我不能让＆LT; H：selectoneListbox＆GT; 停止一旦出现渲染。该渲染属性工作正常视图第一次出现的时候，却会被忽略后，我点击列表和监听器调用。

任何想法？

下面是一个facelet：

 ＆LT; H：panelGroup中＆GT;
    ＆LT; H：inputText的ID =TitleText值=＃{bindingScheduleHandler.title}/＆GT;
    ＆LT; H：的commandButton值=客户的ActionListener =＃bindingScheduleHandler.clientList}/＆GT;

    ＆LT; H：selectOneListbox ID =列表框值=＃{bindingScheduleHandler.clients}大小=5
        渲染=＃{bindingScheduleHandler.showClients}＆GT;
        ＆LT; F：selectItems的值=＃{bindingScheduleHandler.clientLabelsValues​​}/＆GT;
        ＆LT; F：Ajax事件=点击监听器=＃{bindingScheduleHandler.clickListener}
            渲染=TitleText/＆GT;
    ＆LT; / H：selectOneListbox＆GT;
＆LT; /小时：panelGroup中＆GT;
 

下面是支持bean：

 公共无效clickListener（AjaxBehaviorEvent事件）{
    this.title =客户;
    showClients = FALSE;
    renderClientList = FALSE;
}
 

解决方案

在＆LT; F：AJAX渲染＆GT; ，你不能参考这是有条件地渲染组件由JSF。相反，你需要参考父组件是总是渲染。最简单的解释是，＆LT; F：AJAX＆GT; 是使用JavaScript来更新由JSF psented的HTML元素的重新$ P $的内容（节点值）零件。这是不可能的显示/隐藏在HTML元素本身。

只需更新父组件代替。

 ＆LT; H：panelGroup中的id =组＆GT;
    ＆LT; H：inputText的ID =TitleText值=＃{bindingScheduleHandler.title}/＆GT;
    ＆LT; H：的commandButton值=客户的ActionListener =＃bindingScheduleHandler.clientList}/＆GT;

    ＆LT; H：selectOneListbox ID =列表框值=＃{bindingScheduleHandler.clients}大小=5
        渲染=＃{bindingScheduleHandler.showClients}＆GT;
        ＆LT; F：selectItems的值=＃{bindingScheduleHandler.clientLabelsValues​​}/＆GT;
        ＆LT; F：Ajax事件=点击监听器=＃{bindingScheduleHandler.clickListener}
            渲染=组/＆GT;
    ＆LT; / H：selectOneListbox＆GT;
＆LT; /小时：panelGroup中＆GT;
 

这会顺便也立即修复不显示所选项目的问题＆LT; H：inputText的＆GT; ：）

I have a <h:selectOneListbox> that appears when a <h:commandbutton> is clicked. When the user selects from the listbox I want the selected value to appear in a <h:inputText> and hide the listbox.

I can't make the <h:selectoneListbox> stop rendering once it appears. The rendered attribute works fine when the view first appears, but is ignored after I click the list and the listener is invoked.

Any ideas?

Here is the Facelet:

<h:panelGroup>
    <h:inputText id="TitleText" value="#{bindingScheduleHandler.title}"/>
    <h:commandButton value="Clients" actionListener= #bindingScheduleHandler.clientList}" />

    <h:selectOneListbox id="listBox" value="#{bindingScheduleHandler.clients}" size="5"  
        rendered="#{bindingScheduleHandler.showClients}">
        <f:selectItems value="#{bindingScheduleHandler.clientLabelsValues}" />
        <f:ajax event="click" listener="#{bindingScheduleHandler.clickListener}"  
            render="TitleText" />
    </h:selectOneListbox>
</h:panelGroup>

Here is the backing bean:

public void clickListener(AjaxBehaviorEvent event) {
    this.title = clients;
    showClients = false;
    renderClientList = false;
}

In the <f:ajax render>, you can't refer components which are conditionally rendered by JSF. Instead, you need to refer a parent component which is always rendered. The simple explanation is that the <f:ajax> is using JavaScript to update the content (the node value) of the HTML element as represented by the JSF component. It isn't possible to show/hide the HTML element itself.

Just update a parent component instead.

<h:panelGroup id="group">
    <h:inputText id="TitleText" value="#{bindingScheduleHandler.title}"/>
    <h:commandButton value="Clients" actionListener= #bindingScheduleHandler.clientList}" />

    <h:selectOneListbox id="listBox" value="#{bindingScheduleHandler.clients}" size="5"  
        rendered="#{bindingScheduleHandler.showClients}">
        <f:selectItems value="#{bindingScheduleHandler.clientLabelsValues}" />
        <f:ajax event="click" listener="#{bindingScheduleHandler.clickListener}"  
            render="group" />
    </h:selectOneListbox>
</h:panelGroup>

This will by the way also instantly fix the problem of the selected item not being displayed in the <h:inputText> :)