I have the below IF statements tried on both VB6 and VB.net

Dim str As String = ""

If str = "," Or str = "," Or str = """" Then
   'execute A
End If

When the str value is “，” (a full-width comma),
on VB6 A does not get executed while on VB.net it goes into the IF statement
and executes A.

The weird thing here is when I put this statement on watch when str = “，”,
「 str = “,” Or str = “,” Or str = “””” 」
it returns false, but still goes in the IF statement to execute A.

Does anyone has a clue to as to why this is happening?

I have tried changing from Or to orElse, and made sure the
Option Explicit On is there but its still the same result.
Im still new to VB.net so i might lack some foundation,
so any help is greatly appreciated.