[Seaside] Seaside updater

[Gerhard Obermann]

Hi!

I made a quick and dirty example!

HTH
Gerhard

 | formId |
 formId := html nextId.
 html form id: formId;
  with: [html checkbox value: false; callback: [:v | set := v];
    onClick: (html evaluator triggerForm: formId;
                          callback: [:script | script element id: 'text';
update: [:r | set ifTrue: [r text: 'My address']
                            ifFalse: [r text: '']] ]).
     html textArea id: 'text'; with: [html text: 'Empty']].




On Sat, Mar 8, 2008 at 4:38 PM, Richard K Eng <richard.eng at rogers.com>
wrote:

> I'm puzzled how to use #updater. I'm trying to use a checkbox to add text
> to
> a textArea input field. For example,...
>
> renderBillingCheckboxAndAddressOn: html
>  html div
>  class: 'frow';
>  with:
>   [html break.
>   html paragraph:
>    [html checkbox
>     value: useShippingAddress;
>     callback: [:value | useShippingAddress := value];
>     onClick: (html updater id: 'shipping';
>       callback: [:r | useShippingAddress := useShippingAddress not.
>          self renderBillingAddressOn: r] );
>     with: 'Use shipping address as billing address also']].
>  html div
>  class: 'frow';
>  with:
>   [html span
>    class: 'formlabel';
>    with: [html text: 'Billing address'].
>   html span
>    class: 'forminput';
>    with: [self renderBillingAddressOn: html]]
>
>
> This code works, but I'm sure it's not the right way to do things. The
> reason I have the 'useShippingAddress := useShippingAddress not' nonsense
> is
> because without it, I can't get #useShippingAddress to have the correct
> checkbox value in #renderBillingAddressOn:. The problem is,
> #useShippingAddress only gets the correct checkbox value on form
> submission,
> NOT upon invocation of #onClick:.
>
> Ultimately, what I want is for #onClick: to use whatever value is selected
> by the form control, whether the control is a checkbox or radio button or
> dropdown menu. This *has* to be doable, so the question is:  HOW???
>
> Regards,
> Richard
>
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