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
  - ExporterIFC Class
  - ExporterIFCUtils Class
  - HostObjectSubcomponentInfo Class
  - IExporterIFC Interface
  - IFCAggregate Class
  - IFCAggregateIterator Class
  - IFCAnyHandle Class
    - IFCAnyHandle Members
    - IFCAnyHandle Methods
    - IFCAnyHandle Operators
    - IFCAnyHandle Properties
      - HasValue Property
      - Id Property
      - IsValidObject Property
      - StepId Property
      - TypeName Property
  - IFCConnectedWallData Class
  - IFCConnectedWallDataLocation Enumeration
  - IFCData Class
  - IFCDataPrimitiveType Enumeration
  - IFCExtrusionAxes Enumeration
  - IFCExtrusionBasis Enumeration
  - IFCExtrusionCalculatorOptions Class
  - IFCExtrusionCalculatorUtils Class
  - IFCExtrusionCreationData Class
  - IFCExtrusionData Class
  - IFCFamilyInstanceExtrusionExportResults Class
  - IFCFile Class
  - IFCFileFormat Enumeration
  - IFCFileModelOptions Class
  - IFCFileReadOptions Class
  - IFCFileWriteOptions Class
  - IFCGeometryInfo Class
  - IFCImportAction Enumeration
  - IFCImportIntent Enumeration
  - IFCImportOptions Class
  - IFCLegacyStairOrRamp Class
  - IFCLevelInfo Class
  - IFCLogical Enumeration
  - IFCOpeningData Class
  - IFCProductWrapper Class
  - IFCProjectLevelGUIDType Enumeration
  - IFCRange Class
  - IFCTransaction Class
  - IFCTransformSetter Class
  - IIFCImporterServer Interface
  - ImporterIFC Class
  - ImporterIFCUtils Class
  - RoofComponents Class
- 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
- 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

HasValue Property

Identifies if the handle is empty or contains a value.

Namespace: Autodesk.Revit.DB.IFC
Assembly: RevitAPIIFC (in RevitAPIIFC.dll) Version: 19.0.0.0 (19.2.0.66)
Since: 2012

Syntax

C#
public bool HasValue { get; }

Visual Basic
Public ReadOnly Property HasValue As Boolean Get

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

Syntax

See Also