问题描述
我正在使用JSF 2.2.9,我有以下dataTable和buttons:
pre $ < h:commandButton id =commandButtonRemoverSelected
actionListener =#{managedBeanName.removeSelected()}
class =btn btn-primaryvalue =Sim>
< / h:commandButton>
< h:dataTable var =beanvalue =#{managedBeanName.beans}styleClass =table table-hover
binding =#{managedBeanName.dataTable} >
< h:列headerClass =smallColumn>
< f:facet name =header>
< h:selectBooleanCheckbox valueChangeListener =#{managedBeanName.selectAll}>
< / h:selectBooleanCheckbox>
< / f:facet>
< h:selectBooleanCheckbox value =#{managedBeanName.registrosSelecionados [bean]}/>
< / h:栏>
< / h:dataTable>
按钮commandButtonRemoverSelected在第二次点击时调用actionListener。当我从datatabe中删除以下行时,一切正常(第一次单击时调用commandButton):
< h:selectBooleanCheckbox value =#{managedBeanName.registrosSelecionados [bean]}/>
因此,我的managedBean有一个名为'registrosSelecionados'的MAP,它应该存储一对Bean,Boolean 。请参阅:
私人地图< Bean,布尔> registrosSelecionados = new HashMap< Bean,Boolean>();
解决方案
我用解决方法解决了问题,我会分享这个:
1 - I注意到每个第一个commandButton都会调用'getRegistrosSelecionados()',actionListener则不会。所以我想JSF正在处理getRegistrosSelecionados()并且不处理actionListener,我不知道为什么,这是真正的问题。在第二次点击actionListener被处理,因为所有复选框已经发送到ManagedBean,在第一次点击。
2 - 所以,我的解决方法是强制每个点击复选框调用JSF请求并且不要等待commandButton提交。以这种方式当单击commandButton时,所有复选框都被处理。
< h:selectBooleanCheckbox value =#{cc.attrs.managedBeanName.registrosSelecionados [bean]}>
< f:ajax execute =@ thisrender =@ this/>
< / h:selectBooleanCheckbox>
我的复选框收到ajax只执行自己并呈现自己,当我点击commandButton时,我只需要执行commandButton并再次呈现表单:
< h:commandButton id =commandButtonRemoverSelected
actionListener = #{cc.attrs.managedBeanName.removeSelected()}
class =btn btn-primaryvalue =Sim>
< / h:commandButton>
这种解决方法适用于我,因为我没有找到针对此问题的更好解决方案。 p>
I'm working with JSF 2.2.9, i have the following dataTable and buttons:
<h:commandButton id="commandButtonRemoverSelected"
actionListener="#{managedBeanName.removeSelected()}"
class="btn btn-primary" value="Sim">
</h:commandButton>
<h:dataTable var="bean" value="#{managedBeanName.beans}" styleClass="table table-hover"
binding="#{managedBeanName.dataTable}">
<h:column headerClass="smallColumn">
<f:facet name="header">
<h:selectBooleanCheckbox valueChangeListener="#{managedBeanName.selectAll}">
<f:ajax execute="@form" render="@all" />
</h:selectBooleanCheckbox>
</f:facet>
<h:selectBooleanCheckbox value="#{managedBeanName.registrosSelecionados[bean]}" />
</h:column>
</h:dataTable>
The button "commandButtonRemoverSelected" just call actionListener on second click. When i remove the following line from datatabe everything works fine (the commandButton is called on first click):
<h:selectBooleanCheckbox value="#{managedBeanName.registrosSelecionados[bean]}" />
So, my managedBean have a MAP called 'registrosSelecionados' that should store a pair "Bean,Boolean". See:
private Map<Bean, Boolean> registrosSelecionados = new HashMap<Bean, Boolean>();
SOLUTION
I solved the problem with a workaround and i would share this:
1 - I noted that every first commandButton click the 'getRegistrosSelecionados()' is called and actionListener don't. So i imagine that JSF is processing getRegistrosSelecionados() and don't processing actionListener, i don't know why and this is the real problem. In second click the actionListener is processed because all checkboxs already sent to ManagedBean, in first click.
2 - So, my workaround is force that each click in checkbox call JSF request and don't wait for commandButton submit. In this way when commandButton is clicked all checkbox was processed.
<h:selectBooleanCheckbox value="#{cc.attrs.managedBeanName.registrosSelecionados[bean]}">
<f:ajax execute="@this" render="@this" />
</h:selectBooleanCheckbox>
My checkbox received the ajax to execute only itself and render itself, when i click in commandButton i just need execute the commandButton and render the form again:
<h:commandButton id="commandButtonRemoverSelected"
actionListener="#{cc.attrs.managedBeanName.removeSelected()}"
class="btn btn-primary" value="Sim">
<f:ajax execute="@this" render="@form" />
</h:commandButton>
This workaround works for me, as i didn't found a better solution for this problem.
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