private static void DeleteDocNodes(SkylineWindow skylineWindow, HashSet <IdentityPath> identityPaths)
{
if (null != skylineWindow)
{
List <IdentityPath> deletedNodePaths = null;
skylineWindow.ModifyDocument(Resources.SkylineViewContext_DeleteDocNodes_Delete_items,
doc => DeleteNodes(doc, identityPaths, out deletedNodePaths),
docPair => SkylineWindow.CreateDeleteNodesEntry(docPair,
deletedNodePaths.Select(i => AuditLogEntry.GetNodeName(docPair.OldDoc, docPair.OldDoc.FindNode(i)).ToString()), deletedNodePaths.Count));
}
}