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Hi everyone, is it possible to make a custom validator work on multiple
fields?

I have 3 input text boxes, I would like a validator that checks to ensure at
least 1 of them contains informaion before allowing the form to be
submitted.

Any help apprecated,

Kind regards
Taz

Hi,

you can use CustomValidator so that don't specify the ControlToValidate at
all. In that case, you'd sort of hard-code in the validation logic which
controls you check for with it. That way you can check multiple of them.

I've also developed (though a long time ago, so the quality of code is what
it is) such validator which can take the controls to be validated as
comma-separated string
http://authors.aspalliance.com/jotek...1/article.aspx

--
Teemu Keiski
ASP.NET MVP, AspInsider
Finland, EU
http://blogs.aspadvice.com/joteke


"Tarun Mistry" <> wrote in message
news:%...
> Hi everyone, is it possible to make a custom validator work on multiple
> fields?
>
> I have 3 input text boxes, I would like a validator that checks to ensure
> at least 1 of them contains informaion before allowing the form to be
> submitted.
>
> Any help apprecated,
>
> Kind regards
> Taz
>

Many thanks Teemu, this is exactly what I needed.

Appreciate your help.

Regards
Taz

[sofiat9]

Hi Teemu, I added the code above to my vb.net project. I need to make user the user enters at least one of 3 textfield values. However, I'm getting the following two errors: Error1 Element 'EmptyControlCompareValidator' is not a known element. This can occur if there is a compilation error in the Web site. Error2 Unknown server tag 'asp:EmptyControlCompareValidator'. Any help would be appreciated. Thanks! Sofia

[sofiat9]

Hi, I added the code above to my vb.net project. I need to make user the user enters at least one of 3 textfield values. However, I'm getting the following two errors: Error1 Element 'EmptyControlCompareValidator' is not a known element. This can occur if there is a compilation error in the Web site. Error2 Unknown server tag 'asp:EmptyControlCompareValidator'.

I added the following code as well on the top of my source code:

<%@ Register Assembly="EmptyControlCompareValidator" Namespace="MansoftValidators" TagPrefix="cc1" %>

Any help would be appreciated. Thanks! Sofia