C# FieldClass类代码示例

        private void 添加点型图层ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            //创建要素类
            #region 创建新的内存工作空间
            IWorkspaceFactory pWSF = new InMemoryWorkspaceFactoryClass();
            IWorkspaceName pWSName = pWSF.Create("", "Temp", null, 0);

            IName pName = (IName)pWSName;
            IWorkspace pMemoryWS = (IWorkspace)pName.Open();
            #endregion

            IField oField = new FieldClass();
            IFields oFields = new FieldsClass();
            IFieldsEdit oFieldsEdit = null;
            IFieldEdit oFieldEdit = null;
            IFeatureClass oFeatureClass = null;
            IFeatureLayer oFeatureLayer = null;

            oFieldsEdit = oFields as IFieldsEdit;
            oFieldEdit = oField as IFieldEdit;
            oFieldEdit.Name_2 = "OBJECTID";
            oFieldEdit.Type_2 = esriFieldType.esriFieldTypeOID;
            oFieldEdit.IsNullable_2 = false;
            oFieldEdit.Required_2 = false;
            oFieldsEdit.AddField(oField);

            oField = new FieldClass();
            oFieldEdit = oField as IFieldEdit;
            IGeometryDef pGeoDef = new GeometryDefClass();
            IGeometryDefEdit pGeoDefEdit = (IGeometryDefEdit)pGeoDef;
            pGeoDefEdit.AvgNumPoints_2 = 5;
            pGeoDefEdit.GeometryType_2 = esriGeometryType.esriGeometryPoint;
            pGeoDefEdit.GridCount_2 = 1;
            pGeoDefEdit.HasM_2 = false;
            pGeoDefEdit.HasZ_2 = false;
            pGeoDefEdit.SpatialReference_2 = axMapControl1.SpatialReference;
            oFieldEdit.Name_2 = "SHAPE";
            oFieldEdit.Type_2 = esriFieldType.esriFieldTypeGeometry;
            oFieldEdit.GeometryDef_2 = pGeoDef;
            oFieldEdit.IsNullable_2 = true;
            oFieldEdit.Required_2 = true;
            oFieldsEdit.AddField(oField);

            oField = new FieldClass();
            oFieldEdit = oField as IFieldEdit;
            oFieldEdit.Name_2 = "Code";
            oFieldEdit.Type_2 = esriFieldType.esriFieldTypeSmallInteger;
            //oFieldEdit.Length = 10;
            oFieldEdit.IsNullable_2 = true;
            oFieldsEdit.AddField(oField);
            //创建要素类
            oFeatureClass = (pMemoryWS as IFeatureWorkspace).CreateFeatureClass("Temp", oFields, null, null, esriFeatureType.esriFTSimple, "SHAPE", "");
            oFeatureLayer = new FeatureLayerClass();
            oFeatureLayer.Name = "PointLayer";
            oFeatureLayer.FeatureClass = oFeatureClass;
            //创建唯一值符号化对象


            IUniqueValueRenderer pURender = new UniqueValueRendererClass();
            pURender.FieldCount = 1;
            pURender.set_Field(0, "Code");
            pURender.UseDefaultSymbol = false;
            //创建SimpleMarkerSymbolClass对象
            ISimpleMarkerSymbol pSimpleMarkerSymbol = new SimpleMarkerSymbolClass();
            //创建RgbColorClass对象为pSimpleMarkerSymbol设置颜色
            IRgbColor pRgbColor = new RgbColorClass();
            pRgbColor.Red = 255;
            pSimpleMarkerSymbol.Color = pRgbColor as IColor;
            //设置pSimpleMarkerSymbol对象的符号类型，选择钻石
            pSimpleMarkerSymbol.Style = esriSimpleMarkerStyle.esriSMSDiamond;
            //设置pSimpleMarkerSymbol对象大小，设置为５
            pSimpleMarkerSymbol.Size = 5;
            //显示外框线
            pSimpleMarkerSymbol.Outline = true;
            //为外框线设置颜色
            IRgbColor pLineRgbColor = new RgbColorClass();
            pLineRgbColor.Green = 255;
            pSimpleMarkerSymbol.OutlineColor = pLineRgbColor as IColor;
            //设置外框线的宽度
            pSimpleMarkerSymbol.OutlineSize = 1; 

            //半透明颜色

 


            pURender.AddValue("1", "", pSimpleMarkerSymbol as ISymbol);

            //唯一值符号化内存图层
            (oFeatureLayer as IGeoFeatureLayer).Renderer = pURender as IFeatureRenderer;
            ILayerEffects pLyrEffect = oFeatureLayer as ILayerEffects;
            //透明度
            pLyrEffect.Transparency = 0;


            oFeatureLayer.Visible = true;

            this.axMapControl1.AddLayer(oFeatureLayer,axMapControl1.LayerCount);
            insertpoint = true;
        }

        //http://resources.esri.com/help/9.3/arcgisengine/arcobjects/esriGeoDatabase/IFeatureWorkspace.CreateFeatureClass_Example.htm
        static IFeatureClass CreateFeatureClass(string name, IFeatureWorkspace ftrSpc, esriGeometryType type, int epsg, List<dynamic> extraFields)
        {
            IFeatureClass ftrc = null;
            if(null != ftrSpc && null != name)
            {
                IFieldsEdit flds = new FieldsClass();
                flds.FieldCount_2 = 2 + (extraFields == null ? 0 : extraFields.Count);

                IFieldEdit fld = new FieldClass();
                fld.Name_2 = OBJECT_ID;
                fld.Type_2 = esriFieldType.esriFieldTypeOID;
                flds.Field_2[0] = fld;

                fld = new FieldClass();
                fld.Name_2 = SHP_NAME;
                fld.Type_2 = esriFieldType.esriFieldTypeGeometry;
                fld.GeometryDef_2 = CreateGeometryDef(type, epsg);
                flds.Field_2[1] = fld;
                int eidx = 2;
                foreach(var efld in extraFields)
                {
                    fld = new FieldClass();
                    fld.Name_2 = efld.Name;
                    fld.Type_2 = efld.Type;
                    flds.Field_2[eidx++] = fld;
                }
                ftrc = ftrSpc.CreateFeatureClass(name, flds, null, null, esriFeatureType.esriFTSimple, SHP_NAME, null);
            }
            return ftrc;
        }

        private void addScoreToolStripMenuItem_Click(object sender, EventArgs e)
        {
            IFeatureLayer fealyr = axMapControl1.get_Layer(0) as IFeatureLayer;
            IFeatureClass feacls = fealyr.FeatureClass;
            IField field = new FieldClass();
            IFieldEdit2 fe = field as IFieldEdit2;
            fe.Name_2 = "FinalScore";
            fe.Type_2 = esriFieldType.esriFieldTypeDouble;

            feacls.AddField(field);
            int index = feacls.FindField("FinalScore");
            object obj = null;
            Random rand = new Random();
            using (ComReleaser com = new ComReleaser())
            {

                IFeatureCursor cursor = feacls.Search(null, true);
                com.ManageLifetime(cursor);

                IFeature fea = cursor.NextFeature();
                while (fea != null)
                {
                    obj = rand.NextDouble() * 100;
                    fea.set_Value(index, obj);
                    fea.Store();
                    fea = cursor.NextFeature();
                }
            }
        }

        public static IFeatureClass CreateFClassInPDB(IWorkspace accessworkspace, string feaDSname, string FCname, esriGeometryType esriGeometryType,ISpatialReference sprf)
        {
            try
            {
                IFeatureDataset featureDataset = ((IFeatureWorkspace)accessworkspace).OpenFeatureDataset(feaDSname);
                //IGeoDataset geoDataset = featureDataset as IGeoDataset;

                IFields pFields = new FieldsClass();
                IFieldsEdit pFieldsEdit = pFields as IFieldsEdit;
                IField pField = new FieldClass();
                IFieldEdit pFieldEdit = pField as IFieldEdit;
                pFieldEdit.Name_2 = "SHAPE";
                pFieldEdit.Type_2 = esriFieldType.esriFieldTypeGeometry;

                IGeometryDef pGeometryDef = new GeometryDefClass();
                IGeometryDefEdit pGeometryDefEdit = pGeometryDef as IGeometryDefEdit;
                pGeometryDefEdit.GeometryType_2 = esriGeometryType.esriGeometryPoint;
                pFieldEdit.GeometryDef_2 = pGeometryDef;
                pFieldsEdit.AddField(pField);

                IFeatureClass fc = featureDataset.CreateFeatureClass(FCname, pFields, null, null, esriFeatureType.esriFTSimple, "Shape", "");
                return fc;
            }

            catch (Exception ee)
            {
                MessageBox.Show(ee.Message.ToString());
                return null;
            }
        }

        static IFeatureClass CreateFeatureClass(IFeatureWorkspace workspace, string name, ISpatialReference outSR)
        {
            IFieldsEdit fields = new FieldsClass();

            IFieldEdit field = new FieldClass();
            field.Type_2 = esriFieldType.esriFieldTypeOID;
            field.Name_2 = "OBJECTID";
            field.AliasName_2 = "OBJECTID";
            fields.AddField(field);

            IGeometryDefEdit geom = new GeometryDefClass();
            geom.GeometryType_2 = esriGeometryType.esriGeometryPolygon;
            geom.SpatialReference_2 = outSR;
            geom.HasM_2 = true;
            geom.HasZ_2 = false;

            field = new FieldClass();
            field.Name_2 = "SHAPE";
            field.AliasName_2 = "SHAPE";
            field.Type_2 = esriFieldType.esriFieldTypeGeometry;
            field.GeometryDef_2 = geom;
            fields.AddField(field);

            return workspace.CreateFeatureClass(name, fields, null, null, esriFeatureType.esriFTSimple, "SHAPE", "");
        }

 public static void AddField(this IFields fields, string name, esriFieldType type)
 {
     IFieldEdit fe = new FieldClass();
     fe.Name_2 = name;
     fe.Type_2 = type;
     ((IFieldsEdit)fields).AddField((IField)fe);
 }

        /// <summary>
        /// �½���ͼ��
        /// </summary>
        public void CreatePointLayer()
        {
            SaveFileDialog sfdPoint = new SaveFileDialog();
            sfdPoint.Title = "��ѡ���ͼ��Ĵ洢λ��";
            sfdPoint.Filter = "Shapefile(*.shp)|*.shp|All files(*.*)|*.*";
            sfdPoint.RestoreDirectory = true;
            if (sfdPoint.ShowDialog() == DialogResult.OK)
            {
                LocalFilePath = sfdPoint.FileName;
                FilePath = System.IO.Path.GetDirectoryName(LocalFilePath);
                FileName = System.IO.Path.GetFileName(LocalFilePath);

                IFields pFields = new FieldsClass();
                IFieldsEdit pFieldsEdit = pFields as IFieldsEdit;
                IField pField = new FieldClass();
                IFieldEdit pFieldEdit = pField as IFieldEdit;
                pFieldEdit.Name_2 = "SHAPE";
                pFieldEdit.Type_2 = esriFieldType.esriFieldTypeGeometry;

                IGeometryDef pGeometryDef = new GeometryDefClass();
                IGeometryDefEdit pGeometryDefEdit = pGeometryDef as IGeometryDefEdit;
                pGeometryDefEdit.GeometryType_2 = esriGeometryType.esriGeometryPoint;
                pFieldEdit.GeometryDef_2 = pGeometryDef;
                pFieldsEdit.AddField(pField);

                IWorkspaceFactory pWorkspaceFactory = new ShapefileWorkspaceFactoryClass();
                IFeatureWorkspace pFeatureWorkspace = pWorkspaceFactory.OpenFromFile(FilePath, 0) as IFeatureWorkspace;
                pFeatureWorkspace.CreateFeatureClass(FileName, pFields, null, null, esriFeatureType.esriFTSimple, "SHAPE", "");
                m_mapControl.AddShapeFile(FilePath, FileName);
                m_mapControl.ActiveView.Refresh();
            }
        }

        private static void RunGPFieldMapping()
        {
            // Initialize the Geoprocessor
            ESRI.ArcGIS.Geoprocessor.Geoprocessor GP = new ESRI.ArcGIS.Geoprocessor.Geoprocessor();
            GP.OverwriteOutput = true;

            // Create the GPUtilites object
            IGPUtilities gputilities = new GPUtilitiesClass();

            // Create a DETable data element object 
            IDETable inputTableA = (IDETable)gputilities.MakeDataElement(@"C:\data\citiblocks.gdb\census", null, null);

            // Create an array of input tables
            IArray inputtables = new ArrayClass();
            inputtables.Add(inputTableA);

            // Initialize the GPFieldMapping
            IGPFieldMapping fieldmapping = new GPFieldMappingClass();
            fieldmapping.Initialize(inputtables, null);

            // Create a new output field
            IFieldEdit trackidfield = new FieldClass();
            trackidfield.Name_2 = "TRACTID";
            trackidfield.Type_2 = esriFieldType.esriFieldTypeString;
            trackidfield.Length_2 = 50;

            // Create a new FieldMap
            IGPFieldMap trackid = new GPFieldMapClass();
            trackid.OutputField = trackidfield;

            // Find field map "STFID" containing the input field "STFID". Add input field to the new field map.
            int fieldmap_index = fieldmapping.FindFieldMap("STFID");
            IGPFieldMap stfid_fieldmap = fieldmapping.GetFieldMap(fieldmap_index);
            int field_index = stfid_fieldmap.FindInputField(inputTableA, "STFID");
            IField inputField = stfid_fieldmap.GetField(field_index);
            trackid.AddInputField(inputTableA, inputField, 5, 10);

            // Add the new field map to the field mapping
            fieldmapping.AddFieldMap(trackid);

            // Execute Table to Table tool using the FieldMapping
            TableToTable tblTotbl = new TableToTable();
            tblTotbl.in_rows = inputTableA;
            tblTotbl.out_path = @"C:\data\citiblocks.gdb";
            tblTotbl.out_name = "census_out";
            tblTotbl.field_mapping = fieldmapping;

            object sev = null;
            try
            {
                GP.Execute(tblTotbl, null);
                System.Windows.Forms.MessageBox.Show(GP.GetMessages(ref sev));
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
                System.Windows.Forms.MessageBox.Show(GP.GetMessages(ref sev));
            }
        }

        protected override void OnClick()
        {
            string tablePath = Path.Combine(DataPath, @"Geodatabase\ManhattanKS.gdb\ParcelIDs");
            string tableName = Path.GetFileName(tablePath);
            const string searchField = "PID";

            Type factoryType = Type.GetTypeFromProgID("esriDataSourcesGDB.FileGDBWorkspaceFactory");
            IWorkspaceFactory workspaceFactory = Activator.CreateInstance(factoryType) as IWorkspaceFactory;
            IWorkspace workspace = workspaceFactory.OpenFromFile(Path.GetDirectoryName(tablePath), 0);

            IObjectClassDescription objClassDesc = new ObjectClassDescriptionClass();

            IFields fields = objClassDesc.RequiredFields;
            IFieldsEdit fieldsEdit = (IFieldsEdit) fields;

            IField field = new FieldClass();
            IFieldEdit fieldEdit = (IFieldEdit) field;

            fieldEdit.Name_2 = searchField;
            fieldEdit.Type_2 = esriFieldType.esriFieldTypeString;
            fieldEdit.IsNullable_2 = true;
            fieldEdit.AliasName_2 = searchField;
            fieldEdit.Editable_2 = true;
            fieldEdit.Length_2 = 250;

            fieldsEdit.AddField(field);
            fields = fieldsEdit;

            ITable table = CreateTable((IWorkspace2) workspace, tableName, fields);

            using (ComReleaser releaser = new ComReleaser())
            {
                ICursor cursor = table.Insert(true);
                releaser.ManageLifetime(cursor);

                string txtPath = Path.Combine(DataPath, "UniqueValues.txt");
                int searchFieldIndex = table.FindField(searchField);

                IRowBuffer buffer = table.CreateRowBuffer();

                using (StreamReader reader = new StreamReader(txtPath))
                {
                    string line;
                    while ((line = reader.ReadLine()) != null)
                    {
                        string id = line.Split(new[] {'.', ' '}, StringSplitOptions.RemoveEmptyEntries)[1];
                        buffer.Value[searchFieldIndex] = id;
                        cursor.InsertRow(buffer);
                    }

                    cursor.Flush();
                }
            }

            ((ITableCollection) ArcMap.Document.FocusMap).AddTable(table);
            ArcMap.Document.UpdateContents();
            Marshal.FinalReleaseComObject(table);
        }

 public static IField CreateIntField(string pFieldName, int pFieldLen)
 {
     FieldClass class2 = new FieldClass();
     IFieldEdit edit = class2;
     edit.Name_2 = pFieldName;
     edit.Precision_2 = pFieldLen;
     edit.Type_2 = esriFieldType.esriFieldTypeInteger;
     return class2;
 }

        /// <summary>
        /// create feature class of output
        /// </summary>
        /// <param name="workspace">object workspace</param>
        /// <param name="spatialReference">spatial reference of feature class of output</param>
        /// <param name="nameFeatureClass">name of feature class</param>
        /// <returns>object feature class</returns>
        private static IFeatureClass CreateFeatureClassOutput(IWorkspace workspace, ISpatialReference spatialReference, string nameFeatureClass)
        {
            IFeatureClassDescription featureClassDescription = new FeatureClassDescriptionClass();
            IObjectClassDescription objectClassDescription = (IObjectClassDescription)featureClassDescription;

            IFeatureWorkspace featureWorkspace = (IFeatureWorkspace)workspace;

            // Create the fields collection.
            IFields fields = new FieldsClass();
            IFieldsEdit fieldsEdit = (IFieldsEdit)fields;

            IField oidField = new FieldClass();
            IFieldEdit oidFieldEdit = (IFieldEdit)oidField;
            oidFieldEdit.Name_2 = "OBJECTID";
            oidFieldEdit.Type_2 = esriFieldType.esriFieldTypeOID;
            fieldsEdit.AddField(oidField);

            // Create the Shape field.
            IField shapeField = new Field();
            IFieldEdit shapeFieldEdit = (IFieldEdit)shapeField;

            // Set up the geometry definition for the Shape field.
            IGeometryDef geometryDef = new GeometryDefClass();
            IGeometryDefEdit geometryDefEdit = (IGeometryDefEdit)geometryDef;
            geometryDefEdit.GeometryType_2 = esriGeometryType.esriGeometryPolygon;

            // By setting the grid size to 0, you're allowing ArcGIS to determine the appropriate grid sizes for the feature class.
            // If in a personal geodatabase, the grid size will be 1000. If in a file or ArcSDE geodatabase, the grid size
            // will be based on the initial loading or inserting of features.
            geometryDefEdit.HasM_2 = false;
            geometryDefEdit.HasZ_2 = false;

            geometryDefEdit.SpatialReference_2 = spatialReference;

            // Set standard field properties.
            shapeFieldEdit.Name_2 = featureClassDescription.ShapeFieldName;
            shapeFieldEdit.Type_2 = esriFieldType.esriFieldTypeGeometry;
            shapeFieldEdit.GeometryDef_2 = geometryDef;
            shapeFieldEdit.IsNullable_2 = true;
            shapeFieldEdit.Required_2 = true;
            fieldsEdit.AddField(shapeField);

            IField idField = new FieldClass();
            IFieldEdit idIsolaFieldEdit = (IFieldEdit)idField;
            idIsolaFieldEdit.Name_2 = Program.nameFieldIdOutput;
            idIsolaFieldEdit.Type_2 = esriFieldType.esriFieldTypeInteger;
            fieldsEdit.AddField(idField);

            // Use IFieldChecker to create a validated fields collection.
            IFieldChecker fieldChecker = new FieldCheckerClass();
            IEnumFieldError enumFieldError = null;
            IFields validatedFields = null;
            fieldChecker.ValidateWorkspace = workspace;
            fieldChecker.Validate(fields, out enumFieldError, out validatedFields);

            return featureWorkspace.CreateFeatureClass(nameFeatureClass, fields, objectClassDescription.InstanceCLSID, objectClassDescription.ClassExtensionCLSID, esriFeatureType.esriFTSimple, featureClassDescription.ShapeFieldName, string.Empty);
        }

 // Methods
 public static IField CreateDoubleField(string pFieldName, int pFieldLen, int pFieldScale)
 {
     FieldClass class2 = new FieldClass();
     IFieldEdit edit = class2;
     edit.Name_2 = pFieldName;
     edit.Type_2 = esriFieldType.esriFieldTypeDouble;
     edit.Precision_2 = pFieldLen;
     edit.Scale_2 = pFieldScale;
     return class2;
 }

 public  void AddField(IFeatureClass pFeatureClass,string fieldName,esriFieldType fieldType)
 {
     //如果存在不必添加字段，直接返回
     if (pFeatureClass.FieldExistCheck(fieldName)) return;
     var pField = new FieldClass();
     var pFieldEdit = (IFieldEdit)pField;
     pFieldEdit.Name_2 = fieldName;
     pFieldEdit.Type_2 = fieldType;  
     pFeatureClass.AddField(pFieldEdit);
 }

        public IFeatureClass CreatePolygonFile(String strFolder, String filename, IEnvelope pEnvBorder, ISpatialReference pSR)
        {
            // Open the folder to contain the shapefile as a workspace
            IWorkspaceFactory pWF = new ESRI.ArcGIS.DataSourcesFile.ShapefileWorkspaceFactoryClass();
            IFeatureWorkspace pfws = (IFeatureWorkspace)pWF.OpenFromFile(strFolder, 0);

            //Set up a simple fields collection
            IField pField = new FieldClass();
            IFieldEdit pFieldEdit = (IFieldEdit)pField;
            IFields pFields = new FieldsClass();
            IFieldsEdit pFieldsEdit = (IFieldsEdit)pFields;

            // Make the shape field
            //it will need a geometry definition, with a spatial reference

            pFieldEdit.Name_2 = "Shape";
            pFieldEdit.Type_2 = esriFieldType.esriFieldTypeGeometry;

            IGeometryDef pGeomDef = new GeometryDef();
            IGeometryDefEdit pGeomDefEdit = (IGeometryDefEdit)pGeomDef;

            pGeomDefEdit.GeometryType_2 = esriGeometryType.esriGeometryPolygon;
            pGeomDefEdit.SpatialReference_2 = pSR;

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

            // Add ID field
            IField pFieldOID = new Field();
            pFieldEdit = (IFieldEdit)pFieldOID;
            pFieldEdit.Name_2 = "OBJECTID";
            pFieldEdit.Type_2 = esriFieldType.esriFieldTypeOID;
            pFieldEdit.IsNullable_2 = false;

            pFieldsEdit.AddField(pFieldOID);

            //EulerPoleReFrmgwn eulerfrm=new EulerPoleReFrmgwn();

            if (File.Exists(strFolder + filename + ".shp") == true)
            {
                DialogResult result = MessageBox.Show("There is a shapefile have the same name in this foler, do you want to overwrite it?", "", MessageBoxButtons.OKCancel);
                if (result == DialogResult.OK)
                {
                    File.Delete(strFolder + filename);

                }
                else
                {
                    return null;
                }
            }

            IFeatureClass pFeatclass = pfws.CreateFeatureClass(filename, pFields, null, null, esriFeatureType.esriFTSimple, "Shape", "");
            return pFeatclass;
        }

        //添加字段并赋值
        private void AddField()
        {
            //添加温度字段
            string HighTemp = "HighTemperature";
            string LowTemp = "LowTemperature";
            IFeatureLayer lyrProVince = Utilities.GetLayerByName("省市", axMapControl1.Map) as IFeatureLayer;
            IFeatureClass ProClass = lyrProVince.FeatureClass; ;
            if (ProClass.Fields.FindField(HighTemp) < 0)
            {
                IField pField = new FieldClass();
                IFieldEdit pFieldEdit = pField as IFieldEdit;
                pFieldEdit.Name_2 = HighTemp;
                pFieldEdit.Type_2 = esriFieldType.esriFieldTypeDouble;
                IClass pClass = ProClass as IClass;
                pClass.AddField(pFieldEdit);
            }
            if (ProClass.Fields.FindField(LowTemp) < 0)
            {
                IField pField = new FieldClass();
                IFieldEdit pFieldEdit = pField as IFieldEdit;
                pFieldEdit.Name_2 = LowTemp;
                pFieldEdit.Type_2 = esriFieldType.esriFieldTypeDouble;
                IClass pClass = ProClass as IClass;
                pClass.AddField(pFieldEdit);

            }
            //为字段赋值
            string[] provinces = new string[] { "黑龙江省", "内蒙古自治区", "新疆维吾尔自治区", "吉林省", "甘肃省", "河北省", "北京市", "山西省", "天津市", "陕西省", "宁夏回族自治区", "青海省", "辽宁省", "山东省", "西藏自治区", "河南省", "江苏省", "安徽省", "四川省", "湖北省", "重庆市", "上海市", "浙江省", "湖南省", "江西省", "云南省", "贵州省", "广西壮族自治区", "福建省", "台湾省", "海南省", "广东省", "香港特别行政区", "澳门" };
            TomorrowWeatherInfo weath;

            IFeatureCursor featCursor = null;
            IQueryFilter queryFilter = new QueryFilterClass();
            for (int i = 0; i < provinces.Length; i++)
            {
                string selCity = provinces[i];
                string whereClause = "[NAME] = '" + selCity + "'";
                queryFilter.WhereClause = whereClause;
                featCursor = ProClass.Search(queryFilter, false);
                IFeature pFeature = featCursor.NextFeature();
                string pcity = Utilities.getCity(selCity);
                weath = new TomorrowWeatherInfo(pcity);

                Random random=new Random();//测试用随机数产生器
                if (pFeature != null)
                {
                    pFeature.set_Value(pFeature.Fields.FindField("HighTemperature"), random.Next(20,40));
                    pFeature.set_Value(pFeature.Fields.FindField("LowTemperature"), random.Next(1,20));
                    pFeature.Store();
                }
            }
            IGeoFeatureLayer geoProVince = Utilities.GetLayerByName("省市", axMapControl1.Map) as IGeoFeatureLayer;
            setColor(geoProVince);
        }