Check if string array contains non-empty strings without loop

Check if string array contains non-empty strings without loop

I have an If statement that checks a number of things (BaySlots() is an
array of strings).
If (Not BaySlots.Contains(Not String.Empty)) OrElse
(Not BayAcId = 0 AndAlso Not BayAcId = acProgramId _
AndAlso overrideSetting = False) Then
I though the Array.Contains method of the first condition would be
sufficient to tell me if the array held only empty strings, but it gives
InvalidCastException: Conversion from string "" to type Long is not valid
so I'm guessing Not String.Empty is actually evaluated to something that
is attempted to be converted to a Long.
Is there a better method I can use to retro-fit this If, so that I can
still include the test for only empty strings in the array, as part of the
If, rather than having to add a preceding loop to test each index of
BaySlots() for an empty string?
I thought there should probably be some way of testing this other than
looping as that would be a relative lot of work just to test if there was
no content.
Thanks
PS just to clarify this is not to test if the array has zero dimensions or
is equal to Nothing but that the strings it does contain are all equal to
String.Empty.