Revit 2025 API
Internal |
Whether or not the parameter values can vary across group members.
Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 25.0.0.0 (25.0.0.0)
Syntax
public ICollection<ElementId> SetAllowVaryBetweenGroups( Document document, bool allowVaryBetweenGroups )
Public Function SetAllowVaryBetweenGroups ( document As Document, allowVaryBetweenGroups As Boolean ) As ICollection(Of ElementId)
public: ICollection<ElementId^>^ SetAllowVaryBetweenGroups( Document^ document, bool allowVaryBetweenGroups )
member SetAllowVaryBetweenGroups : document : Document * allowVaryBetweenGroups : bool -> ICollection<ElementId>
Parameters
- document Document
- The document of this parameter.
- allowVaryBetweenGroups Boolean
- Whether this parameter should be allowed to vary between groups.
Return Value
ICollectionElementIdThe ids of elements that were updated to align the values between groups.

Exception | Condition |
---|---|
ArgumentException | This parameter does not support the specified value of allowVaryBetweenGroups. -or- document is not a project document. |
ArgumentNullException | A non-optional argument was null |
ModificationForbiddenException | The document is in failure mode: an operation has failed, and Revit requires the user to either cancel the operation or fix the problem (usually by deleting certain elements). -or- The document is being loaded, or is in the midst of another sensitive process. |
ModificationOutsideTransactionException | The document has no open transaction. |

When a parameter is set to not vary between groups Revit will automatically align the parameter values
of any elements that actually varied between group instances.
See Also