private void pbRetour_Click(object sender, EventArgs e) { FormIndex FI = (FormIndex)this.MdiParent; if (arrivage == "index") { FI.PictureBox1.Visible = true; var pos = FI.PointToScreen(FI.LblCreateur.Location); pos = FI.PictureBox1.PointToClient(pos); FI.LblCreateur.Parent = FI.PictureBox1; FI.LblCreateur.Location = pos; FI.LblCreateur.BackColor = Color.Transparent; } if (arrivage == "liste") { FormListe FS = new FormListe(); FS.MdiParent = FI; FS.Show(); } if (arrivage == "miniature") { FormMiniature FS = new FormMiniature(); FS.MdiParent = FI; FS.Show(); } if (arrivage == "arborescence") { FormArborescence FS = new FormArborescence(); FS.MdiParent = FI; FS.Show(); } this.Close(); }