private void btnSTAGAIRE_Click(object sender, EventArgs e)
{
FermerFormulaire();
sg = new Stagaire();
sg.MdiParent = this;
sg.Size = this.Size;
sg.Dock = DockStyle.Fill;
sg.Show();
}
private void metroTile1_Click(object sender, EventArgs e)
{
Stagaire sg = new Stagaire();
sg.MdiParent = this.MdiParent;
this.Close();
sg.Size = sg.MdiParent.Size;
sg.Dock = DockStyle.Fill;
sg.Show();
}