Sets a custom duplicate type names handler. If this value is not set, the default handler is used. By default, Revit displays a modal dialog with options to either copy new types only, or cancel the operation.

public void SetDuplicateTypeNamesHandler(
	IDuplicateTypeNamesHandler handler
)

Public Sub SetDuplicateTypeNamesHandler ( _
	handler As IDuplicateTypeNamesHandler _
)

public:
void SetDuplicateTypeNamesHandler(
	IDuplicateTypeNamesHandler^ handler
)