ARCEngine中添加Shp数据，栅格数据，GDB数据

古城微笑少年丶 2021-09-17 09:10 501阅读 0赞

**目录**

添加shp数据：

添加栅格数据：

添加GDB数据：

--------------------

## 添加shp数据： ##

private void 添加要素数据集ToolStripMenuItem_Click(object sender, EventArgs e)
           {
               System.Windows.Forms.OpenFileDialog openFileDialog = new System.Windows.Forms.OpenFileDialog();
               openFileDialog.InitialDirectory = "c:\\";
               openFileDialog.Filter = "Shapefiles (*.shp)|*.shp";
               openFileDialog.FilterIndex = 2;
               openFileDialog.RestoreDirectory = true;
               openFileDialog.Multiselect = false;
    
               if (openFileDialog.ShowDialog() == System.Windows.Forms.DialogResult.OK)
               {
                   string shapefileLocation = openFileDialog.FileName;
                   if (shapefileLocation != "")
                   {
                       IWorkspaceFactory workspaceFactory = new ShapefileWorkspaceFactoryClass();
                       IFeatureWorkspace featureWorkspace = (IFeatureWorkspace)workspaceFactory.OpenFromFile(System.IO.Path.GetDirectoryName(shapefileLocation), 0);
                       IFeatureClass featureClass = featureWorkspace.OpenFeatureClass(System.IO.Path.GetFileNameWithoutExtension(shapefileLocation));
                       IFeatureLayer featureLayer = new FeatureLayerClass();
                       featureLayer.FeatureClass = featureClass;
                       featureLayer.Name = featureClass.AliasName;
                       featureLayer.Visible = true;
                       IActiveView activeView = m_mapControl4.ActiveView;
                       activeView.FocusMap.AddLayer(featureLayer);
                       activeView.Extent = activeView.FullExtent;
                       activeView.PartialRefresh(esriViewDrawPhase.esriViewGeography, null, null);
                   }
                   else
                   {
                       System.Windows.Forms.MessageBox.Show("No shapefile chosen", "No Choice #1",
                                                           System.Windows.Forms.MessageBoxButtons.OK,
                                                           System.Windows.Forms.MessageBoxIcon.Exclamation);
                   }
               }
           }

# 添加栅格数据： #

private void 添加栅格数据ToolStripMenuItem_Click(object sender, EventArgs e)
           {
               string file, sfilepath, sfilename;
               object missing = Type.Missing;
               try
               {
                   OpenFileDialog OpenFileDialog1 = new OpenFileDialog();
                   OpenFileDialog1.Title = "选择要添加的数据文件";
                   OpenFileDialog1.Filter = "图像数据(*.jpg,*.bmp,*.gif)|*.jpg;*.bmp;*.gif";               
                   if (OpenFileDialog1.ShowDialog() == DialogResult.OK)
                   {
                       file = OpenFileDialog1.FileName;
                       sfilepath = file.Substring(0, file.LastIndexOf("\\"));
                       sfilename = file.Substring(file.LastIndexOf("\\") + 1, file.Length - file.LastIndexOf("\\") - 1);
                       IWorkspaceFactory WorkspaceFactory = new RasterWorkspaceFactoryClass();
                       IWorkspace Workspace = WorkspaceFactory.OpenFromFile(sfilepath, 0);
                       IRasterWorkspace RasterWorkspace = Workspace as IRasterWorkspace;
                       IRasterDataset RasterDataset = RasterWorkspace.OpenRasterDataset(sfilename);
                       IRaster Raster = RasterDataset.CreateDefaultRaster();
                       IRasterLayer RasterLayer = new RasterLayerClass();
                       RasterLayer.CreateFromRaster(Raster);
                       m_mapControl4.AddLayer(RasterLayer as ILayer, 0);
                       m_mapControl4.Refresh();
                   }
               }
               catch (Exception ex) { MessageBox.Show(ex.ToString()); }
           }

# 添加GDB数据： #

private void 添加GDB数据ToolStripMenuItem_Click(object sender, EventArgs e)
           {
               IFeatureWorkspace pFeatureWorkspace;
               IFeatureLayer pFeatureLayer;
               IFeatureDataset pFeatureDataset;
               FolderBrowserDialog addgdb = new FolderBrowserDialog();
               addgdb.SelectedPath = "";
               addgdb.ShowDialog();
               IWorkspaceFactory pFileGDBWorkspaceFactory = new FileGDBWorkspaceFactory();
               IWorkspace pWorkspace = pFileGDBWorkspaceFactory.OpenFromFile(addgdb.SelectedPath, 0);
               IFeatureWorkspace pFeatWorkspace = pWorkspace as IFeatureWorkspace;
               IEnumDataset pEnumDataset = pWorkspace.get_Datasets(ESRI.ArcGIS.Geodatabase.esriDatasetType.esriDTAny);
               pEnumDataset.Reset();
               IDataset pDataset = pEnumDataset.Next();
               if (pDataset is IFeatureDataset)
               {
                   pFeatureWorkspace = (IFeatureWorkspace)pFileGDBWorkspaceFactory.OpenFromFile(addgdb.SelectedPath, 0);
                   pFeatureDataset = pFeatureWorkspace.OpenFeatureDataset(pDataset.Name);
                   IEnumDataset pEnumDataset1 = pFeatureDataset.Subsets;
                   pEnumDataset1.Reset();
                   IDataset pDataset1 = pEnumDataset1.Next();
                   try
                   {
                       if (pDataset1 is IFeatureClass)
                       {
                           pFeatureLayer = new FeatureLayerClass();
                           pFeatureLayer.FeatureClass = pFeatureWorkspace.OpenFeatureClass(pDataset1.Name);
                           pFeatureLayer.Name = pFeatureLayer.FeatureClass.AliasName;
                           IActiveView activeView = m_mapControl4.ActiveView;
                           activeView.FocusMap.AddLayer(pFeatureLayer);
                           activeView.Extent = activeView.FullExtent;
                           activeView.PartialRefresh(esriViewDrawPhase.esriViewGeography, null, null);
    
                       }
                   }
                   catch (Exception ex) { return; }
               }
               addgdb.Dispose();
           }