FilteredElementCollectorToElementIds Method

Returns the complete set of element ids that pass the filter(s).

Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 25.0.0.0 (25.0.0.0)

Syntax

public ICollection<ElementId> ToElementIds()

Public Function ToElementIds As ICollection(Of ElementId)

public:
ICollection<ElementId^>^ ToElementIds()

member ToElementIds : unit -> ICollection<ElementId>

Return Value

ICollectionElementId
The complete set of element ids.

Exceptions

Exception	Condition
InvalidOperationException	The collector does not have a filter applied. Extraction or iteration of elements is not permitted without a filter.

Remarks

This will reset the collector to the beginning and extract all elements that pass the applied filter(s). If you have an active iterator to this same collector it will be stopped by this call.

Reference

FilteredElementCollector Class

Autodesk.Revit.DB Namespace