public List<HierarchicalViewModelBase> LoadModel(HierarchicalViewModelBase parent)
{
var service = new TaxaService(User);
List<Taxon> model = null;
if (parent == null) {
model = service.GetTopLevelTaxa();
} else {
model = service.GetTaxaForParent((parent as TaxonViewModel).TaxaID.Value);
}
if (model != null) {
var temp = model.Where((taxon) => {
return _options == LookupOptions.TaxonExcludeAvailableNames ? !taxon.AvailableName.ValueOrFalse() : true;
}).Select((m) => {
return new TaxonViewModel(parent, m, _explorer.GenerateTaxonDisplayLabel);
});
var list = new List<HierarchicalViewModelBase>(temp);
return list;
}
return null;
}
private void BuildTaxaChildrenViewModel(HierarchicalViewModelBase item, int taxaID)
{
// The model node is a Taxon favorites, so we can get the 'real' taxon children for it...
item.Children.Clear();
var taxaService = new TaxaService(User);
List<Taxon> taxa = taxaService.GetTaxaForParent(taxaID);
foreach (Taxon taxon in taxa) {
TaxonViewModel child = new TaxonViewModel(item, taxon, null);
if (child.NumChildren > 0) {
child.LazyLoadChildren += new HierarchicalViewModelAction(viewModel_LazyLoadChildren);
child.Children.Add(new ViewModelPlaceholder("Loading..."));
}
item.Children.Add(child);
}
}