| InternalDefinitionSetAllowVaryBetweenGroups Method | 
   Whether or not the parameter values can vary across group members.
Namespace: Autodesk.Revit.DBAssembly: RevitAPI (in RevitAPI.dll) Version: 25.0.0.0 (25.0.0.0)
 Syntax
Syntaxpublic 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
ICollectionElementId
   The ids of elements that were updated to align the values between groups.
 Exceptions
Exceptions| 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. | 
 Remarks
Remarks
   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
See Also