public static ICollection<ElementId> GetFilterableParametersInCommon( Document aDoc, ICollection<ElementId> categories )
| Exception | Condition |
|---|---|
| ArgumentNullException | A non-optional argument was null |
A filterable category in Revit has a set of filterable parameters. The filterable parameters common to a set of categories is the intersection of all these filterable parameter sets.
This set defines the set of parameters that may be used to define a rule on a ParameterFilterElement with a certain set of categories.