Text filed should allow only characters??

[shanuragu]

Hi,

How can I do Character validation ie, text field should allow only characters not even special characters in VB script. Some what like IsNumeric for numbers I need a function to validate only for characters.

thnx in advance

shan

[buntine]

Try regular expressions. VBScript has a small, but sufficient Reg Exp API.

Dim objRegExp, strField, isValid

Set objRegExp = New RegExp

With objRegExp
.Pattern = "^[a-bA-B]{1,}$"
.IgnoreCase = True
.Global = True
End With

isValid = objRegExp.Test(strField)

If isValid Then
'' Only contains letters.
Else
'' GRR! Invalid.
End If

Regards.

[shanuragu]

Hi,

The text box (of length 15) should allow only characters. How can I do that. I tried the following but not getting exact result.

Dim objRegExp, isValid, strCheck
Set objRegExp = New RegExp
With objRegExp
.Pattern = "[A-Za-z]"
.IgnoreCase = True
.Global = True
End With

isValid = objRegExp.Test(strValue)
if Not(isValid) Then
acceptOnlyChars = False
Exit Function
End If