private void calCash_btn_Click(object sender, EventArgs e)
{
if (rent_rdb.Checked)
{
CashChange_Form cc = new CashChange_Form();
cc.Show();
int price = 0;
for (int i = 0; i < rentBook_dgv.Rows.Count; i++)
{
price += int.Parse(rentBook_dgv.Rows[i].Cells[3].Value.ToString());
}
cc.price = price;
}
}
private void Rent_Form_FormClosing(object sender, FormClosingEventArgs e)
{
CashChange_Form cc = new CashChange_Form();
cc.Close();
}
