public static AsyncObservableCollection <T> GetItems <T>(AsyncObservableCollection <T> collection, DummyItemType collectionType) where T : StoreItem, new()
{
AsyncObservableCollection <T> items = collection.ToCollection();
items.Sort((x, y) => x.Title.CompareTo(y.Title));
if (collectionType == DummyItemType.NoneType || collectionType == DummyItemType.AllNoneType)
{
T item = StoreItem.GetDummyItem <T>(DummyItemType.NoneType);
items.Insert(0, item);
}
if (collectionType == DummyItemType.AllType || collectionType == DummyItemType.AllNoneType)
{
T item = StoreItem.GetDummyItem <T>(DummyItemType.AllType);
items.Insert(0, item);
}
return(items);
}
public static AsyncObservableCollection <T> GetItems <T>(AsyncObservableCollection <T> collection, DummyItemType collectionType, string sortPropName) where T : StoreItem, new()
{
AsyncObservableCollection <T> items = collection.ToCollection();
if (collectionType == DummyItemType.NoneType || collectionType == DummyItemType.AllNoneType)
{
T item = StoreItem.GetDummyItem <T>(DummyItemType.NoneType);
items.Add(item);
}
if (collectionType == DummyItemType.AllType || collectionType == DummyItemType.AllNoneType)
{
T item = StoreItem.GetDummyItem <T>(DummyItemType.AllType);
items.Add(item);
}
ItemPropertySort <T> itemComparer = new ItemPropertySort <T>(sortPropName, System.ComponentModel.ListSortDirection.Ascending);
items.Sort((x, y) => itemComparer.Compare(x, y));
return(items);
}