C#

private void FrmAddOrder_Load(object sender, EventArgs e)
{
    int currentRow = 0;
    foreach (Product p in productTable.Values)
    {
        this.dataGridProduct.Rows.Add();
        this.dataGridProduct.Rows[currentRow].Cells["colProductName"].Value = p.Name;
        this.dataGridProduct.Rows[currentRow].Cells["colModelNumber"].Value = p.ModelNumber;
        this.dataGridProduct.Rows[currentRow].Cells["colCategory"].Value = p.Category;
        this.dataGridProduct.Rows[currentRow].Cells["colDesc"].Value = p.Description;
        this.dataGridProduct.Rows[currentRow].Cells["colMSRP"].Value = p.MSRP;
        this.dataGridProduct.Rows[currentRow].Cells["colRetailPrice"].Value = p.RetailPrice;

        currentRow++;
    }
}

private void btnOK_Click(object sender, EventArgs e)
{
    foreach (DataGridViewRow dgw in dataGridProduct.Rows)
    {
        DataGridViewCheckBoxCell datacell = dgw.Cells[0] as DataGridViewCheckBoxCell;
        try
        {
            if ((bool)datacell.Value == true)
            {

            }
        }
        catch (NullReferenceException)
        {
        }
    }
}

namespace EBMS
{
    public class Order
    {
        private string refNumber;
        private string custName;
        private string destAdd;
        private string destCity;
        private DateTime orderDate;
        private double totalPrice;
        private Hashtable itemList;