GlobeControl中如何加载agv文件？

IFileName fn = new FileNameClass(); 

fn.Path = @E:videoLayer.agv; 

IName name = fn as IName; 

IGeoVideoLayer geovideoly = new GeoVideoLayerClass(); 

IDataLayer dly = geovideoly as IDataLayer; 

dly.DataSourceName = name; 

ILayer ly = geovideoly as ILayer; 

axGlobeControl1.Globe.GlobeDisplay.Scene.AddLayer(ly, true);