Tomboy.TaskManager.TaskList.LockEnd C# (CSharp) Method

        public bool LockEnd()
        {
            bool result = false;

            Logger.Debug ("locking end");
            var end = End;
            if (Buffer.GetDynamicTag ("tasklist", end) != Tag) {
                result = true;
                Logger.Debug ("inserting \\n");
                Buffer.Insert (ref end, System.Environment.NewLine);
                if (Buffer.GetIterAtMark (Buffer.InsertMark).Equal (end)) {
                    end.BackwardChar ();
                    Buffer.PlaceCursor (end);
                }
            }

            end = End;
            var start = end;
            end.ForwardChar ();
            Buffer.ApplyTag ("locked", start, end);

            return result;
        }

        /// <summary>
        /// Transfer all the tasks to another tasklist, used for merging
        /// </summary>
        /// <param name="tasklist">
        /// The other <see cref="TaskList"/> tasklist to send the tasks to
        /// </param>
        public void TransferTasksTo(TaskList tasklist)
        {
            List<Task> to_transfer = new List<Task> ();

            foreach (Task task in Tasks) {
                if (!task.WasDeleted) {
                    Logger.Debug ("adding task " + task.Description ());
                    to_transfer.Add (task);
                }
            }

            foreach (Task task in to_transfer) {
                tasklist.AddFinishedTask (task);
                task.RemoveTag (Tag);
                Tasks.Remove (task);
            }

            Delete ();
            tasklist.LockEnd ();
        }