by Raghuraja. C (21 Submissions)
Category: Miscellaneous
Compatability: VB 6.0
Difficulty: Unknown Difficulty
Originally Published: Thu 17th February 2005
Date Added: Mon 8th February 2021
Rating: 
(1 Votes)
Function to validate and allow only Alpha Numeric - not allowing to enter Special characters
VBcoders
Private Sub txtAlphNumeric_KeyPress(KeyAscii As Integer)
KeyAscii = fnAlfaChk(KeyAscii)
End Sub
'to allow the dbl data input
Public Function fnAlfaChk(keyAsc As Integer) As Integer
If keyAsc = 8 Then
fnAlfaChk = keyAsc
Exit Function
End If
If InStr("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789.-+_*?><| ", Chr(keyAsc)) <> 0 Then
fnAlfaChk = keyAsc
Else
fnAlfaChk = 0
End If
End Function
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