public async Task <ObservableCollection <CatalogItem> > FilterAsync(int catalogBrandId, int catalogTypeId)
{
CatalogRoot catalog = await catalogApi.GetAsyncBy(catalogTypeId, catalogBrandId);
if (catalog?.Data != null)
{
return(new ObservableCollection <CatalogItem>(catalog.Data));
}
else
{
return(new ObservableCollection <CatalogItem>());
}
}
