using?System;
using?System.Collections.Generic;
using?System.Linq;
using?System.Text;

using?System.ComponentModel;
using?System.Data;
using?System.Drawing;

using?System.Windows.Forms;

using?ESRI.ArcGIS.Carto;
using?ESRI.ArcGIS.Controls;
using?ESRI.ArcGIS.Display;
using?ESRI.ArcGIS.esriSystem;
using?ESRI.ArcGIS.Geometry;
using?ESRI.ArcGIS.Output;
using?ESRI.ArcGIS.SystemUI;
using?ESRI.ArcGIS.Geodatabase;
using?ESRI.ArcGIS.DataSourcesFile;

namespace?bianji
{
????class?ExportToShp
????{
????????public?string?shpPath;
????????//internal?void?ExportFeatureClassToShp（ESRI.ArcGIS.Geodatabase.IFeatureClass?pFeatureClass?string?strFullPath?string?filePath）
????????//{
????????//????//throw?new?NotImplementedException（）;
????????????
????????????public?void?ExportFeatureClassToShp（IFeatureClass?apFeatureClass?string?ExportShapeFileNamestring?ExportFilePath）
????????{
???????
????????????if?（apFeatureClass?==?null）
????????????{
????????????????MessageBox.Show（“請選擇“?“系統提示“）;
????????????????return;
????????????}
????????????if?（ExportShapeFileName?==?““）
????????????????return;


????????????string??ExportFileShortName?=?System.IO.Path.GetFileNameWithoutExtension（ExportShapeFileName）;
????????????ExportFilePath?=?System.IO.Path.GetDirectoryName（ExportShapeFileName）;
????????????shpPath?=?ExportFilePath?+?“\\“?+?ExportFileShortName?+?“\\“?+?ExportFileShortName?+?“.shp“;
????????????//設置導出要素類的參數??????????
????????????IFeatureClassName?pOutFeatureClassName?=?new?FeatureClassNameClass（）;
????????????IDataset?pOutDataset?=?（IDataset）apFeatureClass;
????????????pOutFeatureClassName?=?（IFeatureClassName）pOutDataset.FullName;
????????????//創建一個輸出shp文件的工作空間
????????????IWorkspaceFactory?pShpWorkspaceFactory?=?new?ShapefileWorkspaceFactoryClass（）;
????????????IWorkspaceName?pInWorkspaceName?=?new?WorkspaceNameClass（）;
????????????pInWorkspaceName?=?pShpWorkspaceFactory.Create（ExportFilePath?ExportFileShortName?null?0）;

????????????//創建一個要素集合
????????????IFeatureDatasetName?pInFeatureDatasetName?=?null;
????????????//創建一個要素類
????????????IFeatureClassName?pInFeatureClassName?=?new?FeatureClassNameClass（）;
????????????IDatasetName?pInDatasetClassName;
????????????pInDatasetClassName?=?（IDatasetName）pInFeatureClassName;
????????????pInDatasetClassName.Name?=?ExportFileShortName;//作為輸出參數
????????????pInDatasetClassName.WorkspaceName?=?pInWorkspaceName;
????????????//通過FIELDCHECKER檢查字段的合法性，為輸出SHP獲得字段集合
????????????long?iCounter;
????????????IFields?pOutFields?pInFields;
????????????IFieldChecker?pFieldChecker;
????????????IField?pGeoField;
????????????IEnumFieldError?pEnumFieldError?=?null;
????????????pInFields?=?apFeatureClass.Fields;
????????????pFieldChecker?=?new?FieldChecker（）;
????????????pFieldChecker.Validate（pInFields?out?pEnumFieldError?out?pOutFields）;
????????????//通過循環查找幾何字段
????????????pGeoField?=?null;
????????????for?（iCounter?=?0;?iCounter?