ESRI.ArcGIS.ADF.Web.DataSources.IMS.MapFunctionality mf = (ESRI.ArcGIS.ADF.Web.DataSources.IMS.MapFunctionality)Map1.GetFunctionality(0); ESRI.ArcGIS.ADF.IMS.Carto.MapView mapview = mf.MapView; ESRI.ArcGIS.ADF.IMS.Carto.Layer.Layer layer = mapview.Layers.FindByName("SDE.SDE.行政分区");//根据名称找到相应图层 layer.Visible = false;//图层不显示