テーブル結合したテーブルをエクスポート

//レイヤからFeatureClassNameオブジェクトを取得
IMap pMap = ArcMap.Document.FocusMap;
IFeatureLayer pFeatureLayer = (IFeatureLayer)pMap.get_Layer(0);
IDisplayTable pDisplayTable = (IDisplayTable)pFeatureLayer;
IDataset pDataset = (IDataset)pDisplayTable.DisplayTable;
IDatasetName inputDatasetName = (IDatasetName)pDataset.FullName;

//出力ワークスペースネームの作成
IWorkspaceName outputWorkspaceName = new WorkspaceNameClass();
outputWorkspaceName.WorkspaceFactoryProgID = "esriDataSourcesFile.ShapefileWorkspaceFactory";  //シェープファイルの場合
outputWorkspaceName.PathName = @"C:\Temp\";

//出力フィーチャクラスネームの作成
IFeatureClassName outputFeatureClassName = new FeatureClassNameClass();
IDatasetName outputDatasetName = (IDatasetName)outputFeatureClassName;
outputFeatureClassName.FeatureType =esriFeatureType.esriFTSimple;
outputFeatureClassName.ShapeType = pFeatureLayer.FeatureClass.ShapeType;
outputFeatureClassName.ShapeFieldName = "Shape";
outputDatasetName.WorkspaceName = outputWorkspaceName;
outputDatasetName.Name = "Output3";  //出力フィーチャクラス名

////フィーチャクラスのコンバート
//IFeatureDataConverter pFeatureDataConverter = new FeatureDataConverterClass();
//pFeatureDataConverter.ConvertFeatureClass(inputDatasetName, null, null, outputFeatureClassName, null, null, "", 1000, 0);

////フィーチャクラスのコンバート
IExportOperation pExportOperation = new ExportOperationClass();
pExportOperation.ExportFeatureClass(inputDatasetName, null, null, null, outputFeatureClassName, 0);