ElementMulticlassFilter

Public Class

A filter used to match elements by their class, where more than one class of element may be passed.

Inheritance Hierarchy

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

Namespace: Autodesk.Revit.DB

Assembly: RevitAPI (in RevitAPI.dll) Version: 25.0.0.0 (25.0.0.0)

Syntax

public class ElementMulticlassFilter : ElementQuickFilter

The ElementMulticlassFilter type exposes the following members.

Constructors

Name

Description

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Public Method
ElementMulticlassFilter(IList.Type.)

Constructs a new instance of a filter to find elements whose Element subclasses matches any of a given set of input classes.

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Public Method
ElementMulticlassFilter(IList.Type., Boolean)

Constructs a new instance of a filter to find elements whose Element subclasses matches any of a given set of input classes, with an option to instead match elements whose Element subclass does not match the list of input classes.

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Properties

Name

Description

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Public Property

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)

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Public Property
IsValidObject

Specifies whether the .NET object represents a valid Revit entity.
(Inherited from ElementFilter)

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Methods

Name

Description

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Public Method

Dispose

(Inherited from ElementFilter)

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Public Method

Equals

Determines whether the specified object is equal to the current object.
(Inherited from Object)

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Public Method

GetHashCode

Serves as the default hash function.
(Inherited from Object)

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Public Method

GetType

Gets the Type of the current instance.
(Inherited from Object)

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Public Method

PassesFilter(Element)

Applies the filter to a given element.
(Inherited from ElementFilter)

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Public Method

PassesFilter(Document, ElementId)

Applies the filter to a given element.
(Inherited from ElementFilter)

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Public Method

ToString

Returns a string that represents the current object.
(Inherited from Object)

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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.

Only elements whose class is an exact match to one of the input classes, or elements whose type is derived from the input class will pass the collector.

There is a small subset of Element subclasses in the API that are not supported by this filter. These classes exist in the API, but not in Revit’s native object model, which means that this filter doesn’t support them. In order to use a class filter to find elements of these types, it is necessary to use a higher level class and then process the results further to find elements matching only the subclass. For a list of subclasses affected by this restriction, consult the documentation for [!:Autodesk::Revit::DB::ElementClassFilter].