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虫号: 1098247
注册: 2010-09-14
专业: 地理信息系统

[求助] IFeatureWorkSpace：CreatFeatureClass问题

在使用IFeatureWorkSpace：CreatFeatureClass接口时总提示：异常来自HRESULT：0x8004120E，原代码如下：

  public IFeatureLayer AddFeatureLayerByMemoryWS(ISpatialReference sp, DataTable Data)
      {
         //创建新的内存工作空间
         IWorkspaceFactory pWSF = new InMemoryWorkspaceFactoryClass();
         IWorkspaceName pWSName = pWSF.Create("", "Temp", null, 0);

         ESRI.ArcGIS.esriSystem.IName pName = (ESRI.ArcGIS.esriSystem.IName)pWSName;
         IWorkspace pMemoryWS = (IWorkspace)pName.Open();

         IFeatureLayer pFeatureLayer = new FeatureLayerClass();
         IFields pFields = new FieldsClass();
         IFieldsEdit pFieldsEdit;
         pFieldsEdit = (IFieldsEdit)pFields;

         IField pField = new FieldClass();
         IFieldEdit pFieldEdit = (IFieldEdit)pField;

            //定义图层中的若干属性
            pFieldEdit.Name_2 = "Shape";
            pFieldEdit.Type_2 = esriFieldType.esriFieldTypeGeometry;

            //定义空间几何对象类型
            IGeometryDef pGeometryDef = new GeometryDefClass();
            IGeometryDefEdit pGDefEdit = (IGeometryDefEdit)pGeometryDef;
            pGDefEdit.GeometryType_2 = esriGeometryType.esriGeometryPoint;
            pGDefEdit.SpatialReference_2 = sp;

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

            //添加自动站其他属性字段
            for (int i = 0; i < Data.Columns.Count; i++)
            {
                  pField = new FieldClass();
                  pFieldEdit = (IFieldEdit)pField;
                  pFieldEdit.Length_2 = 30;
                  pFieldEdit.Name_2 = Data.Columns.Caption;
                  pFieldEdit.Type_2 = esriFieldType.esriFieldTypeString;
                  pFieldsEdit.AddField(pField);
            }

            //创建要素类
            IFeatureClass pFeatureClass = null;
            //创建要素类
            IFeatureWorkspace pFeatureWorkspace = pMemoryWS as IFeatureWorkspace;
            pFeatureClass = pFeatureWorkspace.CreateFeatureClass("Temp",pFields,null,null,esriFeatureType.esriFTSimple,"SHAPE","";

            ………………
      }

请帮忙解决一下，谢谢！！