} // recherche via un dico que l'on recharge a chaque filtre public void chargerDate() { DicoDate = new Dictionary <int, DateJoach>(); Date = new DateJoach(); lesDates = new List <DateJoach>(); lesDates = Date.initDateJoach(); lesDates = lesDates.OrderBy(x => x.Dateevenement).ToList(); int i = 0; foreach (DateJoach d in lesDates) { if (d.Inscriteleve == false && d.Inscritprof == false && (d.Aprem == true || d.Matin == true)) { ComboBoxDate.Items.Add(d.Dateevenement.ToLongDateString()); DicoDate.Add(i, d); i++; } } }