public void DeleteItem(LibraryModelItem item)
{
XElement node =
(from nedNodeElements in LibraryDocument.Descendants(NedNodeTag)
where (string)nedNodeElements.Attribute(NedNodeIdAttribute) == item.Id
select nedNodeElements).FirstOrDefault();
if (node != null)
{
node.Remove();
}
if (item is CatalogueModelItem)
{
CatalogueItems.Remove(item as CatalogueModelItem);
var query = from categoriesToRemove in CategoryItems where categoriesToRemove.ParentId == item.Id select categoriesToRemove;
List <CategoryModelItem> catTempList = query.ToList <CategoryModelItem>();
foreach (LibraryModelItem itemToRemove in catTempList)
{
DeleteItem(itemToRemove);
}
}
else if (item is CategoryModelItem)
{
CategoryItems.Remove(item as CategoryModelItem);
foreach (LibraryModelItem miToRemove in (item as CategoryModelItem).Children())
{
DeleteItem(miToRemove);
}
}
else if (item is MediaItemsListModelItem)
{
MediaItemsListModelItem mediaItem = item as MediaItemsListModelItem;
MediaItems.Remove(mediaItem);
App.Engine.DeleteMediaItem(mediaItem);
}
else
{
Debug.Assert(false, FileLanguage.LibraryModel_RemovingUnknowTypeError);
}
App.Engine.StatisticsManager.LogItemDeleted(item.Id);
OnLibraryItemRemoved(new LibraryRemovedEventArgs()
{
RemovedItem = item
});
}
private void UpdateParentOnLibraryItemRemoved(object sender, LibraryRemovedEventArgs args)
{
LibraryModelItem item = args.RemovedItem as LibraryModelItem;
if (args.RemovedItem is MediaItemsListModelItem)
{
CategoryModelItem parent = (from parentItem in CategoryItems where parentItem.Id == item.ParentId select parentItem).FirstOrDefault();
if (parent != null)
{
parent.RemoveChild(item as MediaItemsListModelItem);
}
}
else if (args.RemovedItem is CategoryModelItem)
{
CatalogueModelItem parent = (from parentItem in CatalogueItems where parentItem.Id == item.ParentId select parentItem).FirstOrDefault();
if (parent != null)
{
int childrenCount = (from categoryItem in CategoryItems where categoryItem.ParentId == item.ParentId select categoryItem).Count();
parent.Subtitle = CatalogueModelItem.GetSubtitleString(childrenCount);
}
}
// Currently there is no need to handle CatalogueModelItem removal
}
