Opening Class |
An opening in an Autodesk Revit project or family document.

Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 25.0.0.0 (25.0.0.0)

The Opening type exposes the following members.

Name | Description | |
---|---|---|
![]() | AssemblyInstanceId | The id of the assembly instance to which the element belongs. (Inherited from Element ) |
![]() | BoundaryCurves | The geometry information for non-rectangular openings in project documents, or for all openings in family documents. |
![]() | BoundaryRect | Retrieves the geometry information if the opening boundary is a rect. |
![]() ![]() | BoundingBox | Retrieves a box that circumscribes all geometry of the element. (Inherited from Element ) |
![]() | Category | Retrieves a Category object that represents the category or sub category in which the element resides. (Inherited from Element ) |
![]() ![]() | CreatedPhaseId | Id of a Phase at which the Element was created. (Inherited from Element ) |
![]() ![]() | DemolishedPhaseId | Id of a Phase at which the Element was demolished. (Inherited from Element ) |
![]() ![]() | DesignOption | Returns the design option to which the element belongs. (Inherited from Element ) |
![]() | Document | Returns the Document in which the Element resides. (Inherited from Element ) |
![]() ![]() | Geometry | Retrieves the geometric representation of the element. (Inherited from Element ) |
![]() | GroupId | The id of the group to which an element belongs. (Inherited from Element ) |
![]() | Host | Retrieves the host element of this opening. |
![]() ![]() | Id | A unique identifier for an Element in an Autodesk Revit project. (Inherited from Element ) |
![]() | IsModifiable | Identifies if the element is modifiable. (Inherited from Element ) |
![]() | IsRectBoundary | Retrieves the information whether the opening has a rectangular boundary. |
![]() | IsTransient | Indicates whether an element is transient or permanent. (Inherited from Element ) |
![]() | IsTransparentIn3D | Indicates if the opening is transparent in 3D view when loaded into the project. |
![]() | IsTransparentInElevation | Indicates if the opening is transparent in elevation view when loaded into the project. |
![]() | IsValidObject | Specifies whether the .NET object represents a valid Revit entity. (Inherited from Element ) |
![]() | LevelId | The id of the level associated with the element. (Inherited from Element ) |
![]() ![]() | Location | This property is used to find the physical location of an element within a project. (Inherited from Element ) |
![]() | Name | A human readable name for the Element. (Inherited from Element ) |
![]() | OwnerViewId | The id of the view that owns the element. (Inherited from Element ) |
![]() ![]() | Parameter BuiltInParameter | Retrieves a parameter from the element given a parameter id. (Inherited from Element ) |
![]() | Parameter Definition | Retrieves a parameter from the element based on its definition. (Inherited from Element ) |
![]() | Parameter Guid | Retrieves a parameter from the element given a GUID for a shared parameter. (Inherited from Element ) |
![]() ![]() | Parameters | Retrieves a set containing all of the parameters that are contained within the element. (Inherited from Element ) |
![]() | ParametersMap | Retrieves a map containing all of the parameters that are contained within the element. (Inherited from Element ) |
![]() | Pinned | Identifies if the element has been pinned to prevent changes. (Inherited from Element ) |
![]() | SketchId | Returns id of the Sketch or invalidElementId if element deon't own the Sketch. |
![]() ![]() | UniqueId | A stable unique identifier for an element within the document. (Inherited from Element ) |
![]() | VersionGuid | Get the element version Guid. (Inherited from Element ) |
![]() | ViewSpecific | Identifies if the element is owned by a view. (Inherited from Element ) |
![]() | WorksetId | Get Id of the Workset which owns the element. (Inherited from Element ) |

Name | Description | |
---|---|---|
![]() | ArePhasesModifiable | Returns true if the properties CreatedPhaseId and DemolishedPhaseId can be modified for this Element. (Inherited from Element ) |
![]() | CanBeHidden | Indicates if the element can be hidden in the view. (Inherited from Element ) |
![]() | CanBeLocked | Identifies if the element can be locked. (Inherited from Element ) |
![]() | CanDeleteSubelement | Checks if given subelement can be removed from the element. (Inherited from Element ) |
![]() | CanHaveTypeAssigned | Identifies if the element can have a type assigned. (Inherited from Element ) |
![]() | ChangeTypeId(ElementId) | Changes the type of the element. (Inherited from Element ) |
![]() | DeleteEntity | Deletes the existing entity created by %schema% in the element (Inherited from Element ) |
![]() | DeleteSubelement | Removes a subelement from the element. (Inherited from Element ) |
![]() | DeleteSubelements | Removes the subelements from the element. (Inherited from Element ) |
![]() | Dispose | (Inherited from Element ) |
![]() | Equals | Determines whether the specified object is equal to the current object. (Inherited from Object ) |
![]() | EvaluateAllParameterValues | Evaluates all the parameters' values of the element. (Inherited from Element ) |
![]() | EvaluateParameterValues | Evaluate the parameters' values of the element on the given parameter ID set. (Inherited from Element ) |
![]() | GetDependentElements | Get all elements that, from a logical point of view, are the children of this Element. (Inherited from Element ) |
![]() | GetEntity | Returns the existing entity corresponding to the Schema if it has been saved in the Element, or an invalid entity otherwise. (Inherited from Element ) |
![]() | GetEntitySchemaGuids | Returns the Schema guids of any Entities stored in this element. (Inherited from Element ) |
![]() | GetExternalFileReference | Gets information pertaining to the external file referenced by the element. (Inherited from Element ) |
![]() | GetExternalResourceReference | Gets the ExternalResourceReference associated with a specified external resource type. (Inherited from Element ) |
![]() | GetExternalResourceReferenceExpanded | Gets the collection of ExternalResourceReference associated with a specified external resource type. (Inherited from Element ) |
![]() | GetExternalResourceReferences | Gets the map of the external resource references referenced by the element. (Inherited from Element ) |
![]() | GetExternalResourceReferencesExpanded | Gets the expanded map of the external resource references referenced by the element. (Inherited from Element ) |
![]() ![]() | GetGeneratingElementIds | Returns the ids of the element(s) that generated the input geometry object. (Inherited from Element ) |
![]() | GetGeometryObjectFromReference | Retrieve one geometric primitive contained in the element given a reference. (Inherited from Element ) |
![]() | GetHashCode | Serves as the default hash function. (Inherited from Object ) |
![]() | GetMaterialArea | Gets the area of the material with the given id. (Inherited from Element ) |
![]() | GetMaterialIds | Gets the element ids of all materials present in the element. (Inherited from Element ) |
![]() | GetMaterialVolume | Gets the volume of the material with the given id. (Inherited from Element ) |
![]() | GetMonitoredLinkElementIds | Provides the link instance IDs when the element is monitoring. (Inherited from Element ) |
![]() | GetMonitoredLocalElementIds | Provides the local element IDs when the element is monitoring. (Inherited from Element ) |
![]() | GetOrderedParameters | Gets the parameters associated to the element in order. (Inherited from Element ) |
![]() | GetParameter | Retrieves a parameter from the element given identifier. (Inherited from Element ) |
![]() | GetParameterFormatOptions | Returns a FormatOptions override for the element Parameter, or a default FormatOptions if no override exists. (Inherited from Element ) |
![]() | GetParameters | Retrieves the parameters from the element via the given name. (Inherited from Element ) |
![]() | GetPhaseStatus | Gets the status of a given element in the input phase (Inherited from Element ) |
![]() | GetSubelements | Returns the collection of element subelements. (Inherited from Element ) |
![]() | GetType | Gets the Type of the current instance. (Inherited from Object ) |
![]() ![]() | GetTypeId | Returns the identifier of this element's type. (Inherited from Element ) |
![]() | GetValidTypes | Obtains a set of types that are valid for this element. (Inherited from Element ) |
![]() | HasPhases | Returns true if this Element has the properties CreatedPhaseId and DemolishedPhaseId. (Inherited from Element ) |
![]() | IsCreatedPhaseOrderValid | Returns true if createdPhaseId and demolishedPhaseId are in order. (Inherited from Element ) |
![]() | IsDemolishedPhaseOrderValid | Returns true if createdPhaseId and demolishedPhaseId are in order. (Inherited from Element ) |
![]() | IsExternalFileReference | Determines whether this Element represents an external file. (Inherited from Element ) |
![]() | IsHidden | Identifies if the element has been permanently hidden in the view. (Inherited from Element ) |
![]() | IsMonitoringLinkElement | Indicate whether an element is monitoring any elements in any linked models. (Inherited from Element ) |
![]() | IsMonitoringLocalElement | Indicate whether an element is monitoring other local elements. (Inherited from Element ) |
![]() | IsPhaseCreatedValid | Returns true if createdPhaseId is an allowed value for the property CreatedPhaseId in this Element. (Inherited from Element ) |
![]() | IsPhaseDemolishedValid | Returns true if demolishedPhaseId is an allowed value for the property DemolishedPhaseId in this Element. (Inherited from Element ) |
![]() | IsValidType(ElementId) | Checks if given type is valid for this element. (Inherited from Element ) |
![]() | LookupParameter | Attempts to find a parameter on the element which has the given name. (Inherited from Element ) |
![]() | RefersToExternalResourceReference | Determines whether this Element uses external resources associated with a specified external resource type. (Inherited from Element ) |
![]() | RefersToExternalResourceReferences | Determines whether this Element uses external resources. (Inherited from Element ) |
![]() | SetEntity | Stores the entity in the element. If an Entity described by the same Schema already exists, it is overwritten. (Inherited from Element ) |
![]() | ToString | Returns a string that represents the current object. (Inherited from Object ) |

The object represents a variety of different types of openings:
- A rectangular opening in a wall created by two boundary points in a revit project.
- An opening created by a set of curves applied to a roof, floor, ceiling, beam, brace or column.
- A vertical shaft opening extending one or more levels.
- A simple opening created on a wall or ceiling in a family document.

private void Getinfo_Opening(Opening opening)
{
string message = "Opening:";
//get the host element of this opening
message += "\nThe id of the opening's host element is : " + opening.Host.Id.ToString();
//get the information whether the opening has a rect boundary
//If the opening has a rect boundary, we can get the geometry information from BoundaryRect property.
//Otherwise we should get the geometry information from BoundaryCurves property
if (opening.IsRectBoundary)
{
message += "\nThe opening has a rectangular boundary.";
//array contains two XYZ objects: the max and min coords of boundary
IList<XYZ> boundaryRect = opening.BoundaryRect;
//get the coordinate value of the min coordinate point
XYZ point = opening.BoundaryRect[0];
message += "\nMin coordinate point:(" + point.X + ", "
+ point.Y + ", " + point.Z + ")";
//get the coordinate value of the Max coordinate point
point = opening.BoundaryRect[1];
message += "\nMax coordinate point: (" + point.X + ", "
+ point.Y + ", " + point.Z + ")";
}
else
{
message += "\nThe opening doesn't have a rectangular boundary.";
// Get curve number
int curves = opening.BoundaryCurves.Size;
message += "\nNumber of curves is : " + curves;
for (int i = 0; i < curves; i++)
{
Autodesk.Revit.DB.Curve curve = opening.BoundaryCurves.get_Item(i);
// Get curve start point
message += "\nCurve start point: " + XYZToString(curve.GetEndPoint(0));
// Get curve end point
message += "; Curve end point: " + XYZToString(curve.GetEndPoint(1));
}
}
TaskDialog.Show("Revit",message);
}
// output the point's three coordinates
string XYZToString(XYZ point)
{
return "(" + point.X + ", " + point.Y + ", " + point.Z + ")";
}
