1.加载Shapefile数据

            IWorkspaceFactory pWorkspaceFactory;

             IFeatureWorkspace pFeatureWorkspace;

             IFeatureLayer pFeatureLayer;

             //获取当前路径和文件名

             OpenFileDialog dlg = new OpenFileDialog();

             dlg.Filter = "Shape(*.shp)|*.shp|All Files(*.*)|*.*";

             dlg.Title = "Open Shapefile data";

             dlg.ShowDialog();

            string strFullPath = dlg.FileName;

            if (strFullPath == "") return;

            int Index = strFullPath.LastIndexOf("\\");

            string filePath = strFullPath.Substring(, Index);

            string fileName = strFullPath.Substring(Index + );

            //打开工作空间并添加shp文件

            pWorkspaceFactory = new ShapefileWorkspaceFactoryClass();

            pFeatureWorkspace = (IFeatureWorkspace)pWorkspaceFactory.OpenFromFile(filePath, );

            pFeatureLayer = new FeatureLayerClass();

            pFeatureLayer.FeatureClass = pFeatureWorkspace.OpenFeatureClass(fileName);

            pFeatureLayer.Name = pFeatureLayer.FeatureClass.AliasName;

            axMapControl1.Map.AddLayer(pFeatureLayer);

            axMapControl1.ActiveView.Refresh();

2.加载栅格数据

            IWorkspaceFactory pWorkspaceFactory;

             IRasterWorkspace pRasterWorkspace;

             OpenFileDialog dlg = new OpenFileDialog();

             dlg.Filter = "Layer File(*.lyr)|*.jpg;*.bmp;*.tiff";

             dlg.Title = "Open Raster Data File";

             dlg.ShowDialog();

             //获取当前路径和文件名

             string strFullPath = dlg.FileName;

            if (strFullPath == "") return;

            int Index = strFullPath.LastIndexOf("\\");

            string fileName = strFullPath.Substring(Index + );

            string filePath = strFullPath.Substring(, Index);

            pWorkspaceFactory = new RasterWorkspaceFactoryClass();

            pRasterWorkspace = (IRasterWorkspace)pWorkspaceFactory.OpenFromFile(filePath, );

            IRasterDataset pRasterDataset = (IRasterDataset)pRasterWorkspace.OpenRasterDataset(fileName);

            IRasterLayer pRasterLayer = new RasterLayerClass();

            pRasterLayer.CreateFromDataset(pRasterDataset);

            axMapControl1.Map.AddLayer(pRasterLayer);

            axMapControl1.ActiveView.Refresh();

3.加载CAD数据

            IWorkspaceFactory pWorkspaceFactory;

             IFeatureWorkspace pFeatureWorkspace;

             IFeatureLayer pFeatureLayer;

             IFeatureDataset pFeatureDataset;

             //获取当前路径和文件名

             OpenFileDialog dlg = new OpenFileDialog();

             dlg.Filter = "CAD(*.dwg)|*.dwg|All Files(*.*)|*.*";

             dlg.Title = "Open CAD Data file";

             dlg.ShowDialog();

            string strFullPath = dlg.FileName;

            if (strFullPath == "") return;

            int Index = strFullPath.LastIndexOf("\\");

            string filePath = strFullPath.Substring(, Index);

            string fileName = strFullPath.Substring(Index + );

            //打开CAD数据集

            pWorkspaceFactory = new CadWorkspaceFactoryClass();

            pFeatureWorkspace = (IFeatureWorkspace)pWorkspaceFactory.OpenFromFile(filePath, );

            //打开一个要素集

            pFeatureDataset = pFeatureWorkspace.OpenFeatureDataset(fileName);

            //IFeaturClassContainer可以管理IFeatureDataset中的每个要素类

            IFeatureClassContainer pFeatClassContainer = (IFeatureClassContainer)pFeatureDataset;

            //对CAD文件中的要素进行遍历处理

            for (int i = ; i < pFeatClassContainer.ClassCount - ; i++)

            {

                IFeatureClass pFeatClass = pFeatClassContainer.get_Class(i);

                if (pFeatClass.FeatureType == esriFeatureType.esriFTCoverageAnnotation)

                    //如果是注记，则添加注记层

                    pFeatureLayer = new CadAnnotationLayerClass();

                else//如果是点、线、面，则添加要素层

                {

                    pFeatureLayer = new FeatureLayerClass();

                    pFeatureLayer.Name = pFeatClass.AliasName;

                    pFeatureLayer.FeatureClass = pFeatClass;

                    axMapControl1.Map.AddLayer(pFeatureLayer);

                    axMapControl1.ActiveView.Refresh();

                }

            }

4.加载PersonGeodatabase数据

            IWorkspaceFactory pAccessWorkspaceFactory;

             IFeatureWorkspace pFeatureWorkspace;

             IFeatureLayer pFeatureLayer;

             IFeatureDataset pFeatureDataset;

             //获取当前路径和文件名

             OpenFileDialog dlg = new OpenFileDialog();

             dlg.Filter = "Personal Geodatabase(*.mdb)|*.mdb|All Files(*.*)|*.*";

             dlg.Title = "Open PersonGeodatabase file";

            dlg.ShowDialog();

            string strFullPath = dlg.FileName;

            if (strFullPath == "") return;

            //打开personGeodatabase,并添加图层

            pAccessWorkspaceFactory = new AccessWorkspaceFactoryClass();

            //打开工作空间并遍历数据集

            IWorkspace pWorkspace = pAccessWorkspaceFactory.OpenFromFile(strFullPath, );

            IEnumDataset pEnumDataset = pWorkspace.get_Datasets(ESRI.ArcGIS.Geodatabase.esriDatasetType.esriDTAny);

            pEnumDataset.Reset();

            IDataset pDataset = pEnumDataset.Next();

            //如果数据集是IFeatureDataset,则遍历它下面的子类

            if (pDataset is IFeatureDataset)

            {

                pFeatureWorkspace = (IFeatureWorkspace)pAccessWorkspaceFactory.OpenFromFile(strFullPath, );

                pFeatureDataset = pFeatureWorkspace.OpenFeatureDataset(pDataset.Name);

                IEnumDataset pEnumDataset1 = pFeatureDataset.Subsets;

                pEnumDataset1.Reset();

                IDataset pDataset1 = pEnumDataset1.Next();

                //如果子类是FeatureClass，则添加到axMapControl1中

                if (pDataset1 is IFeatureClass)

                {

                    pFeatureLayer = new FeatureLayerClass();

                    pFeatureLayer.FeatureClass = pFeatureWorkspace.OpenFeatureClass(pDataset1.Name);

                    pFeatureLayer.Name = pFeatureLayer.FeatureClass.AliasName;

                    axMapControl1.Map.AddLayer(pFeatureLayer);

                    axMapControl1.ActiveView.Refresh();

                }

                else

                {

                    MessageBox.Show("No FeatureLayer!");

                }

            }

            else

            {

                pFeatureWorkspace = (IFeatureWorkspace)pWorkspace;

                pFeatureLayer = new FeatureLayerClass();

                pFeatureLayer.FeatureClass = pFeatureWorkspace.OpenFeatureClass("图层名");

                pFeatureLayer.Name = pFeatureLayer.FeatureClass.AliasName;

                axMapControl1.Map.AddLayer(pFeatureLayer);

                axMapControl1.ActiveView.Refresh();

            }

5.加载SDE数据库数据

        public ESRI.ArcGIS.Geodatabase.IWorkspace arcSDEWorkspaceOpen(String server, String instance, String user, String password, String database, String version)

         {

             try

             {

                 // Create and populate the property set

                 ESRI.ArcGIS.esriSystem.IPropertySet propertySet = new ESRI.ArcGIS.esriSystem.PropertySetClass();

                 propertySet.SetProperty("SERVER", server);

                 propertySet.SetProperty("INSTANCE", instance);

                 propertySet.SetProperty("DATABASE", database);

                propertySet.SetProperty("USER", user);

                propertySet.SetProperty("PASSWORD", password);

                propertySet.SetProperty("VERSION", version);

                ESRI.ArcGIS.Geodatabase.IWorkspaceFactory2 workspaceFactory;

                workspaceFactory = (ESRI.ArcGIS.Geodatabase.IWorkspaceFactory2)new SdeWorkspaceFactoryClass();

                return workspaceFactory.Open(propertySet, );

            }

            catch (Exception e)

            {

                throw new Exception(String.Format("arcSDEWorkspaceOpen: {0}", e.Message), e);

            }

        }

            IWorkspace pWorkspace = arcSDEWorkspaceOpen("计算机名", "", "数据库用户", "密码", "", "sde.DEFAULT");

            IFeatureWorkspace pFeattureWS = (IFeatureWorkspace)pWorkspace;

            IFeatureClass pFeatureClass = pFeattureWS.OpenFeatureClass("图层名");

            IFeatureLayer pFeatureLayer = new FeatureLayerClass();

            pFeatureLayer.FeatureClass = pFeatureClass;

            axMapControl1.AddLayer(pFeatureLayer);

            axMapControl1.Refresh();

6、文件地理数据库加载

　　　　　　　　 　IFeatureWorkspace pFeatureWorkspace;

                IFeatureLayer pFeatureLayer;

              　IFeatureDataset pFeatureDataset;

                string filePath = @"D:\My Documents\ArcGIS\新建文件地理数据库.gdb";

                string filename = "haha";

                //打开personGeodatabase,并添加图层

                IWorkspaceFactory pAccessWorkspaceFactory = new FileGDBWorkspaceFactoryClass();

                //打开工作空间并遍历数据集

                IWorkspace pWorkspace = pAccessWorkspaceFactory.OpenFromFile(filePath, );

                IEnumDataset pEnumDataset = pWorkspace.get_Datasets(ESRI.ArcGIS.Geodatabase.esriDatasetType.esriDTAny);

                pEnumDataset.Reset();

                IDataset pDataset = pEnumDataset.Next();

                //如果数据集是IFeatureDataset,则遍历它下面的子类

                if (pDataset is IFeatureDataset)

                {

                    pFeatureWorkspace = (IFeatureWorkspace)pAccessWorkspaceFactory.OpenFromFile(filePath, );

                    pFeatureDataset = pFeatureWorkspace.OpenFeatureDataset(pDataset.Name);

                    IEnumDataset pEnumDataset1 = pFeatureDataset.Subsets;

                    pEnumDataset1.Reset();

                    IDataset pDataset1 = pEnumDataset1.Next();

                    //如果子类是FeatureClass，则添加到axMapControl1中

                    if (pDataset1 is IFeatureClass)

                    {

                        pFeatureLayer = new FeatureLayerClass();

                        pFeatureLayer.FeatureClass = pFeatureWorkspace.OpenFeatureClass(filename);

                        pFeatureLayer.Name = pFeatureLayer.FeatureClass.AliasName;

                        IRgbColor pRgbColor = new RgbColorClass();

                        pRgbColor.Red = ;

                        pRgbColor.Green = ;

                        pRgbColor.Blue = ;

                        pRgbColor.Transparency = ;

                        ILineSymbol pLineSymbol = new SimpleLineSymbolClass();

                        IFillSymbol pFillSymbol = new SimpleFillSymbolClass();

                        pFillSymbol.Color = pRgbColor;

                        pRgbColor.Transparency = ;

                        pLineSymbol.Color = pRgbColor;

                        pLineSymbol.Width = ;

                        pFillSymbol.Outline = pLineSymbol;

                        ISimpleRenderer pSimpleRender = new SimpleRendererClass();

                        pSimpleRender.Symbol = pFillSymbol as ISymbol;

                        IGeoFeatureLayer pGeoFeatureLayer = pFeatureLayer as IGeoFeatureLayer;

                        pGeoFeatureLayer.Renderer = pSimpleRender as IFeatureRenderer;

                        pFeatureLayer = pGeoFeatureLayer as IFeatureLayer;

                        axMapControl1.Map.AddLayer(pFeatureLayer);

                        axMapControl1.ActiveView.Refresh();

                    }
                 }

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