Re: Form Validation

Hi,Diez
  You can see the code in "LoginScreen.java" of the DiscRack sample.If I 
click the "Submit" without filling the "username" field which has the 
NotNullValidator,will the "LoginValidator" execute?If "yes",will I get the 
Exceptione for the "null" problem?If I comment out the code---
if (user != null && password != null)---It seems a NullPointException will 
be thrown.But this special code is for the validation for "Null input" and 
a validator for forbiding "blank input" has been defined.Is that redundant?


>From: "Diez B. Roggisch" <[email protected]>
>Reply-To: [email protected]
>To: [email protected]
>Subject: Re: [Barracuda] Form Validation
>Date: Tue, 1 Jul 2003 22:13:51 +0200
>
>Hi,
>
> >   I just have a question about the process of "Form Validation".If I 
have
> > the following code--- ---this.defineElement( new
> > DefaultFormElement(lOG_NAME,FormType.STRING,null,new
> > NotNullValidator("Login Name error"),false) );
> >
> > And I also define a form validator later.When I call
> > "form.map().validate(true)" and I didn't fill the "login" field,will 
the
> > validation process stop here? If not,and the ValidationException is 
also
> > thrown in my form validator,will I catch the exception from the
> > "NotNullValidator"?
>
>As you wrote yourself: By passing true to validate, the exceptions that 
occur
>in single validators are deferred, so you end up with one exception
>containing all exceptions thrown in your formvalidators. Or, to put it
>differetn: the validation of subsequent formelements won't stop after one
>validator fails.
>
>Diez
>
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