Esta OCX la bajé de la AFIP. Está buena.
Y un pequeñiiiisimo programa hecho por mi, para chequearla.
Le faltan algunas validaciones, pero es una punta.

Lic. Diego A. Montero
TE    : 02337-452272 - Cel.: 02392-15-635176
Email: [EMAIL PROTECTED]
MSN : [EMAIL PROTECTED]
Belgrano 140 – America (Bs.As.)
Skpye: diegoamontero

-----Original Message-----
From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of G.Asato
Sent: Thursday, 28 de September de 2006 18:05
To: vbusers List Member
Subject: [vbusers] Validacion de CUIT

Te lo paso

Public Function VerificarCuit(strCuit As String) As Boolean
    Dim intVerifArry(1 To 10) As Integer
    Dim intSuma As Integer
    Dim intDig As Integer
    Dim i As Long

    intVerifArry(1) = 5
    intVerifArry(2) = 4
    intVerifArry(3) = 3
    intVerifArry(4) = 2
    intVerifArry(5) = 7
    intVerifArry(6) = 6
    intVerifArry(7) = 5
    intVerifArry(8) = 4
    intVerifArry(9) = 3
    intVerifArry(10) = 2
    strCuit = Replace(strCuit, "-", "")
    If Len(strCuit) < 11 Then
        VerificarCuit = False
        Exit Function
    End If
    For i = 1 To 10
        intSuma = intSuma + Val(Mid(strCuit, i, 1)) * intVerifArry(i)
    Next i
    intDig = 11 - (intSuma Mod 11)

    If intDig = 11 Then
        intDig = 0
    ElseIf intDig = 10 Then
        intDig = 9
    End If
    VerificarCuit = IIf(intDig = Val(Right(strCuit, 1)), True, False)
End Function

Espero que te sirva
Saludos
Gabriel

----- Original Message ----- 
From: "Carlos Bernardo Maggiotti" <[EMAIL PROTECTED]>
To: "vbusers List Member" <[email protected]>
Sent: Thursday, September 28, 2006 4:09 PM
Subject: [vbusers] Validacion de CUIT


Buenas...

Ya se que esto se posteo como mil veces, pero mil una no deberia ser 
molestia...

Alguien tiene a mano el codigo VB (o link) para verificar CUITs?

Saludos y gracias de antemano...
CarlosMag
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