M

FilteredElementCollector.UnionWith

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

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.

public FilteredElementCollector UnionWith(
	FilteredElementCollector other
)

Public Function UnionWith ( _
	other As FilteredElementCollector _
) As FilteredElementCollector

public:
FilteredElementCollector^ UnionWith(
	FilteredElementCollector^ other
)

Autodesk.Revit.DB.FilteredElementCollector

other

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.

Autodesk.Revit.Exceptions.ArgumentException

The collector does not have a filter applied. Extraction or iteration of elements is not permitted without a filter.
Autodesk.Revit.Exceptions.ArgumentNullException

A non-optional argument was null
Autodesk.Revit.Exceptions.InvalidOperationException

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