Prevents special characters from being entered into a textbox

by Jon Hickman (1 Submission)
Category: Miscellaneous
Compatability: VB 6.0
Difficulty: Unknown Difficulty
Originally Published: Fri 15^th February 2002
Date Added: Mon 8^th February 2021
Rating: (1 Votes)

Rate Prevents special characters from being entered into a textbox




'Private Sub txtLastName_KeyPress(KeyAscii As Integer)
    'KeyAscii = Prevent_Special_Chars(KeyAscii)
'End Sub

'function can be adjusted to allow/disallow any values you want


Public Function Prevent_Special_Chars(KeyAscii As Integer) As Integer
'prevents a user from entering a special characters and numbers into a control from where the function is called
    If (KeyAscii >= 33 And KeyAscii <= 64) Or (KeyAscii >= 91 And KeyAscii <= 96) Or (KeyAscii >= 123 And KeyAscii <= 126) Then
        Prevent_Special_Chars = 0
    Else
        Prevent_Special_Chars = KeyAscii
    End If
End Function

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