arcengine复制axMapControl到axPageLayoutControl

using ESRI.ArcGIS.esriSystem;

        private void Form5_Load(object sender, EventArgs e)

        {

    //添加layer和shp图层

            axMapControl1.AddLayerFromFile(@"E:\testRainData\color2.lyr",0);

            axMapControl1.AddShapeFile(@"E:\testRainData\layer", "雨量监测器.shp");

    //更新axPageLayoutControl

            IObjectCopy objectCopy = new ObjectCopyClass();
            object toCopyMap = axMapControl1.Map;
            object copiedMap = objectCopy.Copy(toCopyMap);
            object toOverwriteMap = axPageLayoutControl1.ActiveView.FocusMap;
            objectCopy.Overwrite(copiedMap, ref toOverwriteMap); 
        }