private void consultConfigurationToolStripMenuItem_Click(object sender, EventArgs e)
 {
     if (GLFile == null || GLFile.IsDisposed)
     {
         GLFile           = new List_GL_File();
         GLFile.MdiParent = this;
         GLFile.idSoc     = idSociete;
         GLFile.Show();
     }
     else
     {
         GLFile.WindowState = FormWindowState.Maximized;
         GLFile.Activate();
     }
 }