pagelayout中选择要素

<P>如何在pagelayout中点击一点，查找并选择该点的要素</P>
<P>      IPoint searchPoint = new ESRI.ArcGIS.Geometry.PointClass();<BR>      searchPoint=axPageLayoutControl1.ActiveView.ScreenDisplay.DisplayTransformation.ToMapPoint(e.x,e.y);</P>
<P>      Console.WriteLine(searchPoint.X.ToString() + "              " + searchPoint.Y.ToString());<BR>      <BR>      axPageLayoutControl1.ActiveView.FocusMap.ClearSelection();     <BR>axPageLayoutControl1.CtlRefresh(esriViewDrawPhase.esriViewGeoSelection,null,null);  <BR>      axPageLayoutControl1.ActiveView.FocusMap.SelectByShape((IGeometry)searchPoint,null,true);<BR>      axPageLayoutControl1.CtlRefresh(esriViewDrawPhase.esriViewGeoSelection,null,null);<BR>      IEnumFeature pEnumFeature2 = (IEnumFeature)axPageLayoutControl1.ActiveView.FocusMap.FeatureSelection;<BR>      pEnumFeature2.Reset();<BR>      IFeature pFeature2 = pEnumFeature2.Next();<BR>      if(pFeature2!=null)<BR>      {<BR>       IRgbColor Color1 = new RgbColorClass();<BR>       Color1.Green=250;<BR>       ISimpleLineSymbol pLine = new SimpleLineSymbolClass();<BR>       pLine.Color=Color1;<BR>       pLine.Width=1;<BR>       MessageBox.Show("找到了要素！");<BR>      }<BR>      else<BR>      {<BR>       MessageBox.Show("没有找到要素！");<BR>      }</P>

searchPoint的坐标不对，不知道怎么弄

<P>searchPoint=axPageLayoutControl1.ActiveView.ScreenDisplay.DisplayTransformation.ToMapPoint(e.x,e.y);</P>
<P>换成这样写（VB是这样，自己改成C＃的吧）</P>
<P>Dim pP As IPoint<BR>Set pP = New Point<BR>Dim pAvw As IActiveView<BR>Set pAvw = PageLayoutControl1.ActiveView.FocusMap<BR>Set pP = pAvw.ScreenDisplay.DisplayTransformation.ToMapPoint(x, y)</P>
<P>注意一定要从FocusMap  QI到IActiveView<BR></P>