Primefaces-如何从另一个表单更新动态.xhtml表单

Question

我想单击取消请求的链接时，包含带有commandLink的表单的表单会动态更新（因为此记录在此表单中不再可见）。 这是我的代码：

<h:form id = "form">
        <p:dataGrid id = "dataGrid" value="#{userRequestBean.userActiveRequests}" columns="1"
            var="userActiveRequest" selection="#{userRequestBean.request}"
            rowKey="#{userActiveRequest.id}">
            <f:facet name="header">
            My requests
        </f:facet>

            <h:panelGrid id="panelGrid">
                <h:outputText value="#{userActiveRequest.title.toUpperCase()}" />
                <h:outputText value="#{userActiveRequest.description}" />

                <h:form rendered="#{not empty userActiveRequest.hiredAgency}">
                    <h:commandLink
                        value="Details for agency #{userActiveRequest.hiredAgency.tUser.name}"
                        action="agencyDetail?faces-redirect=true">
                        <f:setPropertyActionListener target="#{agencyBean.tAgency}"
                            value="${userActiveRequest.hiredAgency}" />
                    </h:commandLink>
                </h:form>
**//HERE IS THE COMMANDLINK WHICH I MENTIONED**
                <h:form rendered="#{empty userActiveRequest.hiredAgency}">
                    To cancel, click <p:commandLink
                        value="HERE" action="#{userRequestBean.cancelRequest()}"
                        update = "form:dataGrid:panelGrid">
                        <f:setPropertyActionListener target="#{userRequestBean.request}"
                            value="${userActiveRequest}" />
                    </p:commandLink>
                </h:form>

                <p:commandButton value="Details"
                    action="userRequestDetails?faces-redirect=true">
                    <f:setPropertyActionListener target="#{userRequestBean.request}"
                        value="${userActiveRequest}" />
                </p:commandButton>
            </h:panelGrid>
        </p:dataGrid>
    </h:form>

添加： Java类的一部分：

private List<TRequest> userActiveRequests; // + get and set methods

    public UserRequestBean(){
        EntityManager em = HibernateUtil.getEntityManager();
        Query query = em.createQuery("select r " +
                "from TUser u join u.userRequests r where u.id = :userId and r.isActive = 'Y'");
        query.setParameter("userId", Long.valueOf(11));
        userActiveRequests = query.getResultList();
    }

    public void cancelRequest (){
        EntityManager em = HibernateUtil.getEntityManager();
        em.getTransaction().begin();
        request.setIsCancelled(true);
        request.setIsActive(false);
        em.merge(request);
        em.getTransaction().commit();
        //remove the object from the List
        userActiveRequests.remove(request);
    }

Answer 1

正如Luiggi所说-嵌套表格无效。

在SO上参考此内容： 您可以嵌套html表单吗？ 看一下您的设计，看看您是否真的需要嵌套该内部表单，或者可以只使用部分Ajax更新来满足您的需求。