ArcEngine創建ShapeFile文件

public static void CreateShapeFile(string strShapeFolder, string strShapeName, string wkt)
{

//打開工作空間
const string strShapeFieldName = "shape";

IWorkspaceFactory pWSF = new ShapefileWorkspaceFactoryClass();
IFeatureWorkspace pWS = (IFeatureWorkspace)pWSF.OpenFromFile(strShapeFolder, 0);

//設置字段集
IFields pFields = new FieldsClass();
IFieldsEdit pFieldsEdit = (IFieldsEdit)pFields;

//設置字段
IField pField = new FieldClass();
IFieldEdit pFieldEdit = (IFieldEdit)pField;

//創建類型為幾何類型的字段
pFieldEdit.Name_2 = strShapeFieldName;
pFieldEdit.Type_2 = esriFieldType.esriFieldTypeGeometry;

//為esriFieldTypeGeometry類型的字段創建幾何定義，包括類型和空間參照
IGeometryDef pGeoDef = new GeometryDefClass(); //The geometry definition for the field if IsGeometry is TRUE.
IGeometryDefEdit pGeoDefEdit = (IGeometryDefEdit)pGeoDef;
pGeoDefEdit.GeometryType_2 = esriGeometryType.esriGeometryPolygon;
pGeoDefEdit.SpatialReference_2 = new UnknownCoordinateSystemClass();

//ISpatialReferenceFactory2 pSpaRefFactory = new SpatialReferenceEnvironmentClass();
//pSpaRefFactory.CreateESRISpatialReferenceFromPRJFile(@"E:\temp\Suzhou_1954_3_Degree_GK_CM_120E.prj");

pFieldEdit.GeometryDef_2 = pGeoDef;
pFieldsEdit.AddField(pField);

//添加其他的字段
pField = new FieldClass();
pFieldEdit = (IFieldEdit)pField;
pFieldEdit.Name_2 = "wkt";
pFieldEdit.Type_2 = esriFieldType.esriFieldTypeString;
pFieldsEdit.AddField(pField);

IField pField2 = new FieldClass();
IFieldEdit pFieldEdit2 = (IFieldEdit)pField2;
pFieldEdit2.Type_2 = esriFieldType.esriFieldTypeOID;
pFieldsEdit.AddField(pField2);

IField pField3 = new FieldClass();
IFieldEdit pFieldEdit3 = (IFieldEdit)pField3;
pFieldEdit3.Name_2 = "str1";
pFieldEdit3.Type_2 = esriFieldType.esriFieldTypeString;
pFieldsEdit.AddField(pField3);

IField pField4 = new FieldClass();
IFieldEdit pFieldEdit4 = (IFieldEdit)pField4;
pFieldEdit4.Name_2 = "str2";
pFieldEdit4.Type_2 = esriFieldType.esriFieldTypeString;
pFieldsEdit.AddField(pField4);

//創建shapefile
pWS.CreateFeatureClass(strShapeName, pFields, null, null, esriFeatureType.esriFTSimple, strShapeFieldName, "");

//IFeatureClass pointFC = Common.CreateFeatureClass(pointfeatureClassName, pointtype, sr, pFWS, fieldList);
}