Wire Event Listeners"
From Documentation
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− | To wire event listeners in a ViewModel like [[ZK Developer's Reference/MVC/Controller/Wire Event Listeners]], we have to call < | + | To wire event listeners in a ViewModel like [[ZK Developer's Reference/MVC/Controller/Wire Event Listeners]], we have to call <code> Selectors.wireEventListeners() </code> in a method with <code>@AfterCompose</code>. We then can use <code> @Listen</code> to declare a method as an event listener. '''We do not recommend this usage''' because it loses <b>ViewModel</b> an important advantage: loose coupling with View. '''Please evaluate the trade-offs before using it.''' |
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− | * < | + | * <code> Selectors.wireEventListeners()</code> 's first parameters is Root View Component which can be retrieved by <code>@ContextParam</code>. |
Revision as of 14:13, 12 January 2022
This article is out of date, please refer to zk-mvvm-book/8.0/data_binding/advanced/wire_event_listeners for more up to date information.
since 6.0.2
To wire event listeners in a ViewModel like ZK Developer's Reference/MVC/Controller/Wire Event Listeners, we have to call Selectors.wireEventListeners()
in a method with @AfterCompose
. We then can use @Listen
to declare a method as an event listener. We do not recommend this usage because it loses ViewModel an important advantage: loose coupling with View. Please evaluate the trade-offs before using it.
Wire event listener in a ViewModel
public class SearchAutowireVM{
@AfterCompose
public void afterCompose(@ContextParam(ContextType.VIEW) Component view){
Selectors.wireEventListeners(view, this);
}
@Listen("onClick=#mybutton")
public void submit(MouseEvent event){
//handle events
}
}
Selectors.wireEventListeners()
's first parameters is Root View Component which can be retrieved by@ContextParam
.
Version History
Version | Date | Content |
---|---|---|
6.0.0 | May 2012 | Supplement |
6.0.2 | July 2012 | The @AfterCompose was introduced. |