private void créerUneLigueToolStripMenuItem1_Click(object sender, EventArgs e)
{
if (f1 == null)
{
f1 = new AddLigue();
f1.MdiParent = this;
f1.FormClosed += F1_FormClosed;
f1.Show();
Form childForm = new Form();
}
else
{
f1.Activate();
}
}
private void F1_FormClosed(object sender, FormClosedEventArgs e)
{
f1 = null;
}
