[求助]想把符合条件的多个图元都定位到地图中该怎么做

<P>我现在只能定位一个图元，不能定位多个！附上我的代码，各位帮我看看！</P>
<P>IFeatureSelection pFeatSeln;<BR>   pFeatLyr=(IFeatureLayer)this.axMapControl1.get_Layer(this.comboBox1.SelectedIndex);<BR>   pFeatSeln=(IFeatureSelection)pFeatLyr;<BR>   pFeatSeln.SelectFeatures(pQueryFltr,0,false);<BR>   ISelectionSet pSelSet;<BR>   pSelSet=pFeatSeln.SelectionSet;<BR>   IFeatureCursor pFeatCursor;<BR>   pFeatCursor=pFeatLyr.FeatureClass.Search(pQueryFltr,false);<BR>   ICursor pCursor;<BR>   pCursor=(ICursor)pFeatCursor;<BR>   pSelSet.Search(pQueryFltr,true,out pCursor);<BR>   IFeature pFeature;<BR>   pFeature=pFeatCursor.NextFeature();<BR>   IEnvelope pExtent;<BR>   pExtent=pFeature.Shape.Envelope;<BR>   this.axMapControl1.Extent =pFeature.Shape.Envelope;</P>

<P>求包含多个图元的最小矩，然后设置范围</P>