Sets the categories admitted by this filter.

Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 2015.0.0.0 (2015.0.0.0)
Since: 2011

Syntax

C#
`public void SetCategories( ICollection<ElementId> categories )`

Visual Basic
`Public Sub SetCategories ( _ categories As ICollection(Of ElementId) _ )`

Visual C++
`public: void SetCategories( ICollection<ElementId^>^ categories )`

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 the element's filter rules.

Exception	Condition
Autodesk.Revit.Exceptions ArgumentNullException	A non-optional argument was NULL