Description
Default constructor. Initializes the change count to 0 and IsNull to true.
Visual Basic
Public Sub New()
C#
public Region();
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- Autodesk.AutoCAD Namespace
- Autodesk.AutoCAD.AcInfoCenterConn Namespace
- Autodesk.AutoCAD.ApplicationServices Namespace
- Autodesk.AutoCAD.ApplicationServices.Core Namespace
- Autodesk.AutoCAD.BoundaryRepresentation Namespace
- Autodesk.AutoCAD.Colors Namespace
- Autodesk.AutoCAD.ComponentModel Namespace
- Autodesk.AutoCAD.Customization Namespace
- Autodesk.AutoCAD.DatabaseServices Namespace
- AbstractViewTable Class
- AbstractViewTableRecord Class
- ActionsToEvaluateCallback Class
- AlignedDimension Class
- AngleConstraint Enumeration
- AngularConstraint Class
- AnnotationScale Class
- AnnotationType Enumeration
- AnnotativeStates Enumeration
- ApplicationLoadReasons Enumeration
- Arc Class
- ArcDimension Class
- Assoc2dConstraintCallback Class
- Assoc2dConstraintGroup Class
- AssocAction Class
- AssocActionBody Class
- AssocActionParam Class
- AssocArray Class
- AssocArrayCommonParameters Class
- AssocArrayParameters Class
- AssocArrayPathParameters Class
- AssocArrayPolarParameters Class
- AssocArrayRectangularParameters Class
- AssocAsmBodyActionParam Class
- AssocBlendSurfaceActionBody Class
- AssocCompoundActionParam Class
- AssocConstraintType Enumeration
- AssocDependency Class
- AssocDependencyBody Class
- AssocDependencyPE Class
- AssocDimDependencyBody Class
- AssocDimDependencyBodyBase Class
- AssocDraggingState Enumeration
- AssocEdgeActionParam Class
- AssocEdgeChamferActionBody Class
- AssocEdgeFilletActionBody Class
- AssocEvaluationCallback Class
- AssocEvaluationMode Enumeration
- AssocEvaluationPriority Enumeration
- AssocExtendSurfaceActionBody Class
- AssocExtrudedSurfaceActionBody Class
- AssocFaceActionParam Class
- AssocFilletSurfaceActionBody Class
- AssocGeomDependency Class
- AssocGlobalUtility Class
- AssocLoftedSurfaceActionBody Class
- AssocManager Class
- AssocNetwork Class
- AssocNetworkSurfaceActionBody Class
- AssocObjectTransaction Class
- AssocOffsetSurfaceActionBody Class
- AssocParamBasedActionBody Class
- AssocPatchSurfaceActionBody Class
- AssocPathActionParam Class
- AssocPathBasedSurfaceActionBody Class
- AssocPersSubentityId Class
- AssocPersSubentityIdPE Class
- AssocPlaneSurfaceActionBody Class
- AssocRevolvedSurfaceActionBody Class
- AssocSimplePersSubentId Class
- AssocSingleEdgePersSubentId Class
- AssocStatus Enumeration
- AssocSurfaceActionBody Class
- AssocSweptSurfaceActionBody Class
- AssocTransformationType Enumeration
- AssocTrimSurfaceActionBody Class
- AssocValueDependency Class
- AssocValueProviderPE Class
- AssocVariable Class
- AssocVariableCallback Class
- AssocVertexActionParam Class
- AttachmentPoint Enumeration
- AttributeCollection Class
- AttributeDefinition Class
- AttributeReference Class
- AuditInfo Class
- AuditPass Enumeration
- AutoConstrainEvaluationCallback Class
- Background Class
- BeginInsertEventArgs Class
- BeginWblockBlockEventArgs Class
- BeginWblockEntireDatabaseEventArgs Class
- BeginWblockObjectsEventArgs Class
- BeginWblockSelectedObjectsEventArgs Class
- BlendOptions Class
- BlendOptionsBuilder Class
- BlockBegin Class
- BlockConnectionType Enumeration
- BlockEnd Class
- BlockInsertionPointsEventArgs Class
- BlockReference Class
- BlockScaling Enumeration
- BlockTable Class
- BlockTableRecord Class
- BlockTableRecordEnumerator Class
- Body Class
- BooleanOperationType Enumeration
- BulgeVertex Class
- BulgeVertexCollection Class
- CallerMustCloseAttribute Class
- Cell Class
- CellAlignment Enumeration
- CellClass Enumeration
- CellContentLayout Enumeration
- CellContentTypes Enumeration
- CellEdgeMasks Enumeration
- CellMargins Enumeration
- CellOption Enumeration
- CellProperties Enumeration
- CellRange Class
- CellStates Enumeration
- CellType Enumeration
- CenterPointConstraint Class
- Circle Class
- ClipBoundaryType Enumeration
- ColinearConstraint Class
- CollisionType Enumeration
- ColumnType Enumeration
- CompositeConstraint Class
- CompoundObjectId Class
- ConcentricConstraint Class
- Constrained2PointsConstructionLine Class
- ConstrainedArc Class
- ConstrainedBoundedEllipse Class
- ConstrainedBoundedLine Class
- ConstrainedCircle Class
- ConstrainedConstructionLine Class
- ConstrainedCurve Class
- ConstrainedDatumLine Class
- ConstrainedEllipse Class
- ConstrainedGeometry Class
- ConstrainedImplicitPoint Class
- ConstrainedLine Class
- ConstrainedPoint Class
- ConstrainedRigidSet Class
- ConstrainedSpline Class
- ConstraintGroupNode Class
- ConstrainType Enumeration
- ContentType Enumeration
- Curve Class
- CustomObjectSnapMode Class
- CustomScale Structure
- DataAdapterProvider Class
- Database Class
- DatabaseIOEventArgs Class
- DatabaseSummaryInfo Structure
- DatabaseSummaryInfoBuilder Class
- DataCell Class
- DataCellCollection Class
- DataColumn Class
- DataLink Class
- DataLinkGetSourceContext Enumeration
- DataLinkManager Class
- DataLinkOption Enumeration
- DataTable Class
- DataType Enumeration
- DBDictionary Class
- DBDictionaryEntry Structure
- DbDictionaryEnumerator Class
- DbHomeView Class
- DBObject Class
- DBObjectCollection Class
- DBObjectReference Structure
- DBObjectReferenceCollection Class
- DBPoint Class
- DBText Class
- DBVisualStyle Class
- DecomposeForSaveReplacementRecord Structure
- DeepCloneType Enumeration
- DefaultLightingType Enumeration
- DetailSymbol Class
- DetailSymbolBoundaryType Enumeration
- DetailSymbolOverriddenProperty Enumeration
- DetailViewIdentifierPlacement Enumeration
- DetailViewModelEdge Enumeration
- DetailViewStyle Class
- DgnDefinition Class
- DgnReference Class
- DgnUnderlayItem Class
- DiametricDimension Class
- DictionaryWithDefaultDictionary Class
- DimArrowFlag Enumeration
- Dimension Class
- DimensionCenterMarkType Enumeration
- DimensionStyleOverrule Class
- DimStyleTable Class
- DimStyleTableRecord Class
- DistanceConstraint Class
- DragStatus Enumeration
- DrawLeaderOrderType Enumeration
- DrawMLeaderOrderType Enumeration
- DrawOrderTable Class
- DuplicateRecordCloning Enumeration
- DwfDefinition Class
- DwfReference Class
- DwgFiler Class
- DwgVersion Enumeration
- DxfCode Enumeration
- DxfFiler Class
- DynamicBlockReferenceProperty Class
- DynamicBlockReferencePropertyCollection Class
- DynamicBlockReferencePropertyCollectionEnumerator Class
- DynamicBlockReferencePropertyUnitsType Enumeration
- DynamicDimensionChangedEventArgs Class
- DynamicDimensionData Class
- DynamicDimensionDataCollection Class
- EdgeRef Class
- Ellipse Class
- EndCap Enumeration
- Entity Class
- EntityAlignmentEventArgs Class
- EqualCurvatureConstraint Class
- EqualDistanceConstraint Class
- EqualHelpParameterConstraint Class
- EqualLengthConstraint Class
- EqualRadiusConstraint Class
- ExplicitConstraint Class
- Extents2d Structure
- Extents3d Structure
- ExtrudedSurface Class
- Face Class
- FaceRecord Class
- FaceRef Class
- FeatureControlFrame Class
- Field Class
- FieldCodeFlags Enumeration
- FieldCodeWithChildren Class
- FieldEvaluationContext Enumeration
- FieldEvaluationOptions Enumeration
- FieldEvaluationResult Structure
- FieldEvaluationStatus Enumeration
- FieldEvaluationStatusResult Structure
- FieldFilingOptions Enumeration
- FieldState Enumeration
- FileOpenMode Enumeration
- FilerType Enumeration
- FilletTrimMode Enumeration
- FindFileHint Enumeration
- FitData Structure
- FixedConstraint Class
- FlowDirection Enumeration
- Font Structure
- FormattedTableData Class
- FrameSetting Enumeration
- FullDwgVersion Structure
- FullSubentityPath Structure
- G2SmoothConstraint Class
- GeoCoordinateCategory Class
- GeoCoordinateSystem Class
- GeoCoordinateTransformer Class
- GeoCSProjectionCode Enumeration
- GeoCSType Enumeration
- GeoCSUnit Enumeration
- GeoLocationData Class
- GeomapImage Class
- GeomapType Enumeration
- GeometricalConstraint Class
- GeometryOverrule Class
- GeomRef Class
- GeoPositionMarker Class
- GradientBackground Class
- GradientColor Structure
- GradientPatternType Enumeration
- Graph Class
- GraphicsMetafileType Enumeration
- GraphNode Class
- GraphNodeCollection Class
- GridLineStyle Enumeration
- GridLineType Enumeration
- GridProperties Enumeration
- GridPropertyParameter Structure
- GripData Class
- GripMode Class
- GripModeCollection Class
- GripOverrule Class
- GripStatus Enumeration
- GroundPlaneBackground Class
- Group Class
- GsMarkType Enumeration
- Handle Structure
- Hatch Class
- HatchEdgeType Enumeration
- HatchLoop Class
- HatchLoopTypes Enumeration
- HatchObjectType Enumeration
- HatchPatternType Enumeration
- HatchStyle Enumeration
- Helix Class
- HelpParameter Class
- HighlightOverrule Class
- HighlightStateOverrule Class
- HorizontalConstraint Class
- HostApplicationServices Class
- HyperLink Class
- HyperLinkCollection Class
- IBLBackground Class
- IdMapping Class
- IdMappingEventArgs Class
- IdPair Structure
- Image Class
- ImageBackground Class
- ImageDisplayOptions Enumeration
- ImageQuality Enumeration
- ImplicitPointType Enumeration
- IndexCreation Enumeration
- InterferenceProtocolExtension Class
- Intersect Enumeration
- ItemLocator Structure
- ITextEditorSelectable Interface
- JoinStyle Enumeration
- LampColorPreset Enumeration
- LampColorType Enumeration
- LayerEvaluation Enumeration
- LayerStateManager Class
- LayerStateMasks Enumeration
- LayerTable Class
- LayerTableRecord Class
- LayerViewportProperties Class
- Layout Class
- LayoutCopiedEventArgs Class
- LayoutEventArgs Class
- LayoutManager Class
- LayoutRenamedEventArgs Class
- Leader Class
- LeaderDirectionType Enumeration
- LeaderType Enumeration
- Light Class
- LightingUnits Enumeration
- Line Class
- LineAngularDimension2 Class
- LineSpacingStyle Enumeration
- LinetypeTable Class
- LinetypeTableRecord Class
- LineWeight Enumeration
- LineWeightConverter Class
- LinkedData Class
- LinkedTableData Class
- LoftedSurface Class
- LoftOptions Class
- LoftOptionsBuilder Class
- LoftOptionsCheckCurvesOut Class
- LoftOptionsNormalOption Enumeration
- LoftProfile Class
- LongTransaction Class
- LongTransactionType Enumeration
- MaintenanceReleaseVersion Enumeration
- MatchProperties Class
- Material Class
- MeasurementValue Enumeration
- MergeCellStyleOption Enumeration
- MeshDataCollection Structure
- MeshFaceterData Structure
- MeshPointMaps Structure
- MidPointConstraint Class
- MInsertBlock Class
- MLeader Class
- MLeaderStyle Class
- Mline Class
- MlineJustification Enumeration
- MlineStyle Class
- MlineStyleElement Structure
- MlineStyleElementCollection Class
- MlineStyleElementCollectionEnumerator Class
- ModelDocViewLabelAlignmentType Enumeration
- ModelDocViewLabelAttachmentPoint Enumeration
- ModelerFlavor Enumeration
- MoveType Enumeration
- MText Class
- MTextFragment Class
- MTextFragmentCallbackStatus Enumeration
- MultiModesGripPE Class
- NewLayerNotification Enumeration
- NormalConstraint Class
- Notifier Class
- NurbsData Structure
- NurbSurface Class
- ObjectClosedEventArgs Class
- ObjectClosedEventHandler Type
- ObjectContext Class
- ObjectContextCollection Class
- ObjectContextCollectionEnumerator Class
- ObjectContextManager Class
- ObjectErasedEventArgs Class
- ObjectErasedEventHandler Type
- ObjectEventArgs Class
- ObjectEventHandler Type
- ObjectId Structure
- ObjectIdCollection Class
- ObjectIdGraph Class
- ObjectIdGraphNode Class
- ObjectOverrule Class
- ObjectSnapContext Class
- ObjectSnapInfo Class
- ObjectSnapModes Enumeration
- ObjectTypeAttribute Class
- Ole2Frame Class
- OpenCloseTransaction Class
- OpenMode Enumeration
- OpenModeAttribute Class
- OrdinateDimension Class
- OrthographicView Enumeration
- OsnapOverrule Class
- PaperOrientationStates Enumeration
- ParallelConstraint Class
- ParseOption Enumeration
- PasswordOptions Enumeration
- PathOption Enumeration
- PathRef Class
- PatternDefinition Structure
- PCAdsName Structure
- PdfDefinition Class
- PdfReference Class
- PerpendicularConstraint Class
- PhysicalIntensityMethod Enumeration
- PlaceHolder Class
- Planarity Enumeration
- PlaneSurface Class
- PlotPaperUnit Enumeration
- PlotRotation Enumeration
- PlotSettings Class
- PlotSettingsShadePlotType Enumeration
- PlotSettingsValidator Class
- PlotStyleDescriptor Structure
- PlotStyleNameType Enumeration
- PlotStyleTableChangedEventArgs Class
- PlotType Enumeration
- Point3AngularDimension Class
- PointCloud Class
- PointCloudClassificationColorRamp Class
- PointCloudColorMap Class
- PointCloudColorRamp Class
- PointCloudCrop Class
- PointCloudCropType Enumeration
- PointCloudDefEx Class
- PointCloudDispOptionOutOfRange Enumeration
- PointCloudEx Class
- PointCloudItem Class
- PointCloudItemType Enumeration
- PointCloudProperty Enumeration
- PointCloudPropertyState Enumeration
- PointCloudStylizationType Enumeration
- PointCoincidenceConstraint Class
- PointCurveConstraint Class
- Poly2dType Enumeration
- Poly3dType Enumeration
- PolyFaceMesh Class
- PolyFaceMeshVertex Class
- PolygonMesh Class
- PolygonMeshVertex Class
- Polyline Class
- Polyline2d Class
- Polyline3d Class
- PolylineVertex3d Class
- PolyMeshType Enumeration
- Profile3d Class
- PropertiesOverrule Class
- ProxyEntity Class
- ProxyObject Class
- ProxyResurrectionCompletedEventArgs Class
- RadialDimension Class
- RadialDimensionLarge Class
- RadiusDiameterConstraint Class
- RapidRTRenderSettings Class
- RapidRTRenderTarget Enumeration
- RasterImage Class
- RasterImageDef Class
- RasterVariables Class
- Ray Class
- Rectangle3d Structure
- RegAppTable Class
- RegAppTableRecord Class
- Region Class
- RegionAreaProperties Structure
- RenderEnvironment Class
- RenderGlobal Class
- RenderSettings Class
- ResultBuffer Class
- ResultBufferEnumerator Class
- RevolvedSurface Class
- RevolveOptions Class
- RevolveOptionsBuilder Class
- RevolveOptionsCheckRevolveCurveOut Class
- RigidSetTypeInfo Enumeration
- RotatedDimension Class
- RotationAngle Enumeration
- RowType Enumeration
- SaveType Enumeration
- Section Class
- SectionGeneration Enumeration
- SectionGeometry Enumeration
- SectionHeight Enumeration
- SectionHitTestInfo Structure
- SectionManager Class
- SectionSettings Class
- SectionState Enumeration
- SectionSubItem Enumeration
- SectionSymbol Class
- SectionType Enumeration
- SectionViewArrowDirection Enumeration
- SectionViewIdentifierPosition Enumeration
- SectionViewStyle Class
- SecurityActions Enumeration
- SecurityAlgorithm Enumeration
- SecurityParameters Class
- SegmentType Enumeration
- SelectType Enumeration
- SequenceEnd Class
- ShadePlotResLevel Enumeration
- ShadePlotType Enumeration
- Shape Class
- Solid Class
- Solid3d Class
- Solid3dMassProperties Structure
- SolidBackground Class
- SourceType Enumeration
- Spline Class
- SplineType Enumeration
- StandardScaleType Enumeration
- StdScaleType Enumeration
- SubDMesh Class
- SubentityGeometry Class
- SubentityOverrule Class
- SubentityType Enumeration
- SubentRef Class
- Sun Class
- Surface Class
- SurfaceTrimInfo Class
- SweepOptionsAlignOption Enumeration
- SweptSurface Class
- SymbolTable Class
- SymbolTableEnumerator Class
- SymbolTableRecord Class
- SymbolUtilityServices Class
- SymmetricConstraint Class
- Table Class
- TableBreakFlowDirection Enumeration
- TableBreakOptions Enumeration
- TableCellType Enumeration
- TableContent Class
- TableCopyOptions Enumeration
- TableEnumerator Class
- TableEnumeratorOption Enumeration
- TableFillOptions Enumeration
- TableHitTestInfo Structure
- TableHitTestType Enumeration
- TableStyle Class
- TableStyleFlags Enumeration
- TableStyleOverride Enumeration
- TableTemplate Class
- TangentConstraint Class
- TextAlignment Enumeration
- TextAlignmentType Enumeration
- TextAngleType Enumeration
- TextAttachmentDirection Enumeration
- TextAttachmentType Enumeration
- TextEditor Class
- TextEditorColumn Class
- TextEditorColumns Class
- TextEditorCursor Class
- TextEditorLocation Class
- TextEditorParagraph Class
- TextEditorParagraphTab Structure
- TextEditorSelection Class
- TextEditorSelectionbase Class
- TextEditorStack Structure
- TextEditorWipeout Class
- TextHorizontalMode Enumeration
- TextStyleTable Class
- TextStyleTableRecord Class
- TextVerticalMode Enumeration
- ThreePointAngleConstraint Class
- Transaction Class
- TransactionManager Class
- TransformOverrule Class
- TypedValue Structure
- UcsTable Class
- UcsTableRecord Class
- UnderlayDefinition Class
- UnderlayFile Class
- UnderlayHost Class
- UnderlayItem Class
- UnderlayItemCollection Class
- UnderlayLayer Class
- UnderlayLayerCollection Class
- UnderlayLayerState Enumeration
- UnderlayReference Class
- Unit Enumeration
- UnitsConverter Class
- UnitsValue Enumeration
- UnitType Enumeration
- UnmanagedPointCloudColorSchemeCollectionReactor Structure
- UpdateDirection Enumeration
- UpdateOption Enumeration
- Vertex Class
- Vertex2d Class
- Vertex2dType Enumeration
- Vertex3dType Enumeration
- VertexRef Class
- VerticalConstraint Class
- ViewBorder Class
- Viewport Class
- ViewportTable Class
- ViewportTableRecord Class
- ViewRepBlockReference Class
- ViewStyleType Enumeration
- ViewTable Class
- ViewTableRecord Class
- Visibility Enumeration
- VisibilityOverrule Class
- WblockNoticeEventArgs Class
- Wipeout Class
- Xline Class
- Xrecord Class
- XrecordEnumerator Class
- XrefBeginOperationEventArgs Class
- XrefComandeeredEventArgs Class
- XrefGraph Class
- XrefGraphNode Class
- XrefNotificationStatus Enumeration
- XrefObjectId Structure
- XrefOperation Enumeration
- XrefPreXrefLockFileEventArgs Class
- XrefRedirectedEventArgs Class
- XrefStatus Enumeration
- XrefSubCommandEventArgs Class
- XrefVetoableSubCommandEventArgs Class
- Autodesk.AutoCAD.DatabaseServices.Filters Namespace
- Autodesk.AutoCAD.DataExtraction Namespace
- Autodesk.AutoCAD.EditorInput Namespace
- Autodesk.AutoCAD.Geometry Namespace
- Autodesk.AutoCAD.GraphicsInterface Namespace
- Autodesk.AutoCAD.GraphicsSystem Namespace
- Autodesk.AutoCAD.LayerManager Namespace
- Autodesk.AutoCAD.PlottingServices Namespace
- Autodesk.AutoCAD.Publishing Namespace
- Autodesk.AutoCAD.Ribbon Namespace
- Autodesk.AutoCAD.Runtime Namespace
- Autodesk.AutoCAD.Windows Namespace
- Autodesk.AutoCAD.Windows.BGPublish Namespace
- Autodesk.AutoCAD.Windows.ToolPalette Namespace
- Autodesk.Windows Namespace
- Autodesk.Windows.Forms Namespace
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