C#关闭窗体时询问是否确认关闭

C#关闭窗体时询问是否确认关闭

在窗体的FormClosing事件中编写，弹出一个窗口询问是否确认退出

private void SocketForm_FormClosing(object sender, FormClosingEventArgs e)
{
    DialogResult result = MessageBox.Show("你确定要退出程序吗?", "操作提示", MessageBoxButtons.OKCancel, MessageBoxIcon.Information);
    if (result == DialogResult.OK)
    {
        System.Environment.Exit(0);
    }
    else
    {
        e.Cancel = true;
    }

}