C#AE加载GDB数据

打开数据库所在文件夹

FolderBrowserDialog folderBrowserDialog = new FolderBrowserDialog();
            folderBrowserDialog.Description = "打开GDB文件夹";
            if (DialogResult.OK == folderBrowserDialog.ShowDialog())
            {
                if (Directory.Exists(folderBrowserDialog.SelectedPath))
                {
                    if (folderBrowserDialog.SelectedPath.ToUpper().Contains(".GDB"))
                    {
                        openFullPath = folderBrowserDialog.SelectedPath;
                    }
                }
            }
            IFeatureWorkspace featureWorkspace;
            IWorkspaceFactory workspaceFactory;
            try
            {
                IFeatureLayer pFeatureLayer = new FeatureLayerClass();
                IWorkspace pWorkspace;
                workspaceFactory = new FileGDBWorkspaceFactoryClass();
                //加载独立要素类，若无则不执行while循环
                pWorkspace = workspaceFactory.OpenFromFile(openFullPath, 0);
                featureWorkspace = pWorkspace as IFeatureWorkspace;
                IEnumDataset Temp_AllIndependentFeatureClass = pWorkspace.get_Datasets(esriDatasetType.esriDTFeatureClass);
                IFeatureClass Each_IndependentFeatureClass = Temp_AllIndependentFeatureClass.Next() as IFeatureClass;
                while (Each_IndependentFeatureClass != null)
                {
                    pFeatureLayer = new FeatureLayerClass();
                    pFeatureLayer.FeatureClass = featureWorkspace.OpenFeatureClass(Each_IndependentFeatureClass.AliasName);
                    pFeatureLayer.Name = pFeatureLayer.FeatureClass.AliasName;
                    axMapControl1.AddLayer(pFeatureLayer as ILayer);
                    axMapControl1.Refresh();
                    Each_IndependentFeatureClass = Temp_AllIndependentFeatureClass.Next() as IFeatureClass;
                }
                // 如果数据集是IFeatureDataset,则遍历它下面的子类 
                // 打开工作空间并遍历数据集 
                pWorkspace = workspaceFactory.OpenFromFile(openFullPath, 0);
                IEnumDataset pEnumDataset = pWorkspace.get_Datasets(ESRI.ArcGIS.Geodatabase.esriDatasetType.esriDTFeatureDataset);
                pEnumDataset.Reset();
                IDataset pDataset = pEnumDataset.Next();
                if (pDataset is IFeatureDataset)
                {
                    IFeatureDataset pFeatureDataset = featureWorkspace.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)
                    {
                        while (pDataset1 != null)
                        {
                            pFeatureLayer = new FeatureLayerClass();
                            pFeatureLayer.FeatureClass = featureWorkspace.OpenFeatureClass(pDataset1.Name);
                            pFeatureLayer.Name = pFeatureLayer.FeatureClass.AliasName;
                            axMapControl1.Map.AddLayer(pFeatureLayer);
                            axMapControl1.ActiveView.Refresh();
                            pDataset1 = pEnumDataset1.Next();
                        }
                    }
                    else
                    {
                        MessageBox.Show("No FeatureLayer!");
                    }
                }
            }
            catch
            {
                MessageBox.Show("加载GDB失败！", "提示");
            }