错误丰富:panelMenu示例展示无法呈现

问题描述

我无法在Richfaces 4.3.0中复制该示例.最终展示: http://showcase.richfaces.org/richfaces/component -sample.jsf?demo = panelMenu& skin = blueSky 特别是在rich:panelMenu组件中，当我运行代码时，panelMenu不响应，并且panelMenuItem不显示，我更改了这样的代码:

Hi i can't replicate the example in the richfaces 4.3.0.Final showcase: http://showcase.richfaces.org/richfaces/component-sample.jsf?demo=panelMenu&skin=blueSkySpecifically in the rich:panelMenu component, when i run the code the panelMenu doesn't responde,and the panelMenuItem doesn't show, I change the code like this:

<rich:panelMenu style="width:200px" itemMode="ajax" groupMode="ajax">

到

<rich:panelMenu style="width:200px" mode="ajax">

和panelMenuItems显示并正常工作，但是此部分不起作用:

and the panelMenuItems show and working, but this part doesn't work:

<a4j:outputPanel ajaxRendered="true">
      <rich:panel rendered="#{not empty panelMenuBean.current}">
                <h:outputText value="#{panelMenuBean.current} selected" id="current" />
      </rich:panel>
 </a4j:outputPanel>

为什么? tnks.

推荐答案

我刚刚使用了展示柜中完全相同的代码进行了测试(我只是复制了整个h:form)，并且一切正常.

I've just tested with the exact same code from the showcase (I simply copied the whole h:form), and it worked alright.

您只需要使用current字符串属性和updateCurrent侦听器方法创建一个名为PanelMenuBean的支持bean(根据itemChangeListener的ItemChangeEvent: //docs.jboss.org/richfaces/latest_4_X/vdldoc/rich/panelMenu.html"rel =" nofollow> panelMenu的VDL文档):

You just have to create a backing bean called PanelMenuBean with the current String property and the updateCurrent listener method (receiving an ItemChangeEvent for the itemChangeListener attribute, according to the VDL docs for panelMenu):

@ManagedBean
public class PanelMenuBean {

    private String current;

    public void updateCurrent(ItemChangeEvent evt) {
        current = evt.getNewItemName();
    }

    // getter and setter ...
}

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