arcengine C# 读写lyr

写lyr    

{

           IFeatureLayer LineLayer = axMapControl1.get_Layer(0) as IFeatureLayer;
            ILayerFile layerFile = new LayerFileClass();
            //create a new layer file
            layerFile.New(saveFileDialog.FileName);
            //attach the layer file with the actual layer
            layerFile.ReplaceContents((ILayer)LineLayer);
            // savee the layer file
            layerFile.Save();
          

        }
        /// <summary>
        /// 读取层文件
        /// </summary>
        public void ReadLyr(string pFileName)
        {
            try
            {
                IMapControl2 myAddLayerMap = new MapControlClass();
                myAddLayerMap.AddLayerFromFile(pFileName, 0);
                this.axMapControl1.AddLayer(myAddLayerMap.get_Layer(0));
            }
            catch (Exception ex)
            {
                throw new Exception(ex.Message);
            }
        }