {
      base.OnLoad(e);

      // Instantiate the picture box.
      m_pictureBox = new PictureBox();

      // Initialize some of the picture box's properties.
      m_pictureBox.Dock = DockStyle.Fill;
      m_pictureBox.BackColor = Color.Bisque;

      // Add the picture box to the panel's Controls collection.  This way, the panel will correctly
      // dispose of the picture box later when the panel itself is destroyed.
      panel1.Controls.Add(m_pictureBox);

      // Add event handlers for the picture box's Click and MouseDown events.
      m_pictureBox.Click += new EventHandler(m_pictureBox_Click);
      m_pictureBox.MouseDown += new MouseEventHandler(m_pictureBox_MouseDown);
    }

    //------------------------------
    // Event Handlers
    //------------------------------

    void m_pictureBox_MouseDown(object sender, MouseEventArgs e)
    {
      System.Diagnostics.Debug.WriteLine("PictureBox MouseDown event called.");
    }

    void m_pictureBox_Click(object sender, EventArgs e)
    {
      MessageBox.Show(this, "PictureBox Click event called.");
    }
  }

public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {

        }

        private void buttonStart_Click(object sender, EventArgs e)
        {
            base.OnLoad(e);


            int[,] gridArray = new int[20, 20];

            for (int i = 0; i < numRows.Value; i++)
            {
                xpos = 300;
                ypos = ypos + 32;
                for (int j = 0; j < numCols.Value; j++)
                {
                    PictureBox curPb = new PictureBox();
                    curPb.Name = "picBox" + iPictureboxID.ToString();
                    curPb.Location = new Point(xpos, ypos);
                    curPb.Size = new Size(32, 32);
                    curPb.BackColor = Color.ForestGreen;
                    groupboxGame.Controls.Add(curPb);
                    curPb.Click += new EventHandler(curPb_Click);
                    xpos = xpos + 32;
                    iPictureboxID++;
                }
            }
        }

        void curPb_Click(object sender, EventArgs e)
        {
            MessageBox.Show(this, "PictureBox Click event called.");
            // "this" returns nothing visible in the MessageBox. I'd like to get the name of the PictureBox here. How? :)
        }
    }