private void RemoveItemsFromCollection()
{
var names = _collectionItems.GetSelection().Select(id => _collectionItems.Root.Find(id).Name);
CollectionData collectionData = _selectedItem.CollectionData;
var itemNames = collectionData.ItemNames.Except(names).ToArray();
RecordUndo($"Remove {itemNames.Length} item(s) from collection {collectionData.Name}");
_selectedItem.CollectionData.ItemNames = itemNames.Distinct().ToArray();
_collectionItems.SetSelection(new List <int>());
RebuildItemLists();
}
private void AddItemsToCollection()
{
var names = _availableItems.GetSelection().Select(id => _availableItems.Root.Find(id).Name);
var collectionData = _selectedItem.CollectionData;
var itemNames = collectionData.ItemNames?.ToList() ?? new List <string>();
itemNames.AddRange(names);
RecordUndo($"Add {itemNames.Count} item(s) to collection {collectionData.Name}");
collectionData.ItemNames = itemNames.Distinct().ToArray();
_availableItems.SetSelection(new List <int>());
RebuildItemLists();
}