求助:selection中提取特定图层的问题

<P>我用mapcontrol1.activeview.focusmap.selectbyshape pPolygon,pSelectionEnvironment,false</P>
<P>选择了要选的feature!</P>
<P>但是,我只想要某一特定图层的feature,因为,我用以下语句:</P>
<P>set pFeatureSelection=frmmain.mapcontrol1.layer(0)</P>
<P>pFeatureSelection.selectfeatures nothing,esriselectionresultand,false</P>
<P>但选出来的结果却不是layer(0)图层的,,请问是什么问题???</P>

<P>layer(0)是点层,线层还是面层?</P><P>因为你用mapcontrol1.activeview.focusmap.selectbyshape Polygon,pSelectionEnvironment,false</P><P>这句话只能选择的是面层</P>