How to create a alphanumeric sequence on vba

Hi, I need to create a code that are composed by 2 digits and I want to use all the numbers (0-9) and letters (A-Z). Could some help me to create the vba code to do this please? Ex: after th...

developer

excel

Formulas and Functions

Macros and VBA

HansVogelaar

Dec 27, 2022

HSalles

New version:

Function nextUDI(prevUDI As String) As String
    'Gera UDI com base no número anterior
    Dim prefixo As String
    Dim n As Long
    Dim prevVal As Long
    Const strAlphabet = "0123456789ABCDEFGHJKLMNPQRSTUVWXYZ"
    n = Len(prevUDI)
    prevVal = 34 * (InStr(strAlphabet, Mid(prevUDI, n - 1, 1)) - 1) + InStr(strAlphabet, Right(prevUDI, 1)) - 1
    prefixo = Left(prevUDI, n - 2)
    nextUDI = prefixo & fBase34(prevVal + 1)
End Function

HansVogelaar

MVP

Dec 23, 2022

HSalles

Function nextUDI(prevUDI As String) As String
    'Gera UDI com base no número anterior
    Dim prefixo As String
    Dim prevVal As Long
    prevVal = Application.Decimal(Right(prevUDI, 2), 34)
    prefixo = Left(prevUDI, Len(prevUDI) - 2)
    nextUDI = prefixo & fBase34(prevVal + 1)
End Function

HSalles

Copper Contributor

Dec 26, 2022

HansVogelaar

I was using the vba code that you suggested and it was going great but the code is jumping from the 3J to 3L (I think that it is becasue I don't use "I"), from 3N to 3Q (I think that it is because I don't use "O") and from 3Y and 3Z to #value... could you help me please?

The vba code that I'm using is:

Function fBase34(ByRef lngNumToConvert As Long) As String
'Converte base 10 para 34 (base 36 sem I e O)
Dim strAlphabet As String

strAlphabet = "0123456789ABCDEFGHJKLMNPQRSTUVWXYZ"

If lngNumToConvert = 0 Then
Base34Encode = "0"
Exit Function
End If

fBase36Encode = vbNullString

Do While lngNumToConvert <> 0
fBase34 = Mid(strAlphabet, lngNumToConvert Mod 34 + 1, 1) & fBase34
lngNumToConvert = lngNumToConvert \ 34
Loop

If Len(fBase34) = 1 Then
fBase34 = "0" + fBase34
End If

End Function

Function genUDI(ByRef decNum As Long, prefixo As String) As String
'Gera UDI com base em um numero decimal

genUDI = prefixo & fBase34(decNum)

End Function

Function nextUDI(prevUDI As String) As String
'Gera UDI com base no número anterior

Dim prefixo As String
Dim prevVal As Long
prevVal = Application.Decimal(Right(prevUDI, 2), 34)
prefixo = Left(prevUDI, Len(prevUDI) - 2)
nextUDI = prefixo & fBase34(prevVal + 1)
End Function

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How to create a alphanumeric sequence on vba

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