JSF AJAX 请求不适用于 hx:panelDialog
我编写了以下代码,
<h:form id="PrefForm" >
<hx:commandExButton id="preferenceButton" type="button" style="align:right;" value="#{nls.preferenceLink }" title="#{nls.preferenceLinkTitle}" >
<hx:behavior event="onclick" behaviorAction="get" targetAction="prefPanelGroup"></hx:behavior>
<hx:behavior event="onclick" behaviorAction="show;stop" targetAction="preferenceSet"></hx:behavior>
</hx:commandExButton>
<hx:panelDialog id="preferenceSet" type="modal" styleClass="panelDialog" title="#{nls.preferenceDialogTitle}" >
<h:outputText styleClass="panelStartMessage" style="display:block;" value="#{nls.preferenceDialogWindowText}" />
<h:panelGroup id="prefPanelGroup" rendered="#{neoReport.hasSelectItem }" style="display:block;width:300px;height:360px;overflow:auto;" >
<hx:ajaxRefreshRequest id="refreshform" />
<h:selectManyCheckbox value="#{neoReport.selectedItems}" layout="pageDirection">
<f:selectItems value="#{neoReport.selectItems}" />
</h:selectManyCheckbox>
</h:panelGroup>
<hx:panelBox id="noCommandWindow" rendered="#{!neoReport.hasSelectItem }" style="display:block;width:300px;height:50px;" layout="lineDirection">
<h:outputText styleClass="outputText" id="cmdInfo" value="#{nls.noCommands}" />
</hx:panelBox>
<h:panelGroup id="buttonBox1" styleClass="panelStartBox" >
<hx:commandExButton id="submitPref" styleClass="commandExButton" type="submit" value="#{nls.submit}" action="#{neoReport.action}">
<hx:behavior event="onclick" behaviorAction="hide" targetAction="preferenceSet" id="behaviorSubmitPref" />
</hx:commandExButton>
<hx:commandExButton id="CancelPref" styleClass="commandExButton" type="submit" value="#{nls.cancel}" action="neoReport">
<hx:behavior event="onclick" behaviorAction="hide" targetAction="preferenceSet" id="behaviorCancelPref" />
</hx:commandExButton>
</h:panelGroup>
</hx:panelDialog>
</h:form>
该代码背后的基本思想是在页面上有一个按钮,当用户单击时,它应该从bean中获取最新数据(通过提取文件,该文件不断更新)并填充List对象databean,以便 h:selectManyCheckBox 可以呈现它。因此,我添加了 commandExButton 的行为,以便它将获取新数据,并且应该在 selectManyCheckBox 中呈现最新的选项。但是在这两个 hx: 行为中,只有第一个在工作,它调用 getter 函数,
<f:selectItems value="#{neoReport.selectItems}"
但不会进一步渲染 panelDialog。如果我删除“get”的行为,它将显示面板对话框,但不会显示更新的面板对话框数据。所以我无法找出我在这里到底做错了什么。任何人都可以帮忙吗?
I wrote the following code,
<h:form id="PrefForm" >
<hx:commandExButton id="preferenceButton" type="button" style="align:right;" value="#{nls.preferenceLink }" title="#{nls.preferenceLinkTitle}" >
<hx:behavior event="onclick" behaviorAction="get" targetAction="prefPanelGroup"></hx:behavior>
<hx:behavior event="onclick" behaviorAction="show;stop" targetAction="preferenceSet"></hx:behavior>
</hx:commandExButton>
<hx:panelDialog id="preferenceSet" type="modal" styleClass="panelDialog" title="#{nls.preferenceDialogTitle}" >
<h:outputText styleClass="panelStartMessage" style="display:block;" value="#{nls.preferenceDialogWindowText}" />
<h:panelGroup id="prefPanelGroup" rendered="#{neoReport.hasSelectItem }" style="display:block;width:300px;height:360px;overflow:auto;" >
<hx:ajaxRefreshRequest id="refreshform" />
<h:selectManyCheckbox value="#{neoReport.selectedItems}" layout="pageDirection">
<f:selectItems value="#{neoReport.selectItems}" />
</h:selectManyCheckbox>
</h:panelGroup>
<hx:panelBox id="noCommandWindow" rendered="#{!neoReport.hasSelectItem }" style="display:block;width:300px;height:50px;" layout="lineDirection">
<h:outputText styleClass="outputText" id="cmdInfo" value="#{nls.noCommands}" />
</hx:panelBox>
<h:panelGroup id="buttonBox1" styleClass="panelStartBox" >
<hx:commandExButton id="submitPref" styleClass="commandExButton" type="submit" value="#{nls.submit}" action="#{neoReport.action}">
<hx:behavior event="onclick" behaviorAction="hide" targetAction="preferenceSet" id="behaviorSubmitPref" />
</hx:commandExButton>
<hx:commandExButton id="CancelPref" styleClass="commandExButton" type="submit" value="#{nls.cancel}" action="neoReport">
<hx:behavior event="onclick" behaviorAction="hide" targetAction="preferenceSet" id="behaviorCancelPref" />
</hx:commandExButton>
</h:panelGroup>
</hx:panelDialog>
</h:form>
Basic idea behind this code is to have a button on the page,when user click,it should get the latest data from bean( by extracting a file,which is continuously getting updated) and fill the List object in databean,so that h:selectManyCheckBox can render that. So i added a behavior with the commandExButton,so that it will get the new data and it should render the latest options in selectManyCheckBox. BUT out of these two hx:behavior,only the first one is working,its calling the getter function of
<f:selectItems value="#{neoReport.selectItems}"
but its not rendering the panelDialog further.If i remove the behavior for "get" it will show the panel dialog but not with the updated data. So i am not able to find out,what exactly wrong i am doing here.Can anyone help?
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首先我不知道这是什么类型的标签库。您应该在标签和/或问题中指出。
您应该只有一个
标记,它可以为您完成所有工作。如果这样做,您应该有一个调用所有三个方法的方法。是否可以使用这些标签通过 AJAX 重新呈现多个组件 - 例如targetAction="prefPanelGroup,preferenceSet"
?据我所知,重新渲染
preferenceSet
也会导致prefPanelGroup
重新渲染,因此单独重新渲染是没有意义的。此外,重新渲染
prefPanelGroup
只能通过告诉
标记更精确的 ID 来实现,例如"PrefForm:prefPanelGroup"
。希望这有帮助,
丹尼尔
First of all I don't know what type of tag library is this. You should point it out in the tags and/or in the question.
You should have only one
<hx:behavior>
tag, which does all the job for you. If doing so, you should have a method that calls all three methods. Is it possible with these tags to rerender multiple components with AJAX - liketargetAction="prefPanelGroup, preferenceSet"
?As far as I know, rerendering
preferenceSet
will causeprefPanelGroup
to rerender too, so it's pointless to rerender separately.Also, rerendering
prefPanelGroup
will work only by telling the<hx:behavior>
tag a more precise id, like"PrefForm:prefPanelGroup"
.Hope this helps,
Daniel