ElementMulticategoryFilter Class

A filter used to find elements whose category matches any of a given set of categories.

Inheritance Hierarchy

System.Object
  Autodesk.Revit.DB.ElementFilter
    Autodesk.Revit.DB.ElementQuickFilter
      Autodesk.Revit.DB.ElementMulticategoryFilter

Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 26.1.0.0 (26.1.0.34)

Syntax

C#

public class ElementMulticategoryFilter : ElementQuickFilter

The ElementMulticategoryFilter type exposes the following members.

Constructors

	Name	Description
	ElementMulticategoryFilter(ICollection<BuiltInCategory>)	Constructs a new instance of a filter to match elements by built-in category.
	ElementMulticategoryFilter(ICollection<ElementId>)	Constructs a new instance of a filter to find elements whose category matches any of a given set of categories.
	ElementMulticategoryFilter(ICollection<BuiltInCategory>, Boolean)	Constructs a new instance of a filter to match elements by built-in category, with the option to match all elements which are not of the given category.
	ElementMulticategoryFilter(ICollection<ElementId>, Boolean)	Constructs a new instance of a filter to find elements whose category matches any of a given set of categories, with the option to instead match elements which are not of the given categories.

Properties

	Name	Description
	Inverted	True if the results of the filter are inverted; elements that would normally be accepted by this filter will be rejected, and elements that would normally be rejected will be accepted. (Inherited from ElementFilter)
	IsValidObject	Specifies whether the .NET object represents a valid Revit entity. (Inherited from ElementFilter)

Methods

	Name	Description
	Dispose	(Inherited from ElementFilter)
	Equals	Determines whether the specified object is equal to the current object. (Inherited from Object)
	GetCategoryIds	Gets the category ids assigned to this filter.
	GetHashCode	Serves as the default hash function. (Inherited from Object)
	GetType	Gets the Type of the current instance. (Inherited from Object)
	PassesFilter(Element)	Applies the filter to a given element. (Inherited from ElementFilter)
	PassesFilter(Document, ElementId)	Applies the filter to a given element. (Inherited from ElementFilter)
	ToString	Returns a string that represents the current object. (Inherited from Object)

Remarks

This filter is a quick filter. Quick filters operate only on the ElementRecord, a low-memory class which has a limited interface to read element properties. Elements which are rejected by a quick filter will not be expanded in memory.