选中feature并高亮显示

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1、选中feature并高亮显示2008-07-1015:28protectedvoidcmdSelect_Click(objectsender,EventArgse)    {      //  SelectFeatures(Map1.Extent);        SelectFeatures();    }    publicvoidSelectFeatures()    {        #region        /*        IEnumerablefunc_enum=null;        //获取当前map1控件中所有的

2、functionality        func_enum=Map1.GetFunctionalities();        System.Data.DataTabledatatable;        //对所有的functionality进行遍历        foreach(ESRI.ArcGIS.ADF.Web.DataSources.IGISFunctionalitygisfunctionalityinfunc_enum)        {            ESRI.ArcGIS.ADF.Web.DataSources.

3、IGISResourcegisresource=null;            //得到该functionality的resource            gisresource=gisfunctionality.Resource;            //判断该resource是否支持IQueryFunctionality              boolsupported=false;            supported=gisresource.SupportsFunctionality(typeof(ESRI.ArcGI

4、S.ADF.Web.DataSources.IQueryFunctionality));            if(supported)            {                ESRI.ArcGIS.ADF.Web.DataSources.IQueryFunctionalityqfunc;                qfunc=(ESRI.ArcGIS.ADF.Web.DataSources.IQueryFunctionality)gisresource.CreateFunctionality(typeof(ESRI

5、.ArcGIS.ADF.Web.DataSources.IQueryFunctionality),null);                string[]lids;                string[]lnames;                //获得图层的layerId和layerName，GetQueryableLayers的重载方法可以指定图层类型                qfunc.GetQueryableLayers(null,outlids,outlnames);                ESRI.

6、ArcGIS.ADF.Web.SpatialFilterspatialfilter=newESRI.ArcGIS.ADF.Web.SpatialFilter();                //设置过滤器的过滤条件，txtQuery就是panel中textbox的ID                spatialfilter.ReturnADFGeometries=false;                spatialfilter.MaxRecords=1000;                spatialfilter.Where

7、Clause=txtQuery.Text;                spatialfilter.Geometry=geometry;                //对指定的图层进行查询，查询的结果保存为DataTable                datatable=qfunc.Query(null,lids[0],spatialfilter);                TreeViewPlus1.Nodes.Clear();                if(datatable!=null)             

8、   {                    System.Data.DataSetds=newSystem.Data.DataSet();