C# IWorkspace.get_DatasetNames方法代码示例

        public static void ExportToXml(IWorkspace sourceWorkspace, string targetPath,bool binaryGeometry,bool compressed,bool retriveMetadata)
        {
            // Open the source geodatabase and create a name object for it.
            IWorkspaceFactory workspaceFactory = new AccessWorkspaceFactoryClass();
            //IWorkspace workspace = workspaceFactory.OpenFromFile(databaseName, 0);
            IDataset workspaceDataset = (IDataset)sourceWorkspace;
            IName workspaceName = workspaceDataset.FullName;

            // Retrieve the first feature dataset from the workspace.
            IEnumDatasetName enumDatasetName = sourceWorkspace.get_DatasetNames
              (esriDatasetType.esriDTFeatureDataset);
            enumDatasetName.Reset();
            IName featureDatasetName = (IName)enumDatasetName.Next();
            if (featureDatasetName == null)
            {
                throw new Exception(
                  "No feature datasets exist in the specified geodatabase.");
            }

            // Create a new names enumerator and add the feature dataset name.
            IEnumNameEdit enumNameEdit = new NamesEnumeratorClass();
            enumNameEdit.Add(featureDatasetName);
            IEnumName enumName = (IEnumName)enumNameEdit;

            // Create a GeoDBDataTransfer object and create a name mapping.
            IGeoDBDataTransfer geoDBDataTransfer = new GeoDBDataTransferClass();
            IEnumNameMapping enumNameMapping = null;
            geoDBDataTransfer.GenerateNameMapping(enumName, workspaceName, out enumNameMapping);

            // Create an exporter and export the dataset with binary geometry, not compressed,
            // and including metadata.
            IGdbXmlExport gdbXmlExport = new GdbExporterClass();
            gdbXmlExport.ExportDatasets(enumNameMapping, targetPath, binaryGeometry, compressed, retriveMetadata);
        }

    internal static String[] GetFeatureClassNames(IWorkspace TheWrkspc)
    {
      String[] TheNames = new String[0];

      IEnumDatasetName TheFCNames;
      IDatasetName OneFCName;

      // iterate through all the Feature Datasets...
      IEnumDatasetName TheFDNames = TheWrkspc.get_DatasetNames(esriDatasetType.esriDTFeatureDataset);
      IDatasetName OneFDName = TheFDNames.Next();
      while (OneFDName != null)
      {

        // iterate through all the Feature Classes in the Dataset...
        TheFCNames = OneFDName.SubsetNames;
        OneFCName = TheFCNames.Next();
        while (OneFCName != null)
        {
          if (OneFCName.Type == esriDatasetType.esriDTFeatureClass)
          {
            // add each Feature Class name to the listbox
            System.Array.Resize<String>(ref TheNames, TheNames.Length + 1);
            TheNames[TheNames.Length - 1] = OneFCName.Name;
          }
          // ...and continue iterating...
          OneFCName = TheFCNames.Next();
        }

        // ...continue iterating through each feature dataset...
        OneFDName = TheFDNames.Next();
      }

      // now iterate through all the non-dataset feature classes...
      TheFCNames = TheWrkspc.get_DatasetNames(esriDatasetType.esriDTFeatureClass);
      OneFCName = TheFCNames.Next();
      while (OneFCName != null)
      {
        // add each feature class name to the listbox
        System.Array.Resize<String>(ref TheNames, TheNames.Length + 1);
        TheNames[TheNames.Length - 1] = OneFCName.Name;
        // ...and continue iterating...
        OneFCName = TheFCNames.Next();
      }

      return TheNames;
    }

        public Form2(IWorkspace Wspace,Form1 F)
        {
            InitializeComponent();
            f = F;
            WS = Wspace;

            IEnumDatasetName EDSN = Wspace.get_DatasetNames(esriDatasetType.esriDTFeatureClass);
            IDatasetName DSN = EDSN.Next();
            while (DSN != null)
            {
                string name = DSN.Name;
                listBoxFeatureClass.Items.Add(name);

                DSN = EDSN.Next();
            }
        }

        public static IDataset GetDataSet(IWorkspace inWorkspace, string objectname)
        {
            IEnumDatasetName enumDatasetName = inWorkspace.get_DatasetNames(esriDatasetType.esriDTAny);
            IDatasetName datasetName = enumDatasetName.Next();
            IDataset dataset = null;
            IFeatureWorkspace featureWorkspace = (IFeatureWorkspace)inWorkspace;
            while (datasetName != null)
            {
                if (datasetName.Name == objectname)
                {
                    if (datasetName.Type == esriDatasetType.esriDTFeatureClass)
                        dataset = (IDataset)featureWorkspace.OpenFeatureClass(objectname);
                    else
                        dataset = (IDataset)featureWorkspace.OpenTable(objectname);
                    return dataset;
                }

                datasetName = enumDatasetName.Next();

            }

            return null;
        }

        private void TestConnectSDEData(string server, string instance,string database, string user, string password, string version)
        {
            try
            {
                m_pWorkspaceFactory = new  SdeWorkspaceFactoryClass();
                m_pPropSet = new PropertySetClass();
                //���ãӣģ�����������Ϣ
                m_pPropSet.SetProperty("SERVER", server);
                m_pPropSet.SetProperty("INSTANCE", instance);
                m_pPropSet.SetProperty("Database", database);
                m_pPropSet.SetProperty("User", user);
                m_pPropSet.SetProperty("password", password);
                m_pPropSet.SetProperty("version", version);
                m_pWorkspace = m_pWorkspaceFactory.Open(m_pPropSet, 0);
                m_pFeatureWorkspace = m_pWorkspace as  IFeatureWorkspace;
                /////////////////////////////////////////////////////////
                IEnumDatasetName pEnumDSName = m_pWorkspace.get_DatasetNames(esriDatasetType.esriDTFeatureDataset);
                IDatasetName pSDEDsName = pEnumDSName.Next();
                treeView1.Nodes.Clear();
                TreeNode node1;
                while (pSDEDsName != null)
                {
                    node1=treeView1.Nodes.Add(pSDEDsName.Name);
                    LoadAllFeatClass(node1,pSDEDsName.Name );
                    pSDEDsName = pEnumDSName.Next();
                }

            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);

            }
        }

        public static List<String> QueryFeatureClassName(IWorkspace pWorkspace, bool pUpperCase, bool pEscapeMetaTable)
        {
            try
            {
                String ownerName = "";
                if (pWorkspace.Type == esriWorkspaceType.esriRemoteDatabaseWorkspace)
                {
                    ownerName = pWorkspace.ConnectionProperties.GetProperty("user").ToString();
                    ownerName = ownerName.ToUpper();
                }
                List<String> sc = new List<String>();
                IEnumDatasetName edn = pWorkspace.get_DatasetNames(esriDatasetType.esriDTFeatureDataset);
                IDatasetName dn = edn.Next();
                while (dn != null)
                {
                    string dsName = dn.Name.ToUpper();
                    if (ownerName.Equals(LayerHelper.GetClassOwnerName(dsName)))
                    {
                        #region 添加数据集下面的FeatureClass
                        IEnumDatasetName fdn = dn.SubsetNames;

                        dn = fdn.Next();
                        while (dn != null)
                        {
                            dsName = dn.Name.ToUpper();
                            bool isTopology = dn is ITopologyName;
                            if (!isTopology)
                            {
                                string shortName = LayerHelper.GetClassShortName(dsName);
                                if (pUpperCase)
                                {
                                    shortName = shortName.ToUpper();
                                }
                                if (pEscapeMetaTable)
                                {

                                }
                                else
                                {
                                    sc.Add(shortName);
                                }
                            }
                            dn = fdn.Next();
                        }
                        #endregion
                    }
                    dn = edn.Next();
                }
                #region 获取直接的FeatureClass
                edn = pWorkspace.get_DatasetNames(esriDatasetType.esriDTFeatureClass);
                dn = edn.Next();
                while (dn != null)
                {
                    string dsName = dn.Name.ToUpper();
                    if (ownerName.Equals(LayerHelper.GetClassOwnerName(dsName)))
                    {
                        string shortName = LayerHelper.GetClassShortName(dsName);
                        if (pUpperCase)
                        {
                            shortName = shortName.ToUpper();
                        }
                        if (pEscapeMetaTable)
                        {

                        }
                        else
                        {
                            sc.Add(shortName);
                        }
                    }
                    dn = edn.Next();
                }
                #endregion
                return sc;
            }
            catch (Exception ex) { return null; }
        }

 private static IEnumerable<string> GetFeatureDataSetNames(IWorkspace workspace)
 {
     IEnumDatasetName datasetNames = workspace.get_DatasetNames(esriDatasetType.esriDTFeatureDataset);
     IDatasetName name = datasetNames.Next();
     while (name != null)
     {
         yield return name.Name;
         name = datasetNames.Next();
     }
 }

        private void txtWorkspace_ButtonClick(object sender, DevExpress.XtraEditors.Controls.ButtonPressedEventArgs e)
        {
            m_Workspace = null;
            switch (m_SelectedWorkspaceType)
            {
                case enumWorkspaceType.SDE:
                    FrmSDESetting frmSetting = new FrmSDESetting();
                    if (m_SDEPropertySet != null)
                        frmSetting.SDEPropertySet = m_SDEPropertySet;

                    if (frmSetting.ShowDialog(this) != DialogResult.OK)
                        return;

                    m_SDEPropertySet = frmSetting.SDEPropertySet;
                    txtWorkspace.Text = Utility.WorkspaceHelper.PropertySetToString(m_SDEPropertySet);
                    m_Workspace = Utility.WorkspaceHelper.OpenWorkspace(enumWorkspaceType.SDE, m_SDEPropertySet);

                    break;

                case enumWorkspaceType.FileGDB:
                    if (folderBrowserWorkspace.ShowDialog(this) != DialogResult.OK)
                        return;

                    txtWorkspace.Text = folderBrowserWorkspace.SelectedPath;
                    m_Workspace = Utility.WorkspaceHelper.OpenWorkspace(enumWorkspaceType.FileGDB, folderBrowserWorkspace.SelectedPath);

                    break;

                case enumWorkspaceType.PGDB:
                    dlgWorkspace.Filter = "PGDB |*.mdb";
                    if (dlgWorkspace.ShowDialog(this) != DialogResult.OK)
                        return;

                    txtWorkspace.Text = dlgWorkspace.FileName;
                    m_Workspace = Utility.WorkspaceHelper.OpenWorkspace(enumWorkspaceType.PGDB, dlgWorkspace.FileName);

                    break;

                case enumWorkspaceType.File:
                    if (this.m_PathType == enumPathType.Feature)
                    {
                        dlgWorkspace.Filter = "Shp |*.shp";                    }
                    else
                    {
                        dlgWorkspace.Filter = "所有类型|*.jpg;*.bmp;*.tif;*.img;*.png;*.ovr;";
                    }
                    if (dlgWorkspace.ShowDialog(this) != DialogResult.OK)
                        return;

                    txtWorkspace.Text = dlgWorkspace.FileName;
                    m_Workspace = Utility.WorkspaceHelper.OpenWorkspace(enumWorkspaceType.File, System.IO.Path.GetDirectoryName(dlgWorkspace.FileName));
                    string strName=System.IO.Path.GetFileName(dlgWorkspace.FileName);
                    cmbClass.Properties.Items.Clear();
                    cmbClass.Properties.Items.Add(strName);
                    cmbClass.Text = strName;

                    // Shp / 文件栅格的话到此为止
                    return;

            }

            // 判断
            if (m_Workspace == null)
            {
                XtraMessageBox.Show("非正确的数据库！");
                return;
            }

            // 加载Dataset
            cmbDataset.Properties.Items.Clear();
            cmbDataset.Properties.Items.Add("");
            esriDatasetType dsType = (this.m_PathType == enumPathType.Feature ? esriDatasetType.esriDTFeatureDataset : esriDatasetType.esriDTRasterCatalog);
            IEnumDatasetName enDatasetName = m_Workspace.get_DatasetNames(dsType);
            IDatasetName dsName = enDatasetName.Next();
            while (dsName != null)
            {
                cmbDataset.Properties.Items.Add(dsName.Name);
                dsName = enDatasetName.Next();
            }
        }

        /// <summary>
        /// 重置图层数据源
        /// </summary>
        /// <param name="pLayer"></param>
        /// <param name="pNewWksp"></param>
        /// <returns></returns>
        public static bool ResetLayerDatasource(IDataLayer2 pLayer, IWorkspace pNewWksp)
        {
            if (pLayer == null || pNewWksp == null) return false;

            //// 2012-06-15 张航宇
            //// 直接获取Layer的数据源名称，从新的Workspace打开FeatureClass进行替换
            //IDatasetName fClassName = pLayer.DataSourceName as IDatasetName;
            //if (fClassName != null)
            //{
            //    string strClassName = fClassName.Name;
            //    try
            //    {
            //        IFeatureClass fClass = (pNewWksp as IFeatureWorkspace).OpenFeatureClass(strClassName);
            //        pLayer.DataSourceName = (fClass as IDataset).FullName;
            //    }
            //    catch
            //    {
            //        return false;
            //    }
            //}

            IEnumDatasetName pEnumDsName = pNewWksp.get_DatasetNames(esriDatasetType.esriDTFeatureDataset);
            IDatasetName pFtDsName = pEnumDsName.Next();
            try
            {
                if (!pLayer.InWorkspace(pNewWksp))
                {
                    IFeatureClassName pOldName = pLayer.DataSourceName as IFeatureClassName;
                    // 2012-06-15 张航宇
                    // 修改对没有Dataset的Workspace，直接将Workspace重置
                    if (pOldName != null)
                    {
                        if (pOldName.FeatureDatasetName == null || pFtDsName == null)
                        {
                            (pOldName as IDatasetName).WorkspaceName = (pNewWksp as IDataset).FullName as IWorkspaceName;
                        }
                        else
                        {
                            pOldName.FeatureDatasetName = pFtDsName;
                            pOldName.FeatureDatasetName.WorkspaceName = ((IDataset)pNewWksp).FullName as IWorkspaceName;
                        }
                    }
                    pLayer.Connect(pOldName as IName);
                }
            }
            catch (Exception exp)
            {
                Hy.Common.Utility.Log.OperationalLogManager.AppendMessage(exp.ToString());

                return false;
            }
            return true;
        }

        /// <summary>
        /// Gets the dataset name objects from the workspace.
        /// </summary>
        /// <param name="workspace">The workspace from which to get the dataset name objects.</param>
        /// <param name="type">The type of datasets for which to get the name objects.</param>
        /// <returns>Returns a dictionary of dataset names by qualified name.</returns>
        public static IDictionary<string, IDatasetName> GetNetworkDSNames(IWorkspace workspace, string[] nwkDSNames, string fdsName, ref IDictionary<string, int> objClassIdByName)
        {
            IDictionary<string, IDatasetName> dnames = new Dictionary<string, IDatasetName>();
            objClassIdByName = new Dictionary<string, int>();
            try
            {
                if (workspace != null)
                {
                    IEnumDatasetName names = workspace.get_DatasetNames(esriDatasetType.esriDTFeatureDataset);
                    names.Reset();

                    IDatasetName name = names.Next();
                    try
                    {
                        while (name != null)
                        {
                            string key = DisplayMap.GetQualifiedName(name, workspace);
                            if (string.Compare(key, fdsName, true) == 0)
                            {
                                GetDatasetNames(workspace, name, esriDatasetType.esriDTAny, nwkDSNames, ref dnames, ref objClassIdByName);
                                break;
                            }
                            name = names.Next();
                        }
                    }
                    catch (Exception e)
                    {
                        // _logger.LogAndDisplayException(e);
                    }
                }
                // else
                // _logger.LogFormat("{0}: Null workspace parameter.", methodName, LogLevel.enumLogLevelWarn);
            }
            catch (Exception e)
            {
                // _logger.LogAndDisplayException(e);
            }
            return dnames;
        }

        /// <summary>
        /// determins if a feature exists
        /// wks = IWorkspace; ftr = ftrn name no extention
        /// </summary>
        /// <param name="wks">IWorkspace</param>
        /// <param name="ftr">name of the feature not extension</param>
        /// <returns>true if exist otherwise false</returns>
        public bool ftrExists(IWorkspace wks, string ftr)
        {
            bool x = false;
            try
            {
                if (wks != null)
                {
                    //Console.WriteLine(wks.PathName);
                    //Console.WriteLine(ftr);
                    //Console.WriteLine(wks.WorkspaceFactory.WorkspaceType);
                    IEnumDatasetName dtsne = wks.get_DatasetNames(esriDatasetType.esriDTAny);
                    IDatasetName dtsn = dtsne.Next();
                    IEnumDatasetName subdtsne = null;
                    IDatasetName subdtsn = null;
                    while (dtsn != null)
                    {
                        //Console.WriteLine(dtsn.Name);
                        if (dtsn.Type == esriDatasetType.esriDTFeatureDataset)
                        {
                            subdtsne = dtsn.SubsetNames;
                            subdtsn = subdtsne.Next();
                            while (subdtsn != null)
                            {
                                if (subdtsn.Name.ToLower() == ftr.ToLower())
                                {
                                    x = true;
                                    break;
                                }
                                subdtsn = subdtsne.Next();

                            }
                            if (x == true) break;
                        }
                        else
                        {
                            if (dtsn.Name.ToLower() == ftr.ToLower())
                            {
                                x = true;
                                break;
                            }
                        }
                        dtsn = dtsne.Next();
                    }
                }
            }
            catch (Exception e)
            {
                Console.WriteLine("Error: " + e.ToString());
            }
            return x;
        }

        private void txtWorkspace_ButtonClick(object sender, DevExpress.XtraEditors.Controls.ButtonPressedEventArgs e)
        {
            m_Workspace = null;
            switch (m_SelectedWorkspaceType)
            {
                case enumWorkspaceType.SDE:
                    FrmSDESetting frmSetting = new FrmSDESetting();
                    if (m_SDEPropertySet != null)
                        frmSetting.SDEPropertySet = m_SDEPropertySet;

                    if (frmSetting.ShowDialog(this) != DialogResult.OK)
                        return;

                    m_SDEPropertySet = frmSetting.SDEPropertySet;
                    txtWorkspace.Text = Hy.Esri.Utility.WorkspaceHelper.PropertySetToString(m_SDEPropertySet);
                    m_Workspace = Hy.Esri.Utility.WorkspaceHelper.OpenWorkspace(enumWorkspaceType.SDE, m_SDEPropertySet);

                    break;

                case enumWorkspaceType.FileGDB:
                    if (folderBrowserWorkspace.ShowDialog(this) != DialogResult.OK)
                        return;

                    txtWorkspace.Text = folderBrowserWorkspace.SelectedPath;
                    m_Workspace = Hy.Esri.Utility.WorkspaceHelper.OpenWorkspace(enumWorkspaceType.FileGDB, folderBrowserWorkspace.SelectedPath);

                    break;

                case enumWorkspaceType.PGDB:
                    dlgWorkspace.Filter = "PGDB |*.mdb";
                    if (dlgWorkspace.ShowDialog(this) != DialogResult.OK)
                        return;

                    txtWorkspace.Text = dlgWorkspace.FileName;
                    m_Workspace = Hy.Esri.Utility.WorkspaceHelper.OpenWorkspace(enumWorkspaceType.PGDB, dlgWorkspace.FileName);

                    break;

                case enumWorkspaceType.File:
                    if (folderBrowserWorkspace.ShowDialog(this) != DialogResult.OK)
                        return;

                    txtWorkspace.Text = folderBrowserWorkspace.SelectedPath;
                    m_Workspace = Hy.Esri.Utility.WorkspaceHelper.OpenWorkspace(enumWorkspaceType.File, folderBrowserWorkspace.SelectedPath);

                    break;
            }

            // 判断
            if (m_Workspace == null)
            {
                XtraMessageBox.Show("非正确的数据库！");
                return;
            }

            // 加载Dataset
            cmbDataset.Properties.Items.Clear();
            cmbDataset.Properties.Items.Add("");
            IEnumDatasetName enDatasetName = m_Workspace.get_DatasetNames(esriDatasetType.esriDTFeatureDataset);
            IDatasetName dsName = enDatasetName.Next();
            while (dsName != null)
            {
                cmbDataset.Properties.Items.Add(dsName.Name);

                //System.Runtime.InteropServices.Marshal.FinalReleaseComObject(dsName);
                dsName = enDatasetName.Next();
            }
            //System.Runtime.InteropServices.Marshal.FinalReleaseComObject(dsName);
            //System.Runtime.InteropServices.Marshal.FinalReleaseComObject(enDatasetName);
        }

        private void BtConnectarClick(object sender, EventArgs e)
        {
            Ws = null;
            _pPropSet = new PropertySetClass();
            _pSdeFact = new SdeWorkspaceFactory();
            _pPropSet.SetProperty("SERVER", txtBoxServer.Text);
            _pPropSet.SetProperty("INSTANCE", txtBoxInstancia.Text);
            _pPropSet.SetProperty("DATABASE", txtBoxDB.Text);
            _pPropSet.SetProperty("USER", txtBoxUsuario.Text);
            _pPropSet.SetProperty("PASSWORD", txtBoxPassword.Text);
            _pPropSet.SetProperty("VERSION", txtBoxVersao.Text);

            try
            {
                System.Windows.Forms.Cursor.Current = Cursors.WaitCursor;
                Ws = _pSdeFact.Open(_pPropSet, 0);

                treeViewDatasets.Nodes.Clear();
                treeViewTables.Nodes.Clear();

                if (chkBoxFeatueClass.Checked)
                    _enumDsFeatureClasses = Ws.get_DatasetNames(esriDatasetType.esriDTFeatureDataset);

                if (chkBoxTables.Checked)
                    _enumDsTables = Ws.get_DatasetNames(esriDatasetType.esriDTTable);

                if (_enumDsFeatureClasses != null)
                {
                    IDatasetName dsName = _enumDsFeatureClasses.Next();
                    while (dsName != null)
                    {
                        treeViewDatasets.Nodes.Add(dsName.Name);
                        dsName = _enumDsFeatureClasses.Next();
                    }
                }

                if (_enumDsTables != null)
                {
                    IDatasetName dsName = _enumDsTables.Next();
                    while (dsName != null)
                    {
                        treeViewTables.Nodes.Add(dsName.Name);
                        dsName = _enumDsTables.Next();
                    }
                }

                btGerar.Enabled = true;
            }
            catch (Exception ex)
            {
                MessageBox.Show("Impossible to Connect" + "\n\n" + ex.Message);
            }
            finally
            {
                System.Windows.Forms.Cursor.Current = Cursors.Default;
            }
        }

        public static IRelationshipClass GetRelationshipClass(IWorkspace inWorkspace, string objectname)
        {
            IEnumDatasetName enumDatasetName = inWorkspace.get_DatasetNames(esriDatasetType.esriDTAny);
            IDatasetName datasetName = enumDatasetName.Next();
            IDataset dataset = null;
            IFeatureWorkspace featureWorkspace = (IFeatureWorkspace)inWorkspace;
            while (datasetName != null)
            {
                if (datasetName.Name == objectname)
                {
                    if (datasetName.Type == esriDatasetType.esriDTRelationshipClass)
                    {
                        dataset = (IDataset)featureWorkspace.OpenRelationshipClass(objectname);
                        return (IRelationshipClass)dataset;
                    }
                }

                datasetName = enumDatasetName.Next();

            }

            return null;
        }