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Tip of the Day
Language: VB4,VB5,VB6,VBS
Expertise: beginner
Jul 17, 1999

Check a GUID

The following routine quickly check that a string contains a valid GUID. Of course, it doesn't check that the GUID refers to a valid entity, but at least it lets you quickly reject invalid values:


 Function CheckGUID(Value As String) As Boolean
    Const PatternGUID = "{########-####-####-####-############}"
    CheckGUID = UCase$(Value) Like Replace(PatternGUID, "#", "[0-9,A-F]")
 End Function
Francesco Balena
 
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