internal TreeViewNodeModel GetTreeViewNodeModel(Guid guid) { if (guid != null && guid != Guid.Empty) { return(Lines.FirstOrDefault(item => guid.Equals(item.Guid)) ?? Funs.FirstOrDefault(item => guid.Equals(item.Guid)) ?? Primitives.FirstOrDefault(item => guid.Equals(item.Guid))); } return(null); }