private void button2_Click(object sender, EventArgs e)
{
if (MessageBox.Show("是否删除该支付方式？", "提示", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes)
{
if (db.DeletePaymen(int.Parse(lbPayment.SelectedValue.ToString())) == -1)
{
MessageBox.Show("删除失败，该支付方式已被使用！");
return;
}
FormSetting_Load(sender, e);
}
}
