objectarx .net 获取图层名称

主要是通过遍历  layerTable 表的方式获取，方法很基础，只是本人菜鸟，才发现，代码如下：

[CommandMethod("getLayername")]
        public void GetLayerName()
        {
            Database db = HostApplicationServices.WorkingDatabase;
            using (Transaction trans = db.TransactionManager.StartTransaction())
            {
                LayerTable lt = (LayerTable)trans.GetObject(db.LayerTableId, OpenMode.ForRead);
                Editor ed = Application.DocumentManager.MdiActiveDocument.Editor;

                foreach (ObjectId layerId in lt)
                {
                    LayerTableRecord ltr = (LayerTableRecord)trans.GetObject(layerId, OpenMode.ForRead);
                    ed.WriteMessage(ltr.Name);
                }
                trans.Commit();
            }
        }