GroupType

Description:
An element representing a group of elements that may be placed many times in a project or family.

Remarks:
Grouping elements is useful when you need to create entities that represent repeating layouts or are common to many building projects, such as hotel rooms, apartments, or repeating floors.

Inheritance Hierarchy:
System.Object
  Autodesk.Revit.DB.Element
    Autodesk.Revit.DB.ElementType
      Autodesk.Revit.DB.GroupType

public class GroupType : ElementType

Public Class GroupType _
	Inherits ElementType

public ref class GroupType : public ElementType

public void GetInfo_GroupType(GroupType groupType)
{
    string message = "GroupType";
    //Retrieve a set of all the groups that have this type.
    foreach (Group group in groupType.Groups)
    {
        // Get GroupType group name
        message = "\nThe group type name is : " + groupType.Name;
        //Returns all the members of the group.
        message += "\nThe types and ids of the group members are : ";
        IList<ElementId> groupMembers = group.GetMemberIds();
        foreach (ElementId memberId in groupMembers)
        {
            Element element = group.Document.GetElement(memberId);
            // Get GroupType group element id
            message += "\n\t" + element.GetType().Name + " : " + memberId.ToString();
        }
    }
    TaskDialog.Show("Revit",message);
}

Public Sub GetInfo_GroupType(groupType As GroupType)
    Dim message As String = "GroupType"
    'Retrieve a set of all the groups that have this type.
    For Each group As Group In groupType.Groups
        ' Get GroupType group name
        message = vbLf & "The group type name is : " & Convert.ToString(groupType.Name)
        'Returns all the members of the group.
        message += vbLf & "The types and ids of the group members are : "
        Dim groupMembers As IList(Of ElementId) = group.GetMemberIds()
        For Each memberId As ElementId In groupMembers
            Dim element As Element = group.Document.GetElement(memberId)
            ' Get GroupType group element id
            message += (vbLf & vbTab + element.[GetType]().Name & " : ") + memberId.Value
        Next
    Next
    TaskDialog.Show("Revit", message)
End Sub

Name	Return Type	Description	Inherited From
M GetAvailableAttachedDetailGroupTypeIds()	ISet<ElementId>	Returns the attached detail groups available for this element group type.
M LoadFrom(String, GroupLoadOptions)	None	Replaces the group with the contents of the input file.
M ArePhasesModifiable()	bool	Returns true if the properties CreatedPhaseId and DemolishedPhaseId can be modified for this Element.	Element
M CanBeHidden(View)	bool	Indicates if the element can be hidden in the view.	Element
M CanBeLocked()	bool	Identifies if the element can be locked.	Element
M CanDeleteSubelement(Subelement)	bool	Checks if given subelement can be removed from the element.	Element
M CanHaveTypeAssigned()	bool	Identifies if the element can have a type assigned.	Element
M CanHaveTypeAssigned(Document, ICollection<ElementId>)	bool	Checks if all elements in the set can have a type assigned.	Element
M ChangeTypeId(Document, ICollection<ElementId>, ElementId)	IDictionary	Changes the type of all elements in the given set.	Element
M ChangeTypeId(ElementId)	ElementId	Changes the type of the element.	Element
M DeleteEntity(Schema)	bool	Deletes the existing entity created by %schema% in the element	Element
M DeleteSubelement(Subelement)	bool	Removes a subelement from the element.	Element
M DeleteSubelements(IList<Subelement>)	bool	Removes the subelements from the element.	Element
M Dispose()	None	Releases all resources used by the	Element
M EvaluateAllParameterValues()	EvaluatedParameter	Evaluates all the parameters' values of the element.	Element
M EvaluateParameterValues(ISet<ElementId>)	EvaluatedParameter	Evaluate the parameters' values of the element on the given parameter ID set.	Element
M GetChangeTypeAny()	ChangeType	Returns ChangeType associated with any change in an element.	Element
M GetChangeTypeElementAddition()	ChangeType	Returns ChangeType associated with element addition	Element
M GetChangeTypeElementDeletion()	ChangeType	Returns ChangeType associated with element deletion.	Element
M GetChangeTypeGeometry()	ChangeType	Returns ChangeType associated with a change in the geometry of an element	Element
M GetChangeTypeParameter(ElementId)	ChangeType	Returns ChangeType associated with a change in a parameter's value	Element
M GetChangeTypeParameter(Parameter)	ChangeType	Returns ChangeType associated with a change in a parameter's value	Element
M GetDependentElements(ElementFilter)	IList<ElementId>	Get all elements that, from a logical point of view, are the children of this Element.	Element
M GetEntity(Schema)	The returned Entity.	Returns the existing entity corresponding to the Schema if it has been saved in the Element, or an invalid entity otherwise.	Element
M GetEntitySchemaGuids()	IList<Guid>	Returns the Schema guids of any Entities stored in this element.	Element
M GetExternalFileReference()	ExternalFileReference	Gets information pertaining to the external file referenced by the element.	Element
M GetExternalResourceReferenceExpanded(ExternalResourceType)	IList<ExternalResourceReference>	Gets the collection of ExternalResourceReference associated with a specified external resource type.	Element
M GetExternalResourceReference(ExternalResourceType)	ExternalResourceReference	Gets the ExternalResourceReference associated with a specified external resource type.	Element
M GetExternalResourceReferencesExpanded()	IDictionary	Gets the expanded map of the external resource references referenced by the element.	Element
M GetExternalResourceReferences()	IDictionary	Gets the map of the external resource references referenced by the element.	Element
M GetGeneratingElementIds(GeometryObject)	ICollection<ElementId>	Returns the ids of the element(s) that generated the input geometry object.	Element
M GetGeometryObjectFromReference(Reference)	GeometryObject	Retrieve one geometric primitive contained in the element given a reference.	Element
M GetMaterialArea(ElementId, Boolean)	double	Gets the area of the material with the given id.	Element
M GetMaterialIds(Boolean)	ICollection<ElementId>	Gets the element ids of all materials present in the element.	Element
M GetMaterialVolume(ElementId)	double	Gets the volume of the material with the given id.	Element
M GetMonitoredLinkElementIds()	IList<ElementId>	Provides the link instance IDs when the element is monitoring.	Element
M GetMonitoredLocalElementIds()	IList<ElementId>	Provides the local element IDs when the element is monitoring.	Element
M GetOrderedParameters()	IList<Parameter>	Gets the parameters associated to the element in order.	Element
M GetParameterFormatOptions(ElementId)	FormatOptions	Returns a FormatOptions override for the element Parameter, or a default FormatOptions if no override exists.	Element
M GetParameter(ForgeTypeId)	Parameter	Retrieves a parameter from the element given identifier.	Element
M GetParameters(String)	IList<Parameter>	Retrieves the parameters from the element via the given name.	Element
M GetPhaseStatus(ElementId)	ElementOnPhaseStatus	Gets the status of a given element in the input phase	Element
M GetSubelements()	IList<Subelement>	Returns the collection of element subelements.	Element
M GetTypeId()	ElementId	Returns the identifier of this element's type.	Element
M GetValidTypes()	ICollection<ElementId>	Obtains a set of types that are valid for this element.	Element
M GetValidTypes(Document, ICollection<ElementId>)	ICollection<ElementId>	Obtains a set of types that are valid for all given elements.	Element
M HasPhases()	bool	Returns true if this Element has the properties CreatedPhaseId and DemolishedPhaseId.	Element
M IsCreatedPhaseOrderValid(ElementId)	bool	Returns true if createdPhaseId and demolishedPhaseId are in order.	Element
M IsDemolishedPhaseOrderValid(ElementId)	bool	Returns true if createdPhaseId and demolishedPhaseId are in order.	Element
M IsExternalFileReference()	bool	Determines whether this Element represents an external file.	Element
M IsHidden(View)	bool	Identifies if the element has been permanently hidden in the view.	Element
M IsMonitoringLinkElement()	bool	Indicate whether an element is monitoring any elements in any linked models.	Element
M IsMonitoringLocalElement()	bool	Indicate whether an element is monitoring other local elements.	Element
M IsPhaseCreatedValid(ElementId)	bool	Returns true if createdPhaseId is an allowed value for the property CreatedPhaseId in this Element.	Element
M IsPhaseDemolishedValid(ElementId)	bool	Returns true if demolishedPhaseId is an allowed value for the property DemolishedPhaseId in this Element.	Element
M IsValidType(Document, ICollection<ElementId>, ElementId)	bool	Checks if given type is valid for the set of elements.	Element
M IsValidType(ElementId)	bool	Checks if given type is valid for this element.	Element
M LookupParameter(String)	nullNothingnullptr	Attempts to find a parameter on the element which has the given name.	Element
M RefersToExternalResourceReference(ExternalResourceType)	bool	Determines whether this Element uses external resources associated with a specified external resource type.	Element
M RefersToExternalResourceReferences()	bool	Determines whether this Element uses external resources.	Element
M SetEntity(Entity)	None	Stores the entity in the element. If an Entity described by the same Schema already exists, it is overwritten.	Element
M Duplicate(String)	ElementType	Duplicates an existing element type and assigns it a new name.	ElementType
M GetPreviewImage(Size)	nullNothingnullptr	Get the preview image of an element. This image is similar to what is seen in the Revit UI when selecting the type of an element.	ElementType
M GetSimilarTypes()	ICollection<ElementId>	Obtains a set of types that are similar to this type.	ElementType
M IsSimilarType(ElementId)	bool	Checks if given type is similar to this type.	ElementType
M IsValidDefaultFamilyType(ElementId)	bool	Identifies if this type is a valid default family type for the given family category id.	ElementType

Name	Return Type	Description	Inherited From
P Groups	GroupSet	Retrieve a set of all the groups that have this type.
P AssemblyInstanceId	ElementId	The id of the assembly instance to which the element belongs.	Element
P BoundingBox	BoundingBoxXYZ	Retrieves a box that circumscribes all geometry of the element.	Element
P Category	Category	Retrieves a Category object that represents the category or sub category in which the element resides.	Element
P CreatedPhaseId	ElementId	Id of a Phase at which the Element was created.	Element
P DemolishedPhaseId	ElementId	Id of a Phase at which the Element was demolished.	Element
P DesignOption	DesignOption	Returns the design option to which the element belongs.	Element
P Document	Document	Returns the Document in which the Element resides.	Element
P Geometry	GeometryElement	Retrieves the geometric representation of the element.	Element
P GroupId	ElementId	The id of the group to which an element belongs.	Element
P Id	ElementId	A unique identifier for an Element in an Autodesk Revit project.	Element
P IsModifiable	bool	Identifies if the element is modifiable.	Element
P IsTransient	bool	Indicates whether an element is transient or permanent.	Element
P IsValidObject	bool	Specifies whether the .NET object represents a valid Revit entity.	Element
P LevelId	ElementId	The id of the level associated with the element.	Element
P Location	Location	This property is used to find the physical location of an element within a project.	Element
P Name	string	A human readable name for the Element.	Element
P OwnerViewId	ElementId	The id of the view that owns the element.	Element
P Parameter	Parameter	Retrieves a parameter from the element given a parameter id.	Element
P Parameter	Parameter	Retrieves a parameter from the element based on its definition.	Element
P Parameter	Parameter	Retrieves a parameter from the element given a GUID for a shared parameter.	Element
P ParametersMap	ParameterMap	Retrieves a map containing all of the parameters that are contained within the element.	Element
P Parameters	ParameterSet	Retrieves a set containing all of the parameters that are contained within the element.	Element
P Pinned	bool	Identifies if the element has been pinned to prevent changes.	Element
P UniqueId	string	A stable unique identifier for an element within the document.	Element
P VersionGuid	Guid	Get the element version Guid.	Element
P ViewSpecific	bool	Identifies if the element is owned by a view.	Element
P WorksetId	WorksetId	Get Id of the Workset which owns the element.	Element
P CanBeCopied	bool	Determine if this ElementType can create a copy	ElementType
P CanBeDeleted	bool	Determine if this ElementType can be deleted	ElementType
P CanBeRenamed	bool	Determine if this ElementType can be renamed	ElementType
P FamilyName	string	Gets the family name of this element type.	ElementType
P Name	string	Set the name for the ElementType.	ElementType