Namespaces
- Autodesk.Revit.ApplicationServices Namespace
- Autodesk.Revit.Attributes Namespace
- Autodesk.Revit.Creation Namespace
- Autodesk.Revit.DB Namespace
- Autodesk.Revit.DB.Analysis Namespace
- Autodesk.Revit.DB.Architecture Namespace
- Autodesk.Revit.DB.DirectContext3D Namespace
- Autodesk.Revit.DB.Electrical Namespace
- Autodesk.Revit.DB.Events Namespace
- Autodesk.Revit.DB.ExtensibleStorage Namespace
- Autodesk.Revit.DB.ExternalService Namespace
- Autodesk.Revit.DB.Fabrication Namespace
- Autodesk.Revit.DB.IFC Namespace
- Autodesk.Revit.DB.Lighting Namespace
- Autodesk.Revit.DB.Macros Namespace
- Autodesk.Revit.DB.Mechanical Namespace
- Autodesk.Revit.DB.Plumbing Namespace
- Autodesk.Revit.DB.PointClouds Namespace
- Autodesk.Revit.DB.Steel Namespace
- Autodesk.Revit.DB.Structure Namespace
  - AnalyticalAlignmentMethod Enumeration
  - AnalyticalConsistencyChecking Class
  - AnalyticalCurveSelector Enumeration
  - AnalyticalCurveType Enumeration
  - AnalyticalDirection Enumeration
  - AnalyticalElementSelector Enumeration
  - AnalyticalFixityState Enumeration
  - AnalyticalLink Class
  - AnalyticalLinkType Class
  - AnalyticalLoopType Enumeration
  - AnalyticalModel Class
  - AnalyticalModelColumn Class
  - AnalyticalModelSelector Class
  - AnalyticalModelSketchComponent Class
  - AnalyticalModelStick Class
  - AnalyticalModelSupport Class
  - AnalyticalModelSurface Class
    - AnalyticalModelSurface Members
    - AnalyticalModelSurface Methods
    - AnalyticalModelSurface Properties
      - AlignmentMethod Property
      - BottomExtension Property
      - BottomExtensionMethod Property
      - BottomExtensionPlaneId Property
      - HasExtension Property
      - Parameter Property
      - ProjectionPlaneZ Property
      - ProjectionZ Property
      - TopExtension Property
      - TopExtensionMethod Property
      - TopExtensionPlaneId Property
  - AnalyticalProjectionType Enumeration
  - AnalyticalRigidLinksOption Enumeration
  - AnalyticalSupportChecking Class
  - AnalyticalSupportPriority Enumeration
  - AnalyticalSupportType Enumeration
  - AnalyzeAs Enumeration
  - AreaLoad Class
  - AreaLoadType Class
  - AreaReinforcement Class
  - AreaReinforcementCurve Class
  - AreaReinforcementType Class
  - BentFabricBendDirection Enumeration
  - BentFabricStraightWiresLocation Enumeration
  - BoundaryConditions Class
  - BoundaryConditionsOrientTo Enumeration
  - BoundaryConditionsType Enumeration
  - BracePlanRepresentation Enumeration
  - CodeCheckingParameterServiceData Class
  - DistributionType Enumeration
  - EndTreatmentType Class
  - ExtElemChangeBeamSectionRegistry Class
  - FabricArea Class
  - FabricAreaType Class
  - FabricHostReference Enumeration
  - FabricLapSplicePosition Enumeration
  - FabricLocation Enumeration
  - FabricReinSpanSymbol Class
  - FabricRoundingManager Class
  - FabricSheet Class
  - FabricSheetAlignment Enumeration
  - FabricSheetLayoutPattern Enumeration
  - FabricSheetType Class
  - FabricTagComponentReference Enumeration
  - FabricWireItem Class
  - FabricWireType Class
  - FamilyStructuralMaterialTypeFilter Class
  - Hub Class
  - ICodeCheckingParameterServer Interface
  - IExtElemChangeBeamSection Interface
  - IMemberForcesServer Interface
  - IRebarUpdateServer Interface
  - IStructuralSectionsServer Interface
  - LineLoad Class
  - LineLoadType Class
  - LoadBase Class
  - LoadCase Class
  - LoadCaseCategory Enumeration
  - LoadCombination Class
  - LoadCombinationState Enumeration
  - LoadCombinationType Enumeration
  - LoadComponent Class
  - LoadNature Class
  - LoadOrientTo Enumeration
  - LoadType Enumeration
  - LoadTypeBase Class
  - LoadUsage Class
  - MemberForces Class
  - MemberForcesServiceData Class
  - MultiplanarOption Enumeration
  - PathReinforcement Class
  - PathReinforcementType Class
  - PathReinSpanSymbol Class
  - PointLoad Class
  - PointLoadType Class
  - Rebar Class
  - RebarBarType Class
  - RebarBendData Class
  - RebarConstrainedHandle Class
  - RebarConstraint Class
  - RebarConstraintsManager Class
  - RebarConstraintTargetHostFaceType Enumeration
  - RebarConstraintType Enumeration
  - RebarContainer Class
  - RebarContainerItem Class
  - RebarContainerIterator Class
  - RebarContainerParameterManager Class
  - RebarContainerType Class
  - RebarCoupler Class
  - RebarCouplerError Enumeration
  - RebarCoverType Class
  - RebarCurvesData Class
  - RebarDeformationType Enumeration
  - RebarFreeFormAccessor Class
  - RebarFreeFormValidationResult Enumeration
  - RebarGeometryType Enumeration
  - RebarHandleNameData Class
  - RebarHandlePositionData Class
  - RebarHandlesData Class
  - RebarHandleType Enumeration
  - RebarHookOrientation Enumeration
  - RebarHookType Class
  - RebarHostCategory Enumeration
  - RebarHostData Class
  - RebarInSystem Class
  - RebarLayoutRule Enumeration
  - RebarPresentationMode Enumeration
  - RebarReinforcementData Class
  - RebarRoundingManager Class
  - RebarShape Class
  - RebarShapeArcReferenceType Enumeration
  - RebarShapeBendAngle Enumeration
  - RebarShapeConstraint Class
  - RebarShapeConstraint180DegreeBendArcLength Class
  - RebarShapeConstraint180DegreeBendRadius Class
  - RebarShapeConstraint180DegreeDefaultBend Class
  - RebarShapeConstraintAngleFromFixedDir Class
  - RebarShapeConstraintArcLength Class
  - RebarShapeConstraintChordLength Class
  - RebarShapeConstraintCircumference Class
  - RebarShapeConstraintDiameter Class
  - RebarShapeConstraintFixedSegmentDir Class
  - RebarShapeConstraintProjectedSegmentLength Class
  - RebarShapeConstraintRadius Class
  - RebarShapeConstraintSagittaLength Class
  - RebarShapeConstraintSegmentLength Class
  - RebarShapeDefinition Class
  - RebarShapeDefinitionByArc Class
  - RebarShapeDefinitionByArcType Enumeration
  - RebarShapeDefinitionBySegments Class
  - RebarShapeDrivenAccessor Class
  - RebarShapeMultiplanarDefinition Class
  - RebarShapeParameters Class
  - RebarShapeSegment Class
  - RebarShapeSegmentEndReferenceType Enumeration
  - RebarShapeVertex Class
  - RebarShapeVertexTurn Enumeration
  - RebarStyle Enumeration
  - RebarSystemSpanSymbol Class
  - RebarTrimExtendData Class
  - RebarUpdateCurvesData Class
  - RebarWorkInstructions Enumeration
  - ReinforcementAbbreviationObjectType Enumeration
  - ReinforcementAbbreviationTag Class
  - ReinforcementAbbreviationTagType Enumeration
  - ReinforcementBarOrientation Enumeration
  - ReinforcementData Class
  - ReinforcementRoundingManager Class
  - ReinforcementRoundingSource Enumeration
  - ReinforcementSettings Class
  - ReleaseType Enumeration
  - StickElementExtension Enumeration
  - StickElementProjectionY Enumeration
  - StickElementProjectionZ Enumeration
  - StirrupTieAttachmentType Enumeration
  - StructuralConnectionApplyTo Enumeration
  - StructuralConnectionApprovalType Class
  - StructuralConnectionCodeCheckingStatus Enumeration
  - StructuralConnectionHandler Class
  - StructuralConnectionHandlerType Class
  - StructuralConnectionSettings Class
  - StructuralConnectionType Class
  - StructuralFramingUtils Class
  - StructuralInstanceUsage Enumeration
  - StructuralInstanceUsageFilter Class
  - StructuralMaterialType Enumeration
  - StructuralMaterialTypeFilter Class
  - StructuralSectionsServiceData Class
  - StructuralSettings Class
  - StructuralType Enumeration
  - StructuralWallUsage Enumeration
  - StructuralWallUsageFilter Class
  - SurfaceElementExtension Enumeration
  - SurfaceElementProjectionZ Enumeration
  - TargetRebarConstraintType Enumeration
  - TranslationRotationValue Enumeration
  - Truss Class
  - TrussChordLocation Enumeration
  - TrussCurveType Enumeration
  - TrussMemberInfo Class
  - TrussMemberType Enumeration
  - TrussType Class
  - WireDistributionDirection Enumeration
  - YJustification Enumeration
  - YZJustificationOption Enumeration
  - ZJustification Enumeration
- Autodesk.Revit.DB.Structure.StructuralSections Namespace
- Autodesk.Revit.DB.Visual Namespace
- Autodesk.Revit.Exceptions Namespace
- Autodesk.Revit.UI Namespace
- Autodesk.Revit.UI.Events Namespace
- Autodesk.Revit.UI.Macros Namespace
- Autodesk.Revit.UI.Mechanical Namespace
- Autodesk.Revit.UI.Plumbing Namespace
- Autodesk.Revit.UI.Selection Namespace
What's New

HasExtension Property

Indicates if the element supports an extension option.

Namespace: Autodesk.Revit.DB.Structure
Assembly: RevitAPI (in RevitAPI.dll) Version: 19.0.0.0 (19.2.0.66)
Since: 2015

Syntax

C#
public bool HasExtension { get; }

Visual Basic
Public ReadOnly Property HasExtension As Boolean Get

Visual C++
public: property bool HasExtension { bool get (); }

Remarks

Analytical model elements for walls support extension options, while those for floor or slabs do not.

Syntax

Remarks

See Also