JavaScript - Validation Function [RESOLVED]

I need to validate a text box in an ASP.NET project and am trying to use JavaScript even though I have never used it before. My task is so simply, I am embarrassed to ask; how do I ensure my string is at least 6 characters?

Here is my existing code:

Code:

---

<script language="javascript">
        function PasswordCheck(source, arguments)
                {
                        if string.length(arguments.value) > 5)
                                arguments.IsValid=true;
                        else
                                arguments.IsValid=false;
                }
</script>

---

I get an "Object Required" error when it runs. :(

NameOfString.length will give you the length of the string.

I've changed my code accordingly:

Code:

---

<script language="javascript">
        function PasswordCheck(source, arguments)
                {
                        if arguments.value.length > 5
                                arguments.IsValid=true;
                        else
                                arguments.IsValid=false;
                }
</script>

---

...but I still get "Object Expected" error...:(

What is "source" and "arguments"?

To clarify, I the function should be being called from the following validation control:

Code:

---

<asp:customvalidator
        id="CustomValidator1"
        runat="server"
        ClientValidationFunction="PasswordCheck"
        ControlToValidate="txtPassword"
        Display="Dynamic"
        ErrorMessage="The password must be at least 6 characters,">
</asp:customvalidator>

---

try this
<script language="javascript">
function PasswordCheck(source, argumentsID)
{
var obj = document.getelementbyid(argumentsID)
if (obj)
{
if obj.value.length > 5
return true;
else
return false;
}

}
</script>

I still don't see how source and argument are passed to that function.

skv_noida

Thanks, but I can't get the function you suggested to pass the syntax check...:(

Mendhak

Quote:

---

I still don't see how source and argument are passed to that function.

---

All I can say is that I can get it working in vbScript. The validation functions are supposed to take those parameters as far as I can tell. However, I need to get this working in JavaScript...

Doesn't anybody here know how to write validation functions for the CustomerValidator control in javascript here? I would have thought it were such a simple task, something that was common place...:confused:

Perhaps if anyone can tell me how to declare and instantiate a string object, assign it's value from arguments.value, that would probably do it...

Your problem is 'value' is lowercase, the first letter should be capitalized in your script above... args.Value instead of args.value.


Here's a tip :

Type in 'CustomValidator' in google, and the first hit has a step-by-step on how to work with CustomValidators.

Here's another tip:

Next time you need help with Javascript strings, type 'Javascript Strings' into Google first...you'll get a much faster response - I guarantee it!

Thankyou nemaroller! So Javascript's case sensitive, eh?