Winform 关闭应用程序

private void frmMDIMain_FormClosing(object sender, FormClosingEventArgs e)
        {

            if (e.CloseReason != CloseReason.ApplicationExitCall)
            {
                DialogResult re = MessageBox.Show(resourceClose,resourceCloseTip, MessageBoxButtons.YesNo, MessageBoxIcon.Information);
                if (re == DialogResult.Yes)
                {
                    e.Cancel = false;

                    Application.Exit();
                }
                else
                {
                    e.Cancel = true;
                }
            } 

        }