public Systeme(string nomSysteme, int docNumber, Section lePapa)
                    : base(lePapa._UCDoc)
                {
                    systemeName = nomSysteme;
                    listeDesCategories = new List<Categorie>();
                    num = docNumber;
                    lePapa.listeDesSystemes.Add(this);
                    _Section = lePapa;
                    tviSysteme = null;
                    _Section.num += num;

                    ((TagObject)_Section.GetTreeViewItem().Tag).nbDoc += num;
                }
            private void BW_Menu_ProgressChanged(object sender, ProgressChangedEventArgs e)
            {
                string[] workerResult = e.UserState as string[];
                int indexSection = this.hasSection(workerResult[0]);
                if (indexSection != -1)
                {
                    int indexSysteme = this.listeDesSections[indexSection].hasSysteme(workerResult[1]);
                    if (indexSysteme != -1)
                    {
                        int indexCategorie = this.listeDesSections[indexSection].listeDesSystemes[indexSysteme].hasCategorie(workerResult[2]);
                        if (indexCategorie == -1)
                        {
                            //on ajoute simplement la categorie
                            Categorie aNewCategorie = new Categorie(workerResult[2], int.Parse(workerResult[3]), this.listeDesSections[indexSection].listeDesSystemes[indexSysteme]);

                            this.listeDesSections[indexSection].listeDesSystemes[indexSysteme].GetTreeViewItem().Items.Add(aNewCategorie.GetTreeViewItem());
                        }
                    }
                    else
                    {
                        //On ajoute systeme et la catégorie
                        Systeme aNewSysteme = new Systeme(workerResult[1], 0, this.listeDesSections[indexSection]);
                        Categorie aNewCategorie = new Categorie(workerResult[2], int.Parse(workerResult[3]), aNewSysteme);

                        this.listeDesSections[indexSection].GetTreeViewItem().Items.Add(aNewSysteme.GetTreeViewItem());
                        aNewSysteme.GetTreeViewItem().Items.Add(aNewCategorie.GetTreeViewItem());
                    }
                }
                else
                {
                    //On ajoute tout

                    Section aNewSection = new Section(workerResult[0], 0, this);
                    Systeme aNewSysteme = new Systeme(workerResult[1], 0, aNewSection);
                    Categorie aNewCategorie = new Categorie(workerResult[2], int.Parse(workerResult[3]), aNewSysteme);

                    _UCDoc.AddItemToMenu(aNewSection.GetTreeViewItem());
                    aNewSection.GetTreeViewItem().Items.Add(aNewSysteme.GetTreeViewItem());
                    aNewSysteme.GetTreeViewItem().Items.Add(aNewCategorie.GetTreeViewItem());
                }
            }