java <f:ajax> 无法将 <f:ajax> 附加到非 ClientBehaviorHolder 父级
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<f:ajax> Unable to attach <f:ajax> to non-ClientBehaviorHolder parent
提问by curiousgeorge
I receive the following error when running my application:
运行我的应用程序时收到以下错误：
<f:ajax> Unable to attach <f:ajax> to non-ClientBehaviorHolder parent
My JSF:
我的JSF：
<h:commandButton id="submitschool" action="submit" value="Get templates" style="FONT-SIZE: medium;FONT-FAMILY: 'Rockwell';width : 128px; height : 24px;">
<ui:repeat value="#{person.theImage}" var="item">
<f:ajax event="change" render="image" />
<h:graphicImage id="image" value="#{item}"/>
</ui:repeat>
</h:commandButton>
I'm trying to return back elements in an array to the view, where "theImage" is an array in person class.
我正在尝试将数组中的元素返回给视图，其中“theImage”是个人类中的数组。
回答by BalusC
The <f:ajax>tag can only be directly nested in an UIComponentwhich implements the ClientBehaviorHolderinterface. The <ui:repeat>isn't one of them.
该<f:ajax>标签只能直接嵌套在UIComponent它实现了ClientBehaviorHolder接口。该<ui:repeat>是不是其中之一。
Click the javadoc link, it tells the following:
单击 javadoc 链接，它告诉以下内容：
All Known Implementing Classes:
HtmlBody, HtmlCommandButton, HtmlCommandLink, HtmlDataTable, HtmlForm, HtmlGraphicImage, HtmlInputSecret, HtmlInputText, HtmlInputTextarea, HtmlOutcomeTargetButton, HtmlOutcomeTargetLink, HtmlOutputLabel, HtmlOutputLink, HtmlPanelGrid, HtmlSelectBooleanCheckbox, HtmlSelectManyCheckbox, HtmlSelectManyListbox, HtmlSelectManyMenu, HtmlSelectOneListbox, HtmlSelectOneMenu, HtmlSelectOneRadio
所有已知的实现类：
HtmlBody，HtmlCommandButton，HtmlCommandLink，HtmlDataTable，HtmlForm控件，HtmlGraphicImage，HtmlInputSecret，的HtmlInputText，HtmlInputTextarea，HtmlOutcomeTargetButton，HtmlOutcomeTargetLink，HtmlOutputLabel，HtmlOutputLink，HtmlPanelGrid，HtmlSelectBooleanCheckbox，HtmlSelectManyCheckbox，HtmlSelectManyListbox，HtmlSelectManyMenu，HtmlSelectOneListbox，HtmlSelectOneMenu，HtmlSelectOneRadio
It's not clear from your question what your intent is, so I can't give a more specific answer than recommending to get rid of the <f:ajax>in this context. It doesn't belong there. Maybe you meant to put it directly inside the <h:commandButton>(which is of type HtmlCommandButton), but then you need to change the changeevent since it wouldn't make sense on a <input type="submit">generated by the <h:commandButton>.
从你的问题中不清楚你的意图是什么，所以我不能给出比建议<f:ajax>在这种情况下摆脱 更具体的答案。它不属于那里。也许你的意思是把它直接在里面<h:commandButton>（这是类型HtmlCommandButton），但你需要改变change的事件，因为它不会对任何意义<input type="submit">的生成的<h:commandButton>。
I think you would also like to move the <ui:repeat>out of the <h:commandButton>since that does also not make much sense. Put it next to the <h:commandButton>instead of nesting inside it.
我认为您也想将<ui:repeat>移出 ，<h:commandButton>因为这也没有多大意义。把它放在旁边<h:commandButton>而不是嵌套在里面。
