VB - Invalid use of Null: CInt - Trying to use value from DATEDIFF as an Index for an array.

I'm guessing that it's going to be something obvious for someone, but I can't see it.   I'm counting up the number of cases based upon how old they are. Below is my code, and I get the error on the DateDiff line.

ERROR: Invalid use of Null: 'CInt'

_____________________________________________

Do While Not rsClientInfo.EOF

   If rsClientInfo("CaseOpenDate") = Null Then
       Response.Write "This is BS" & rsClientInfo("CaseNumber")   ' <-- None Found
   Else
       YearsOpen = CInt(DATEDIFF("y", rsClientInfo("CaseOpenDate"), Now()))
       If YearsOpen > 4 Then
          YearsOpen = 4
       End If
       CaseCount(YearsOpen) = CaseCount(YearsOpen) + 1      
   End if
            
rsClientInfo.MoveNext
Loop
jahworldAsked:
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RogueSolutionsCommented:
I think your test of Null is the suspect part

Try

     If IsNull(rsClientInfo("CaseOpenDate")) Then

The fact that the Nulls are not being picked by your test means the CInt can get passed nonsense.



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jahworldAuthor Commented:
Damnit......I knew it was something obvious.

Thanks!!
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RogueSolutionsCommented:

Yeah, but neither vb nor the database can be bothered to complain so what can you do ;)
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Visual Basic Classic

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