private void button2_Click(object sender, EventArgs e)
        {
            frmAddPurchaseProduct frm = new frmAddPurchaseProduct(0, "");

            frm.ShowDialog();
            dataGridBind();
        }
        private void dgItemDetails_CellDoubleClick(object sender, DataGridViewCellEventArgs e)
        {
            try
            {
                if (dgItemDetails.CurrentRow.Index != -1 && dgItemDetails.CurrentRow.Cells[1].Value != null)
                {
                    var lID = Convert.ToInt32(dgItemDetails.CurrentRow.Cells[0].Value);

                    frmAddPurchaseProduct frm = new frmAddPurchaseProduct(lID, "");
                    frm.ShowDialog();
                    dataGridBind();
                }
            }
            catch (Exception x)
            {
                MessageBox.Show("Something went wrong. Contact your system administrator");
            }
        }