FilteredElementCollectorUnionWith Method

Unites the set of elements passing the filter in this collector with the set of elements passing the filter in another collector.

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

Syntax

C++

Copy

public FilteredElementCollector UnionWith(
	FilteredElementCollector other
)

Public Function UnionWith ( 
	other As FilteredElementCollector
) As FilteredElementCollector

public:
FilteredElementCollector^ UnionWith(
	FilteredElementCollector^ other
)

member UnionWith : 
        other : FilteredElementCollector -> FilteredElementCollector

Parameters

other FilteredElementCollector: The other collector

Return Value

FilteredElementCollector
A handle to this collector. This is the same collector that has just been modified, returned so you can chain multiple calls together in one line.

Exceptions

Exception	Condition
ArgumentException	The collector does not have a filter applied. Extraction or iteration of elements is not permitted without a filter.
ArgumentNullException	A non-optional argument was null
InvalidOperationException	The collector does not have a filter applied. Extraction or iteration of elements is not permitted without a filter.

Remarks

The result will be the same as using a LogicalOrFilter to connect this filter with another. If you have an active iterator to this collector it will be stopped by this call.

Reference

FilteredElementCollector Class

Autodesk.Revit.DB Namespace