removing a widget

[Siemen Baader]

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

[benoit]

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 :

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