private IEnumerable <IDisposable> Binding()
{
yield return
(this.WhenAnyValue(x => x.ItemsSource).Where(x => x != null).Subscribe(
itemsSource =>
{
var collection = itemsSource.Union(itemsSource.SelectMany(x => x.Childs));
if (SelectedItem == null && collection.Any(x => x.IsAccess))
{
CatalogHierarchical selectCatalog = collection.First(x => x.IsAccess);
SelectedItem = new Catalog(selectCatalog.Rn)
{
Name = selectCatalog.Name
};
}
TrvAcatalog.ItemsSource = itemsSource;
}));
yield return
(this.WhenAnyValue(x => x.TrvAcatalog.SelectedItem)
.Where(x => x != null && ((CatalogHierarchical)x).IsAccess)
.Subscribe(
selectedItem =>
{
var selecCatalog = (CatalogHierarchical)selectedItem;
SelectedItem = new Catalog(selecCatalog.Rn)
{
Name = selecCatalog.Name
};
}));
}
private static bool FindChildrenHierarchical(CatalogHierarchical catalog, IList <Acatalog> accessCatalog)
{
foreach (var elem in catalog.Childs)
{
elem.IsAccess = FindChildrenHierarchical(elem, accessCatalog);
}
return(accessCatalog.Where(x => x.Rn == catalog.Rn).Any());
}
