validate username

Following code validate username using pattern regular expression.
Max length =10 , min =4 .
We check that both numbers and characters.

Code:

<% 
    ' username 
    Dim username
    Dim regularExpressions = New Regex
    ' regular expression .
    With regularExpressions
        .Pattern = "^[a-zA-Z0-9]{4,10}$"
        .IgnoreCase = True
        .Global = True
    End With
    username = "asi323"
     show test against pattern.
    Response.Write("asi323 tested with pattern ^[a-zA-Z0-9]{3,8}$ :" & regularExpressions.test(username))
%>
 

_________________
M. S. Rakha, Ph.D.
Queen's University
Canada

Author: DrRakha
Mastermind

Posts: 2715
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