Using Custom Validator in ASP.NET 3.5

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Hello All,

I am trying to use a Custom Validator for the validation of the Length of the User Name. I am using VBScript as the scripting language.

But when I try to run the code i am getting an Error.

Below is the script which I am using in m ASP.NET page.

<script language="vbscript" type="text/vbscript">
          Sub Validate (val,arguments)
                If(val.Length=6) Then
                        arguments.IsValid=True
                Else
                        arguments.IsValid=False
                        
                End If
                
          End Sub
                
        
        </script>

Following is the code for the CustomValidtor.

<asp:customvalidator id="CustomValidator1" runat="server" xmlns:asp="#unknown">
            ErrorMessage="User name length should be minimum 6 characters" 
            onservervalidate="CustomValidator1_ServerValidate" 
            ClientValidationFunction="Validate" ControlToValidate="TextBox1"></asp:customvalidator>

Kindly assist.
Many Thanks in Advance

Posted 16-Aug-10 8:39am

Mukund Kallapur

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AspDotNetDev 16-Aug-10 14:42pm

What error are you getting?

Mukund Kallapur 16-Aug-10 14:45pm

The execution stops and asks whether to Break, Continue or Ignore pointing to this line "If(val.Length=6) Then"

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Al-Farooque Shubho · Accepted Answer · 2010-08-17T06:43:00

I wish I knew VBScript, but, I don't know it. However, I was able to run the Custom Validation properly using Javascript. Please try to modify the JavaScript code to VBScript, I believe it won't be hard for you :)

Here is the Code:

(Please note that, I also added a RequiredFieldValidator to validate the empty inputs)

XML

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default2.aspx.cs" Inherits="Default2" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title>Untitled Page</title>
    <script language="javascript" type="text/javascript">
          function Validate(sender, args)
          {
             if(args.Value.length == 6)
                args.IsValid = true;
             else
                args.IsValid = false;
          }
        </script>
</head>
<body>
    <form id="form1" runat="server">
    <div>
    <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
    <asp:CustomValidator id="CustomValidator1" Display="Dynamic" runat="server"
            ErrorMessage="User name length should be minimum 6 characters"
            onservervalidate="CustomValidator1_ServerValidate"
            ClientValidationFunction="Validate" EnableClientScript="true" ControlToValidate="TextBox1"/><asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server" Display="Dynamic" ErrorMessage="User name required" ControlToValidate="TextBox1"></asp:RequiredFieldValidator>
        <br />
        <asp:Button ID="Button1" runat="server" Text="Button" />
    </div>
    </form>
</body>
</html>