Winform实现确认取消框

private void btn_clearResult_Click(object sender, EventArgs e)
{
    DialogResult dr = MessageBox.Show("你确定清空结果数据吗？", "提示", MessageBoxButtons.OKCancel, MessageBoxIcon.Question);
    if (dr == DialogResult.OK)
    {
        //确定
        MessageBox.Show("ok");
    }
}