void LoadMenuItemType(bool data) { Manage_Product manage = new Manage_Product(); ObservableCollection <string> a = new ObservableCollection <string>(); a = manage.getListTypeName(); for (int i = 0; i < a.Count; i++) { MenuItem t = new MenuItem(); t.Header = a[i]; t.Click += T_Click; typeMenu.Items.Add(t); } }