public static Range Union(
Object r1,
Object r2,
Object r3
)Public Shared Function Union (
r1 As Object,
r2 As Object,
r3 As Object
) As Range
Dim r1 As Object
Dim r2 As Object
Dim r3 As Object
Dim returnValue As Range
returnValue = ExcelHelper.Union(r1, r2, r3)