private void axMapControl1_OnMapReplaced_1(object sender, ESRI.ArcGIS.Controls.IMapControlEvents2_OnMapReplacedEvent e)
        {
            this.axMapControl2.Map = new MapClass();

            // 新增主地圖控制元件中的所有圖層到鷹眼控制元件中

            for (int i = 1; i <= this.axMapControl1.LayerCount; i++)
            {

                this.axMapControl2.AddLayer(this.axMapControl1.get_Layer(this.axMapControl1.LayerCount - i));

            }

            // 設定 MapControl 顯示範圍至資料的全域性範圍

            this.axMapControl2.Extent = this.axMapControl1.FullExtent;

            // 重新整理鷹眼控制元件地圖

            this.axMapControl2.Refresh();
        }

 

        private void axMapControl1_OnExtentUpdated_1(object sender, ESRI.ArcGIS.Controls.IMapControlEvents2_OnExtentUpdatedEvent e)
        {
            // 得到新範圍

            IEnvelope pEnv = (IEnvelope)e.newEnvelope;

            IGraphicsContainer pGra = axMapControl2.Map as IGraphicsContainer;

            IActiveView pAv = pGra as IActiveView;

            // 在繪製前，清除 axMapControl2 中的任何圖形元素

            pGra.DeleteAllElements();

            IRectangleElement pRectangleEle = new RectangleElementClass();

            IElement pEle = pRectangleEle as IElement;

            pEle.Geometry = pEnv;

            // 設定鷹眼圖中的紅線框

            IRgbColor pColor = new RgbColorClass();

            pColor.Red = 255;

            pColor.Green = 0;

            pColor.Blue = 0;

            pColor.Transparency = 255;

            // 產生一個線符號物件

            ILineSymbol pOutline = new SimpleLineSymbolClass();

            pOutline.Width = 2;

            pOutline.Color = pColor;

            // 設定顏色屬性

            pColor = new RgbColorClass();

            pColor.Red = 255;

            pColor.Green = 0;

            pColor.Blue = 0;

            pColor.Transparency = 0;

            // 設定填充符號的屬性

            IFillSymbol pFillSymbol = new SimpleFillSymbolClass();

            pFillSymbol.Color = pColor;

            pFillSymbol.Outline = pOutline;

            IFillShapeElement pFillShapeEle = pEle as IFillShapeElement;

            pFillShapeEle.Symbol = pFillSymbol;

            pGra.AddElement((IElement)pFillShapeEle, 0);

            // 重新整理

            pAv.PartialRefresh(esriViewDrawPhase.esriViewGraphics, null, null);
        }