private void ouvrirToolStripMenuItem_Click(object sender, EventArgs e)
{
if (xs == null)
{
xs = new ouvrirQuestionnaire(this);
xs.MdiParent = this;
xs.FormClosed += new FormClosedEventHandler(xs_FormClosed);
xs.Show();
}
else
{
xs.Activate();
}
}
private void xs_FormClosed(object sender, FormClosedEventArgs e)
{
xs = null;
}