cours01/COURS01/FPrincipal.cs

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace COURS01
{
    public partial class EcranPrincipal : Form
    {
        Form parentToClose;
        bool parentToCloseF;
        public EcranPrincipal()
        {
            parentToCloseF = false;
            InitializeComponent();
        }
        public EcranPrincipal(Form parentToClose)
        {
            parentToCloseF = true;
            InitializeComponent();
            this.parentToClose = parentToClose;
        }
        private void mQuitter_Click(object sender, EventArgs e)
        {
               Close();
        }

        private void mQuitter_Click(object sender, FormClosingEventArgs e)
        {
            Close();
        }

        private void mNDef_Click(object sender, EventArgs e)
        {
            MessageBox.Show("Fonctionnalité non implémentée");
        }

        private void EcranAccueil_FormClosing(object sender, FormClosingEventArgs e)
        {
            if (MessageBox.Show("Voulez-vous vraiment quiter ?", "Souhait", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes)
            {
                e.Cancel = false;
            }
            else
            {
                e.Cancel = true;
            }
        }
    }
}