private void lesEntréesToolStripMenuItem_Click(object sender, EventArgs e)
 {
     if (sgl == null || sgl.IsDisposed)
     {
         sgl           = new Extract_SGL_File();
         sgl.idSoc     = idSociete;
         sgl.codeSoc   = CodeSoc;
         sgl.NomSoc    = NomSoc;
         sgl.MdiParent = this;
         sgl.Show();
     }
     else
     {
         sgl.WindowState = FormWindowState.Maximized;
         sgl.Activate();
     }
 }
 private void lesEntréesToolStripMenuItem_Click(object sender, EventArgs e)
 {
     if (sgl == null || sgl.IsDisposed)
     {
         sgl = new Extract_SGL_File();
         sgl.idSoc = idSociete;
         sgl.codeSoc = CodeSoc;
         sgl.NomSoc = NomSoc;
         sgl.MdiParent = this;
         sgl.Show();
     }
     else
     {
         sgl.WindowState = FormWindowState.Maximized;
         sgl.Activate();
     }
 }