1:        private void CreateShpFile()

   2:          {

   3:              IWorkspaceFactory pWF = new ShapefileWorkspaceFactoryClass();

   4:              //这个例子将shp所在文件夹定死了，在项目中会根据参数来设置。

   5:              //当所选的文件夹不存在的时候程序会报错。

   6:              IFeatureWorkspace pFWs = pWF.OpenFromFile(@"E:\1", 0) as IFeatureWorkspace;

   7:   

   8:              IFeatureClassDescription fcDescription = new FeatureClassDescriptionClass();

   9:              IObjectClassDescription ocDescription = fcDescription as IObjectClassDescription;

  10:   

  11:   

  12:   

  13:              IFields pFields = new ESRI.ArcGIS.Geodatabase.Fields();

  14:              IFieldsEdit pFieldsEdit = pFields as IFieldsEdit;

  15:              IField pField = new ESRI.ArcGIS.Geodatabase.Field();

  16:              IFieldEdit pFieldEdit = pField as IFieldEdit;

  17:   

  18:              //================这个部分是最重要的========================

  19:              //这段代码确定了这个shp文件的集合类型（polygon、polyline、point）

  20:              //这个字段的名称一定要设置，如果没有设置程序会出错。

  21:              //但是这个shp文件几何字段的名称并不是设置的这个。

  22:              IGeometryDef pGeometryDef = new GeometryDefClass();

  23:              IGeometryDefEdit pGeometryDefEdit = pGeometryDef as IGeometryDefEdit;

  24:              pGeometryDefEdit.GeometryType_2 = ESRI.ArcGIS.Geometry.esriGeometryType.esriGeometryPolygon;

  25:              pFieldEdit.Type_2 = esriFieldType.esriFieldTypeGeometry;

  26:              pFieldEdit.GeometryDef_2 = pGeometryDef;

  27:              pFieldEdit.Name_2 = "shape";

  28:              pFieldsEdit.AddField(pField);

  29:              //============================================================

  30:   

  31:              //==============添加OID字段=========================

  32:              pField = new ESRI.ArcGIS.Geodatabase.Field();

  33:              pFieldEdit = pField as IFieldEdit;

  34:              pFieldEdit.Name_2 = "OID";

  35:              pFieldEdit.Type_2 = esriFieldType.esriFieldTypeOID;

  36:              pFieldsEdit.AddField(pField);

  37:   

  38:              //==============添加WaHa字段，没有实际意义，只是为了测试========

  39:              pField = new ESRI.ArcGIS.Geodatabase.Field();

  40:              pFieldEdit = pField as IFieldEdit;

  41:              pFieldEdit.Type_2 = esriFieldType.esriFieldTypeString;

  42:              pFieldEdit.Name_2 = "WaHa";

  43:              pFieldEdit.Length_2 = 100;

  44:              pFieldsEdit.AddField(pField);

  45:   

  46:              //=============创建shp文件===================

  47:              IFeatureClass pFC = pFWs.CreateFeatureClass("123.shp", pFields, null, null, esriFeatureType.esriFTSimple, "Shape", "");

  48:              

  49:              //=============在shp文件中创建新记录=========

  50:              IFeature pFeature = pFC.CreateFeature();

  51:   

  52:   

  53:              //=========根据别人给的参数（这里是自己定死的）建立一个polygon字段值

  54:              object missing = Type.Missing;

  55:              IPointCollection pPc = new ESRI.ArcGIS.Geometry.Polygon();

  56:              IPoint point = new ESRI.ArcGIS.Geometry.Point();

  57:              point.X = 0;

  58:              point.Y = 0;

  59:              pPc.AddPoint(point, ref missing, ref missing);

  60:   

  61:              point = new ESRI.ArcGIS.Geometry.Point();

  62:              point.X = 10;

  63:              point.Y = 0;

  64:              pPc.AddPoint(point, ref missing, ref missing);

  65:   

  66:              point = new ESRI.ArcGIS.Geometry.Point();

  67:              point.X = 10;

  68:              point.Y = 10;

  69:              pPc.AddPoint(point, ref missing, ref missing);

  70:   

  71:              point = new ESRI.ArcGIS.Geometry.Point();

  72:              point.X = 0;

  73:              point.Y = 10;

  74:              pPc.AddPoint(point, ref missing, ref missing);

  75:   

  76:              point = new ESRI.ArcGIS.Geometry.Point();

  77:              point.X = 0;

  78:              point.Y = 0;

  79:              pPc.AddPoint(point, ref missing, ref missing);

  80:   

  81:              pFeature.Shape = pPc as IGeometry;

  82:              //对创建的这一行记录中的WaHa字段进行复制（值为abc）

  83:              pFeature.set_Value(pFeature.Fields.FindField("WaHa"), "abc");

  84:              //保存该记录

  85:              pFeature.Store();

  86:          }