public static DateOnlyRange Union(
	this DateOnlyRange a,
	DateOnlyRange? b
)Dim a As DateOnlyRange
Dim b As DateOnlyRange
Dim returnValue As DateOnlyRange
returnValue = a.Union(b)public:
[ExtensionAttribute]
static DateOnlyRange^ Union(
	DateOnlyRange^ a, 
	DateOnlyRange^ b
)No code example is currently available or this language may not be supported.