// Form1.cs
private byte totalControls;
private List<MyControl> controls;

public Form1()
{
    InitializeComponent();
    totalControls = 21;
    controls = new List<MyControl>(totalControls);
    for (byte i = 0; i < totalControls; i++)
    {
        controls.Add(new MyControl(i));
        panel1.Controls.Add(controls[i]);

        // My Problem:
        controls[i].Location = new Point(3 + (32 * i), 3);
        if ((i % 10 == 0) && (i != 0))
        {
            controls[i].Location = new Point(3 + (32 * i), 3 + (32 * i));
        }

        controls[i].Name = "myControl" + i.ToString();
        controls[i].Size = new Size(32, 32);
        controls[i].TabIndex = i;
        controls[i].Text = string.Empty;
    }
}