Provides access to members of a GP Data Type.它提供了进入一个GP数据类型的成员的通道。
Product Availability
Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.
When To Use什么时候才需要使用该接口呢？
The IGPDataType interface is used to define the data type for each parameter to a geoprocessing tool. Some examples of data types include FeatureClass, Table, and Raster.
IGPDataType接口用于为地理处理工具(GPTool)的每个参数定义数据类型。数据类型的一些示例包括FeatureClass、Table和Raster。
The data type is an object used to specify and manage the values passed in as input to a geoprocessing function. For example, in ModelBuilder datatypes are used to determine if a given model variable is valid input to a geoprocessing tool.
数据类型是一个对象，用于指定和管理作为输入传递给地理处理函数的值。例如，在ModelBuilder中，数据类型用于确定给定的模型变量是否为地理处理工具的有效输入。
Data types are used to provide a way to generate and validate the parameter values. For every data type there is a IGPValue object. IGPValue objects are the actual inputs to a geoprocessing tool.
数据类型用于提供生成和验证参数值的方法。对于每个数据类型都有一个IGPValue的对象。IGPValue对象是真正传入geoprocessing工具的输入。
A complete example of defining the parameter data types is available in the article, Building Geoprocessing Function Tools.
See also IGPValue.
Members
| Description | ||
|---|---|---|
 |
ControlCLSID | The COM class id of the data type. |
 |
CreateValue | Creates a geoprocessing value object from the given string. |
|
DisplayName | The descriptive, user-friendly name. |
|
FullName | The associated Name object. |
|
HelpContext | The context identifier of the topic within the help file. |
|
HelpFile | The name of the (CHM) file containing help information. |
|
MetadataFile | The name of the (XML) file containing the default metadata for this data type. |
|
Name | The name of the data type. |
|
ValidateDataType | Validates if a given geoprocessing data type object is valid. |
|
ValidateValue | Validates if a given geoprocessing value object is the correct data type. |
Classes that implement IGPDataType实现了IGPDataType接口的类
| Classes | Description |
|---|---|
| DEAddressLocatorType (esriLocation) | The Address Locator Data Type. |
| DEArcInfoTableType (esriDataSourcesFile) | ArcInfo Table Data Element object Type. |
| DECadastralFabricType (esriGeoDatabaseExtensions) | Esri Cadastral Fabric Data Element Type Object. |
| DECadDrawingDatasetType (esriDataSourcesFile) | CadDrawing Dataset Data Element object Type. |
| DECatalogRootType (esriDataSourcesFile) | CatalogRootType Data Element object Type. |
| DECoverageFeatureClassType (esriDataSourcesFile) | CoverageFeatureClass Data Element object Type. |
| DECoverageType (esriDataSourcesFile) | Coverage Data Element object Type. |
| DEDatasetType (esriGeoprocessing) | Dataset Data Element Data Type. |
| DEDbaseTableType (esriDataSourcesFile) | Dbase Table Data Element object Type. |
| DEDiskConnectionType (esriDataSourcesFile) | Disk Connection Data Element object Type. |
| DEFeatureClassType | Feature Class Data Element object Type. |
| DEFeatureDatasetType | Feature Dataset Data Element object Type. |
| DEFileType (esriDataSourcesFile) | File Data Element object Type. |
| DEFolderType (esriDataSourcesFile) | Folder Data Element object Type. |
| DEGeoDataServerType | GeoDataServer Object Data Element object type. |
| DEGeoDatasetType (esriGeoprocessing) | GeoDataset Data Element Data Type. |
| DEGeometricNetworkType | GeometricNetwork Data Type object. |
| DEGeometryServerType | GeometryServer Object Data Element object type. |
| DEGlobeServerType | MapServer Object Data Element object type. |
| DEGPServerType | MapServer Object Data Element object type. |
| DEImageServerType (esriDataSourcesRaster) | Image Service Object Data Element object Type. |
| DELasDatasetType (esriDataSourcesFile) | LAS Dataset Data Element object Type. |
| DELayerType (esriDataSourcesFile) | Layer Data Element object Type. |
| DEMapDocumentType (esriDataSourcesFile) | MapDocument Data Element object Type. |
| DEMapServerType | MapServer Object Data Element object type. |
| DEMosaicDatasetType (esriDataSourcesRaster) | The MosaicDataset Data Element object Type. |
| DENetworkDatasetType | Network Dataset Data Element Type object. |
| DEPrjFileType (esriDataSourcesFile) | Projection File Data Element object Type. |
| DERasterBandType | RasterBand Data Element object Type. |
| DERasterCatalogType | Raster Catalog Data Element Type object. |
| DERasterDatasetType | RasterDataset Data Element object Type. |
| DERelationshipClassType | RelationshipClass Class Data Element object Type. |
| DERemoteDatabaseFolderType (esriDataSourcesFile) | Remote Database Folder Data Element object Type. |
| DESchematicDatasetType (esriSchematic) | Schematic Dataset Data Element object Type. |
| DESchematicDiagramType (esriSchematic) | Schematic Diagram Data Element object Type. |
| DESchematicFolderType (esriSchematic) | Schematic Folder Data Element object Type. |
| DEServerConnectionType | ServerConnection Object Data Element object type. |
| DEShapeFileType (esriDataSourcesFile) | ShapeFile Data Element object Type. |
| DESpatialReferencesFolderType (esriDataSourcesFile) | Spatial References Folder Data Element object Type. |
| DETableType | Table Data Element object Type. |
| DETerrainType (esriGeoDatabaseExtensions) | Terrain Data Element object Type. |
| DETextFileType (esriDataSourcesFile) | Text File Data Element object Type. |
| DETinType (esriDataSourcesFile) | Tin Data Element object Type. |
| DEToolboxType (esriGeoprocessing) | The toolbox Data Type. |
| DEToolType (esriGeoprocessing) | The tool Data Type. |
| DETopologyType | |
| DEType (esriGeoprocessing) | Data Element Data Type. |
| DEVPFCoverageType (esriDataSourcesFile) | DEVPFCoverage Dataset Data Element object Type. |
| DEVPFTableType (esriDataSourcesFile) | VPFTable Data Element object Type. |
| DEWCSCoverageType (esriDataSourcesRaster) | WCS Coverage Object Data Element object Type. |
| DEWMSMapType (esriDataSourcesRaster) | WMS Map Data Element object Type. |
| DEWorkspaceType | Workspace Data Element object Type. |
| FieldType | Field Data Element object Type. |
| FMEDatasetType (esriDataInterop) | FMEDatasetType Class |
| FMEDestDatasetType (esriDataInterop) | FMEDestDatasetType Class |
| FMESourceDatasetType (esriDataInterop) | FMESourceDatasetType Class |
| GPAddressLocatorStyleType (esriLocation) | The Address Locator Style Type. |
| GPAnalysisCellSizeType (esriGeoprocessing) | GeoProcessor Analysis CellSize Type object. |
| GPArcInfoItemType (esriDataSourcesFile) | ArcInfo Item Data Element object Type. |
| GPArealUnitType (esriGeoprocessing) | Geoprocessing Areal Unit Data Type. |
| GPBooleanType (esriGeoprocessing) | Geoprocessing Boolean Data Type. |
| GPCadastralFabricLayerType (esriGeoprocessing) | Geoprocessing Cadastral Fabric Layer Data Type. |
| GPCalculatorExpressionType (esriGeoprocessing) | Geoprocessing Field Calc Expression Data Type. |
| GPCellSizeXYType (esriGeoprocessing) | Geoprocessing Point Data Type. |
| GPCompositeDataType (esriGeoprocessing) | Geoprocessing Composite Data Type. |
| GPCompositeLayerType (esriGeoprocessing) | Geoprocessing Composite Layer Data Type. |
| GPCoordinateSystemType (esriGeoprocessing) | Geoprocessing Coordinate System Data Type. |
| GPDataFileType (esriGeoprocessing) | Data File Type. |
| GPDateType (esriGeoprocessing) | Geoprocessing Date Data Type. |
| GPDoubleType (esriGeoprocessing) | Geoprocessing Double Data Type. |
| GPEncryptedStringType (esriGeoprocessing) | Geoprocessing String Data Type. |
| GPEnvelopeType (esriGeoprocessing) | Geoprocessing Envelope Data Type. |
| GPEvaluationScaleType (esriSpatialAnalyst) | GeoProcessor EvaluationScale Type object. |
| GPExtentType (esriGeoprocessing) | Geoprocessing Extent Data Type. |
| GPFeatureLayerType (esriGeoprocessing) | Geoprocessing Feature Layer Data Type. |
| GPFeatureRecordSetLayerType (esriGeoprocessing) | Feature Record Set Layer Data Type. |
| GPFieldInfoType (esriGeoprocessing) | Geoprocessing Field Info Data Type. |
| GPFieldMappingType (esriGeoprocessing) | Geoprocessing Field Map Data Type. |
| GPGALayerType (esriGeoStatisticalAnalyst) | Geoprocessing Geostatistical layer type object. |
| GPGroupLayerType (esriGeoprocessing) | Geoprocessing Group Layer Data Type. |
| GPINFOExpressionType (esriGeoprocessing) | Geoprocessing INFO Expression Data Type. |
| GPLasDatasetLayerType (esriGeoprocessing) | Geoprocessing Las Dataset Layer Data Type. |
| GPLayerType (esriGeoprocessing) | Geoprocessing Layer Data Type. |
| GPLinearUnitType (esriGeoprocessing) | Geoprocessing Linear Unit Data Type. |
| GPLineType (esriGeoprocessing) | Geoprocessing Line Data Type. |
| GPLongType (esriGeoprocessing) | Geoprocessing Long Integer Data Type. |
| GPMDomainType (esriGeoprocessing) | Geoprocessing M Domain Data Type. |
| GPMosaicLayerType (esriGeoprocessing) | Geoprocessing Mosaic Layer Data Type. |
| GPMultiValueType (esriGeoprocessing) | Geoprocessing Multi-Value Data Type. |
| GPNAHierarchySettingsType (esriNetworkAnalyst) | Geoprocessing network hierarchy settings data type. |
| GPNALayerType (esriNetworkAnalyst) | Geoprocessing network analyst layer data type. |
| GPNetworkDatasetLayerType (esriGeoprocessing) | Network Dataset Layer Type object. |
| GPPointType (esriGeoprocessing) | Geoprocessing Point Data Type. |
| GPPolygonType (esriGeoprocessing) | Geoprocessing Polygon Data Type. |
| GPRandomNumberGeneratorType (esriGeoprocessing) | Geoprocessing Random Number Generator Data Type. |
| GPRasterBuilderType (esriGeoprocessing) | Raster Builder Data Type. |
| GPRasterCalculatorExpressionType (esriSpatialAnalyst) | GeoProcessor Spatial Analyst GPRasterCalculatorExpression Type object. |
| GPRasterCatalogLayerType (esriGeoprocessing) | Geoprocessing Raster Catalog Layer Data Type. |
| GPRasterDataLayerType (esriGeoprocessing) | Raster Data Layer Data Type. |
| GPRasterDataType (esriGeoprocessing) | Raster Data Type. |
| GPRasterFormulatedType (esriGeoprocessing) | Geoprocessor GP RasterFormulated object Type. |
| GPRasterGDBEnvCompressionType (esriGeoprocessing) | GeoProcessor Spatial GDB Environment Compression Type object. |
| GPRasterGDBEnvPyramidType (esriGeoprocessing) | GeoProcessor Spatial GDB Environment Compression Type object. |
| GPRasterGDBEnvStatisticsType (esriGeoprocessing) | GeoProcessor Spatial GDB Environment Compression Type object. |
| GPRasterGDBEnvTileSizeType (esriGeoprocessing) | GeoProcessor Spatial GDB Environment Compression Type object. |
| GPRasterLayerType (esriGeoprocessing) | Geoprocessing Raster Layer Data Type. |
| GPRecordSetType (esriGeoprocessing) | Record Set Data Type. |
| GPRouteMeasureEventPropertiesType (esriGeoprocessing) | Geoprocessing route measure event properties data type. |
| GPSACellSizeType (esriSpatialAnalyst) | GeoProcessor Spatial CellSize Type object. |
| GPSAExtractValuesType (esriSpatialAnalyst) | GeoProcessor Spatial Analyst GPSAExtractValues Type object. |
| GPSAFuzzyFunctionType (esriSpatialAnalyst) | GeoProcessor Spatial Analyst fuzzy function type object. |
| GPSAGeoDataType (esriGeoprocessing) | Geoprocessor GPSAGeoData object Type. |
| GPSAHorizontalFactorType (esriSpatialAnalyst) | GeoProcessor Spatial Analyst HorizontalFactor type object. |
| GPSAMapAlgebraExpType (esriSpatialAnalyst) | GeoProcessor Spatial Analyst MapAlgebra Type object. |
| GPSANeighborhoodType (esriSpatialAnalyst) | GeoProcessor Spatial Neighborhood Type object. |
| GPSANumberRemapType (esriSpatialAnalyst) | GeoProcessor Spatial NumberRemap Type object. |
| GPSARadiusType (esriSpatialAnalyst) | GeoProcessor Spatial Radius Type object. |
| GPSASemiVariogramType (esriSpatialAnalyst) | GeoProcessor Spatial SemiVariogram Type object. |
| GPSAStringRemapType (esriSpatialAnalyst) | GeoProcessor Spatial StringRemap Type object. |
| GPSATimeConfigurationType (esriSpatialAnalyst) | GeoProcessor Spatial Analyst TimeConfiguration type object. |
| GPSATopoFeaturesType (esriSpatialAnalyst) | GeoProcessor Spatial Analyst TopoFeatures Type object. |
| GPSATransformationFunctionType (esriSpatialAnalyst) | GeoProcessor Spatial Analyst transformation function type object. |
| GPSAVerticalFactorType (esriSpatialAnalyst) | GeoProcessor Spatial Analyst VerticalFactor type object. |
| GPSAWeightedOverlayTableType (esriSpatialAnalyst) | GeoProcessor WeightedOverlayTable Type object. |
| GPSAWeightedSumType (esriSpatialAnalyst) | GeoProcessor Spatial Analyst WeightedSum Type object. |
| GPSpatialReferenceType (esriGeoprocessing) | Geoprocessing Spatial Reference Data Type. |
| GPSQLExpressionType (esriGeoprocessing) | Geoprocessing SQL Expression Data Type. |
| GPStringHiddenType (esriGeoprocessing) | Geoprocessing Hidden String Data Type. |
| GPStringType (esriGeoprocessing) | Geoprocessing String Data Type. |
| GPTableViewType (esriGeoprocessing) | Geoprocessing Table view data Type. |
| GPTerrainLayerType (esriGeoprocessing) | Geoprocessing Terrain Layer Data Type. |
| GPTinLayerType (esriGeoprocessing) | Geoprocessing Tin Layer Data Type. |
| GPTopologyLayerType (esriGeoprocessing) | Geoprocessing Topology Layer Data Type. |
| GPType (esriGeoprocessing) | General Geoprocessing Data Type. |
| GPValueTableType (esriGeoprocessing) | Geoprocessing Value Table Data Type. |
| GPVariantType (esriGeoprocessing) | Geoprocessing Variant Data Type. |
| GPXYDomainType (esriGeoprocessing) | Geoprocessing XY Domain Data Type. |
| GPZDomainType (esriGeoprocessing) | Geoprocessing Z Domain Data Type. |
| IndexType | Index Data Element object Type. |
| NAClassFieldMapType (esriNetworkAnalyst) | Network Analyst Class FieldMap type. |
See Also
IGPFunction Interface | IGPParameter Interface | IGPParameterInfo Interface
.NET Related Topics
Building a custom geoprocessing function tool
