public bool AddNewFields(myFieldEdit myField, IFieldsEdit pFields)
        {
            try
            {
                IFieldEdit pField = new FieldClass();

                if (myField.name.ToLower() == "objectid")
                {
                    pField.Type_2 = esriFieldType.esriFieldTypeInteger;
                }
                else
                {
                    pField.Type_2 = (esriFieldType)Enum.Parse(typeof(esriFieldType), myField.type);
                }

                //esriFieldType.esriFieldTypeInteger;

                pField.Name_2 = myField.name;
                if (myField.length != 0)
                {
                    pField.Length_2 = myField.length;
                }
                pFields.AddField(pField);
            }
            catch (Exception ex)
            {
                throw;
            }
            return(true);
        }
        public bool setNameAndGeotype(string className, esriGeometryType geoType, int sr, List <myFieldEdit> jsonFields, List <myFeatures> jsonFeatures)
        {
            this.FeatureClassName = className;
            this.GeometryType     = geoType; //(esriGeometryType)Enum.Parse(typeof(esriGeometryType),geoType);


            ISpatialReferenceFactory spatialReferenceFactory = new SpatialReferenceEnvironmentClass();
            ISpatialReference        spatialReference        =
                spatialReferenceFactory.CreateProjectedCoordinateSystem(sr);

            //添加字段
            IGeometryDefEdit pGeomDef = new GeometryDefClass();

            pGeomDef.GeometryType_2     = this.GeometryType;
            pGeomDef.SpatialReference_2 = spatialReference;
            //new UnknownCoordinateSystemClass();//
            this.Fields = new FieldsClass();

            IFieldEdit pField = new FieldClass();

            pField.Type_2        = esriFieldType.esriFieldTypeGeometry;
            pField.GeometryDef_2 = pGeomDef;
            pField.Name_2        = "Shape ";
            this.Fields.AddField(pField);


            for (int i = 0; i < jsonFields.Count; i++)
            {
                myFieldEdit myField = jsonFields[i];
                AddNewFields(myField, this.Fields);
            }

            string            folderName        = GetFloderName();
            IFeatureWorkspace pFeatureWorkspace = CreateFeatureWorkSpace(folderName);


            IFeatureClass pFeatureClass = CreateFeatureClass(pFeatureWorkspace, this.FeatureClassName, spatialReference,
                                                             esriFeatureType.esriFTSimple,
                                                             this.GeometryType, this.Fields, null, null, "");

            AddFeatures(pFeatureClass, jsonFeatures, jsonFields);

            MessageBox.Show("添加成功");
            return(true);
        }