ExclusionFilter Class

ExclusionFilter Class

A filter used to exclude a set of elements automatically.
Inheritance Hierarchy
SystemObject
  Autodesk.Revit.DBElementFilter
    Autodesk.Revit.DBElementQuickFilter
      Autodesk.Revit.DBExclusionFilter

Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 25.0.0.0 (25.0.0.0)
Syntax
public class ExclusionFilter : ElementQuickFilter
Public Class ExclusionFilter
	Inherits ElementQuickFilter
public ref class ExclusionFilter : public ElementQuickFilter
type ExclusionFilter = 
    class
        inherit ElementQuickFilter
    end

The ExclusionFilter type exposes the following members.

Constructors
 NameDescription
Public methodExclusionFilter Constructs a new instance of a filter to exclude elements automatically.
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Properties
 NameDescription
Public propertyInverted 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)
Public propertyIsValidObject Specifies whether the .NET object represents a valid Revit entity.
(Inherited from ElementFilter)
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Methods
 NameDescription
Public methodDispose
(Inherited from ElementFilter)
Public methodEqualsDetermines whether the specified object is equal to the current object.
(Inherited from Object)
Public methodGetHashCodeServes as the default hash function.
(Inherited from Object)
Public methodGetIdsToExclude Returns the ids to be excluded by this filter.
Public methodGetTypeGets the Type of the current instance.
(Inherited from Object)
Public methodPassesFilter(Element) Applies the filter to a given element.
(Inherited from ElementFilter)
Public methodPassesFilter(Document, ElementId) Applies the filter to a given element.
(Inherited from ElementFilter)
Public methodToStringReturns 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.
Example
Copy
// Use Exclusion filter to find exclude a set of elements in the document automatically 

// Find all walls that are not currently selected, 
// Get all element ids which are current selected by users, exclude these ids when filtering
ICollection<ElementId> selectedIds = uiDocument.Selection.GetElementIds();

// Use the selection to instantiate an exclusion filter
ExclusionFilter filter = new ExclusionFilter(selectedIds);
// For the sake of simplicity we do not test here whether the selection is empty or not,
// but in production code a proper validation would have to be done to avoid an argument
// exception from the filter's consructor.

// Apply the filter to the elements in the active document,
// Use shortcut method OfClass() to find Walls only
FilteredElementCollector collector = new FilteredElementCollector(uiDocument.Document);
IList<Element> walls = collector.WherePasses(filter).OfClass(typeof(Wall)).ToElements();
' Use Exclusion filter to find exclude a set of elements in the document automatically 

' Find all walls that are not currently selected, 
' Get all element ids which are current selected by users, exclude these ids when filtering
Dim selectedIds As ICollection(Of ElementId) = uiDocument.Selection.GetElementIds()

' Use the selection to instantiate an exclusion filter
Dim filter As New ExclusionFilter(selectedIds)
' For the sake of simplicity we do not test here whether the selection is empty or not,
' but in production code a proper validation would have to be done to avoid an argument
' exception from the filter's consructor.

' Apply the filter to the elements in the active document,
' Use shortcut method OfClass() to find Walls only
Dim collector As New FilteredElementCollector(uiDocument.Document)
Dim walls As IList(Of Element) = collector.WherePasses(filter).OfClass(GetType(Wall)).ToElements()

No code example is currently available or this language may not be supported.

No code example is currently available or this language may not be supported.

See Also

T:Autodesk.Revit.DB.ExclusionFilter