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removing a widget

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Siemen Baader

removing a widget

Hi,

so ILWidget has #append: and #prepend: methods, but no #remove method to remove the current widget from the page. Or does it?

I could create an empty 'NullWidget' and use #show: or pass references to the containing widget to mark it dirty as in the ILTodoListApplication example, but these are cumbersome. Any ideas?

Thanks,

Siemen

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benoit

Re: removing a widget

Hello Siemen,

to remove a widget adder with #append: or #prepend: you just need to
send to the widget the message #answer:

Here an example taken from one of my apps :

MyWidget>>contents
^ [ :e |
e build: self quoiButton.
e build: self emplacementButton.
quoi isNotNil & emplacement isNotNil
ifTrue: [ e build: self createButton ].
e build: self cancelButton ]

MyWidget>>cancelButton
| widget |
widget := NUBButtonWidget new.
widget
text: 'Annuler';
action: [ self answer: nil ].
^ widget

MyWidget is added to MyApp with #append.
NUBButtonWidget is just a widget wrapping a link or a form presented
as a button.
When the user click on the button, MyWidget is removed from MyApp.

@+
Benoit

Le 06/01/20 à 08:53, Siemen Baader a écrit :

> Hi,
>
> so ILWidget has #append: and #prepend: methods, but no #remove method to
> remove the current widget from the page. Or does it?
>
> I could create an empty 'NullWidget' and use #show: or pass references
> to the containing widget to mark it dirty as in the
> ILTodoListApplication example, but these are cumbersome. Any ideas?
>
> Thanks,
> Siemen
>
> --
> You received this message because you are subscribed to the Google
> Groups "Iliad project" group.
> To unsubscribe from this group and stop receiving emails from it, send
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> <https://groups.google.com/d/msgid/iliad/CAM47ZxpVOAKYL%2BmU%2BS5Ds8GqAixKBO-JzYqxhvpZxKLh_z6fLA%40mail.gmail.com?utm_medium=email&utm_source=footer>.