------------------------------------------------------------------武汉理工大学 GIS 专业 实验二：右键删除图层 1)Form1.cs 代码： using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; using ESRI.ArcGIS.Carto; using ESRI.ArcGIS.Geometry; using ESRI.ArcGIS.Display; using ESRI.ArcGIS.Controls; namespace 右键删除图层 { public partial class Form1 : Form { public Form1() { InitializeComponent(); } private void Form1_Load(object sender, EventArgs e) { axTOCControl1.SetBuddyControl(axMapControl1); axToolbarControl1.SetBuddyControl(axMapControl1);//Form1中绑定可以不设置，但 必须在代码中添加这两段话，才能起同步作用。 } private void axMapControl1_OnMapReplaced(object sender, ESRI.ArcGIS.Controls.IMapControlEvents2_OnMapReplacedEvent e) { } IMap pMap; pMap = axMapControl1.Map; for (int i = 0; i < pMap.LayerCount; i++) { axMapControl2.Map.AddLayer(pMap.get_Layer(i)); } 

private void axMapControl2_OnMouseMove(object sender, ESRI.ArcGIS.Controls.IMapControlEvents2_OnMouseMoveEvent e) { if (e.button != 1) return; IPoint pPoint = new PointClass(); pPoint.X = e.mapX; pPoint.Y = e.mapY; axMapControl1.CenterAt(pPoint); axMapControl2.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGraphics, null, null); } private void axMapControl1_OnExtentUpdated(object sender, ESRI.ArcGIS.Controls.IMapControlEvents2_OnExtentUpdatedEvent e) { IGraphicsContainer pGC = axMapControl2.Map as IGraphicsContainer; IActiveView pAV = pGC as IActiveView; pGC.DeleteAllElements(); IRectangleElement pRE = new RectangleElementClass(); IElement pEle = pRE as IElement; IEnvelope pEnvelope = e.newEnvelope as IEnvelope; pEle.Geometry = pEnvelope; IRgbColor pColor = new RgbColorClass(); pColor.Red = 200; pColor.Green = 0; pColor.Blue = 0; pColor.Transparency = 255; ILineSymbol pLineSymbol = new SimpleLineSymbolClass(); pLineSymbol.Width = 2; pLineSymbol.Color = pColor; IFillSymbol pFillSymbol = new SimpleFillSymbolClass(); pColor.Transparency = 0; pFillSymbol.Color = pColor; pFillSymbol.Outline = pLineSymbol; IFillShapeElement pFillShapeElement = pRE as IFillShapeElement; pFillShapeElement.Symbol = pFillSymbol; pGC.AddElement(pEle, 0); axMapControl2.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGraphics, null, null); 

} private void axMapControl1_OnMouseDown(object sender, ESRI.ArcGIS.Controls.IMapControlEvents2_OnMouseDownEvent e) { if (e.button == 1) { IPoint pPoint = new PointClass(); pPoint.X = e.mapX; pPoint.Y = e.mapY; IEnvelope pEnvelope = axMapControl1.Extent as IEnvelope; pEnvelope.CenterAt(pPoint); axMapControl1.Extent = pEnvelope; axMapControl1.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGeography, null, null); } else if (e.button == 2) { IEnvelope pEnvelope = axMapControl2.TrackRectangle(); axMapControl1.Extent = pEnvelope; axMapControl1.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGeography, null, null); } } ILayer SelectedLayer_TOC = null; private void axTOCControl1_OnMouseDown(object sender, ESRI.ArcGIS.Controls.ITOCControlEvents_OnMouseDownEvent e) { if (e.button == 2) { IBasicMap map = null; ILayer layer = null; Object other = null; Object index = null; esriTOCControlItem item = esriTOCControlItem.esriTOCControlItemNone; axTOCControl1.HitTest(e.x, e.y, ref item, ref map, ref layer, ref other, ref index); if (item == esriTOCControlItem.esriTOCControlItemLayer) { SelectedLayer_TOC = layer; TOCMenuStrip1.Show(axTOCControl1, e.x, e.y); 

} } } private void RemoveLayerMenuItem_Click(object sender, EventArgs e) { if (SelectedLayer_TOC != null) { axMapControl1.Map.DeleteLayer(SelectedLayer_TOC); axMapControl2.Map.DeleteLayer(SelectedLayer_TOC); SelectedLayer_TOC = null; } } } } 2)Program.cs 代码 using System; using System.Collections.Generic; using System.Linq; using System.Windows.Forms; namespace 右键删除图层 { static class Program { [STAThread] static void Main() { Application.EnableVisualStyles(); ESRI.ArcGIS.RuntimeManager.Bind(ESRI.ArcGIS.ProductCode.EngineOrDesktop); Application.SetCompatibleTextRenderingDefault(false); Application.Run(new Form1()); } } }