2027 Class
Changes 0
C

FamilyInstanceFilter

Description:
A filter used to find elements that are family instances of the given family symbol.
Remarks:
This filter is a slow filter, but it uses a quick filter to eliminate non-candidate elements before the elements are obtained and expanded. Therefore this filter does not have to be paired with another quick filter to minimize the number of Elements that are expanded.
Inheritance Hierarchy:
System.Object
  Autodesk.Revit.DB.ElementFilter
    Autodesk.Revit.DB.ElementSlowFilter
      Autodesk.Revit.DB.FamilyInstanceFilter
// Creates a FamilyInstance filter for elements that are family instances of the given family symbol in the document

// Find all family symbols whose name is "W10X49"
FilteredElementCollector collector = new FilteredElementCollector(document);
collector = collector.OfClass(typeof(FamilySymbol));

// Get Element Id for family symbol which will be used to find family instances
var query = from element in collector where element.Name == "W10X49" select element;
List<Element> famSyms = query.ToList<Element>();
ElementId symbolId = famSyms[0].Id;

// Create a FamilyInstance filter with the FamilySymbol Id
FamilyInstanceFilter filter = new FamilyInstanceFilter(document, symbolId);

// Apply the filter to the elements in the active document
collector = new FilteredElementCollector(document);
ICollection<Element> familyInstances = collector.WherePasses(filter).ToElements();
Name Return Type Description Inherited From
C FamilyInstanceFilter(Document, ElementId) None Constructs a new instance of a filter to match family instances of the given family symbol.
Name Return Type Description Inherited From
M Dispose() None (Inherited from ElementFilter ) ElementFilter
M Equals None Determines whether the specified object is equal to the current object. (Inherited from Object ) Object
M GetHashCode None Serves as the default hash function. (Inherited from Object ) Object
M GetType None Gets the Type of the current instance. (Inherited from Object ) Object
M PassesFilter(Element) Boolean Applies the filter to a given element. (Inherited from ElementFilter ) ElementFilter
M PassesFilter(Document, ElementId) Boolean Applies the filter to a given element. (Inherited from ElementFilter ) ElementFilter
M ToString None Returns a string that represents the current object. (Inherited from Object ) Object
Name Return Type Description Inherited From
P FamilySymbolId ElementId The family symbol id.
P Inverted bool 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 ) ElementFilter
P IsValidObject Boolean Specifies whether the .NET object represents a valid Revit entity. (Inherited from ElementFilter ) ElementFilter