internal int Remove(object item, bool returnLeafIndex)
{
int index = -1;
int localIndex = ProtectedItems.IndexOf(item);
if (localIndex >= 0)
{
if (returnLeafIndex)
{
index = LeafIndexFromItem(null, localIndex);
}
CollectionViewGroupInternal subGroup = item as CollectionViewGroupInternal;
if (subGroup != null)
{
subGroup.Clear();
// Remove from the name to group map.
RemoveSubgroupFromMap(subGroup);
}
ChangeCounts(item, -1);
// ChangeCounts may clear this group, if it is now empty.
// In that case, don't use localIndex - it's now out of range.
if (ProtectedItems.Count > 0)
{
ProtectedItems.RemoveAt(localIndex);
}
}
return(index);
}
/// <summary>
/// Removes the specified item from the collection
/// </summary>
/// <param name="item">Item to remove</param>
/// <param name="returnLeafIndex">Whether we want to return the leaf index</param>
/// <returns>Leaf index where item was removed, if value was specified. Otherwise '-1'</returns>
internal int Remove(object item, bool returnLeafIndex)
{
int index = -1;
int localIndex = ProtectedItems.IndexOf(item);
if (localIndex >= 0)
{
if (returnLeafIndex)
{
index = LeafIndexFromItem(null, localIndex);
}
ChangeCounts(item, -1);
ProtectedItems.RemoveAt(localIndex);
}
return(index);
}
internal void RemoveSpecialItem(int index, object item, bool loading)
{
Debug.Assert(Object.Equals(item, ProtectedItems[index]), "RemoveSpecialItem finds inconsistent data");
int globalIndex = -1;
if (!loading)
{
globalIndex = this.LeafIndexFromItem(item, index);
}
ChangeCounts(item, -1);
ProtectedItems.RemoveAt(index);
if (!loading)
{
OnCollectionChanged(new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Remove, item, globalIndex));
}
}
internal int Remove(object item, bool returnLeafIndex)
{
int index = -1;
int localIndex = ProtectedItems.IndexOf(item);
if (localIndex >= 0)
{
if (returnLeafIndex)
{
index = LeafIndexFromItem(null, localIndex);
}
CollectionViewGroupInternal subGroup = item as CollectionViewGroupInternal;
if (subGroup != null)
{
// Remove from the name to group map.
RemoveSubgroupFromMap(subGroup);
}
ChangeCounts(item, -1);
ProtectedItems.RemoveAt(localIndex);
}
return(index);
}