ParameterFilterElementSetCategories Method

Sets the categories admitted by this filter.

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

Syntax

public void SetCategories(
	ICollection<ElementId> categories
)

Public Sub SetCategories ( 
	categories As ICollection(Of ElementId)
)

public:
void SetCategories(
	ICollection<ElementId^>^ categories
)

member SetCategories : 
        categories : ICollection<ElementId> -> unit

Exceptions

Exception	Condition
ArgumentNullException	A non-optional argument was null

Remarks

Testing that an element's category is a member of this set is, essentially, the first rule of the filter.

Changing the set of categories will clear any rules that use parameters that are not applicable for the new set of categories.