Close Button Event

 

그림

 

예제

 

        public Form1()
        {
            InitializeComponent();

            this.FormClosing += FormClosing_;
        }

        protected void FormClosing_(Object sender, FormClosingEventArgs e)
        {
            if (e.CloseReason == CloseReason.WindowsShutDown)
		return;

            if (this.DialogResult == DialogResult.Cancel)
            {
                switch (MessageBox.Show(this, "프로그램을 종료하시겠습니까?", "Exit", MessageBoxButtons.YesNo, MessageBoxIcon.Question))
                {
                    //Stay on this form
                    case DialogResult.No:
                        e.Cancel = true;
                        break;
                    default:
                        break;
                }
            }
        }