ArcEngine实现MDB转GDB

ArcEngine实现MDB格式数据转GDB格式有多种方式，可以创建GDB数据后，读取MDB，利用gp工具中featureClassToFeatureClass的逐个图层进行复制，但这种方式对于图层较多的数据来讲，转换速度较慢，而且实践后发现制图表达信息会丢失。经研究，发现gp工具中的copy工具可以很方便的实现数据类型转换。代码如下：

       // mdb转gdb
       public void ConvertMDBToGDB(string mdbPath, string gdbPath)
        {
            IWorkspaceFactory sourceWsF = new AccessWorkspaceFactoryClass();
            IWorkspace sourceWs = sourceWsF.OpenFromFile(mdbPath, 0);

            IWorkspaceFactory targetWsF = new FileGDBWorkspaceFactoryClass();
            IWorkspaceName workspaceName = targetWsF.Create(Path.GetDirectoryName(gdbPath), Path.GetFileName(gdbPath), null, 0);

            Geoprocessor geoprocessor = new Geoprocessor();
            geoprocessor.OverwriteOutput = true;
            
            var sourceFcs = GeoHelper.GetDatasets(sourceWs).Distinct().ToList();
            foreach (var fn in sourceFcs)
            {
                ESRI.ArcGIS.DataManagementTools.Copy copyTool = new ESRI.ArcGIS.DataManagementTools.Copy();
                copyTool.in_data = string.Format("{0}\\{1}", mdbPath, fn);  //两项参数均为“路径/数据集名”
                copyTool.out_data = string.Format("{0}\\{1}", gdbPath, fn);

                try
                {
                    geoprocessor.Execute(copyTool, null);
                    Console.WriteLine("数据集 {0} 复制成功!", fn);
                }
                catch (Exception ex)
                {
                    Console.WriteLine("{0}", ex.Message);
                    for (int k = 0; k < geoprocessor.MessageCount; k++)
                        Console.WriteLine("{0}", geoprocessor.GetMessage(k));
                }
            }
        }

        //获取所有要素图层名
        public static List<string> GetDatasets(IWorkspace ws, bool isAddSetName = false)
        {
            var lns = new List<string>();
            var datasets = ws.Datasets[esriDatasetType.esriDTAny];
            IDataset dataset;
            while ((dataset = datasets.Next()) != null)
            {
                lns.Add(dataset.Name);
            }
            return lns;
        }

类似的，GDB转MDB也可以参考上述方法。