private void Form2_FormClosing(object sender, FormClosingEventArgs e) { DialogResult result = MessageBox.Show("你确定要关闭吗！", "提示信息", MessageBoxButtons.OKCancel, MessageBoxIcon.Information); if (result == DialogResult.OK) { e.Cancel = false; //点击OK } else { e.Cancel = true; } } |
原文：https://www.cnblogs.com/HuangLiming/p/14715177.html