Question

我使用的是primefaces 6.1并在ui：repeat中通过命令按钮创建面板，但是当我将面板属性closable =“ true”与ajax event =“ close”一起使用时，它不会触发所有的getter和setter方法，如果我尝试删除一个创建的面板，当我在创建后备Bean时创建该面板时，该面板不会再次显示，但无法在UI上呈现，倒数第二个面板的相同情况删除了所有创建的分屏器，并且在创建新面板后不恢复显示。

这是xhtml代码：

<p:outputPanel binding="#{chatbotNewsAlertBean.pullMessagesPanel}"
    id="pullMessagesPanel">
    <ui:repeat value="#{chatbotNewsAlertBean.pullMessages}"
        var="pullMessage" varStatus="status">
        <p:panel id="pullMessage" toggleable="true" closable="true"
            collapsed="true" visible="true"
            header="Pull Message #{status.index+1}">

            <p:ajax event="close"
                listener="#{chatbotNewsAlertBean.onClose(status.index)}" />
        </p:panel>
    </ui:repeat>
</p:outputPanel>
<p:column style="text-align: right;">
    <p:commandButton id="addNewPullMessageButton" value="Add Pull Message"
        action="#{chatbotNewsAlertBean.initializeNumberOfForms()}"
        update="pullMessagesPanel nextButtonText buttonPosition" />
</p:column>

我的后端bean是：

@ManagedBean(name = "chatbotNewsAlertBean")
@Persistent
@ViewScoped
public class ChatbotNewsAlertManagedBean extends ChatbotNewsAlertBean
{public void initializeSubsurveysList()
    {
        if (this.getNumberOfPullMessages() == null)
        {
            this.setNumberOfPullMessages(0);
        }

        numberOfPullMessages = numberOfPullMessages + 1;
        pullMessages.add(new PullMessagesManagedBean());
        log.info("PULL MESSAGES SIZE:" + pullMessages.size());
    }

    /**
     * thi method will delete single entry from the list of pul messages
     * 
     * @param index
     *            of the selected pull message to be deleted
     */
    public void onClose(int index)
    {
        pullMessages.remove(index);
        numberOfPullMessages = numberOfPullMessages - 1;
        log.info("PULL MESSAGES SIZE:" + pullMessages.size() + " DELETING INDEX VLUE AT:" + index);
        log.info("PULL MESSAGES SIZE:" + pullMessages.size());
    }
}

我不知道为什么这个Ajax调用会导致close事件产生问题。

使用面板可关闭属性删除JSF Primefaces

0 个答案: