选项卡中的 PrimeFaces 按钮无法导航

发布于 2024-10-14 14:56:53 字数 8503 浏览 4 评论 0原文

我正在使用 JSF 2.0、NetBeans 6.9.1、GlassFish 3.1、Mojarra 2.0.3 和 PrimeFaces 2.2-RC2 开发此项目。

我的问题类似于这个问题,但即使我能够我的一个按钮起作用,另一个则不起作用。这是我的情况:我有一个数据表,其中有一列包含两个链接,一个用于编辑行数据,一个用于查看行数据。单击“编辑”或“查看”链接会将您带到一个详细信息页面,其中 组件内有 组件。我的详细信息页面有两个 组件,一个用于编辑,一个仅用于查看数据。您看到哪一个取决于 语句。页面上第一个 中的按钮(我的意思是首先从顶部向下操作)按我希望的方式工作,这恰好是“编辑“ 成分。另一个 中的按钮不起作用。我设置了断点并通过了调试器,无论我尝试什么,第二个按钮似乎都不会触发 ActionEvent。这是我的页面代码:

            <ui:define name="metadata">
                <f:metadata>
                    <f:viewParam name="id" value="#{userDetailBean.selectedUserId}" />
                    <f:viewParam name="action" value="#{userDetailBean.view}" />
                </f:metadata>


            </ui:define>


            <ui:define name="main_base_content_top">
                <h:form>
                    <p:toolbar>
                        <p:toolbarGroup align="left">
                            <h:commandButton value="Return to User List" action="user_grid" />
                        </p:toolbarGroup>
                    </p:toolbar>
                </h:form>
            </ui:define>

            <ui:define name="main_base_content">

                    <c:if test="#{empty userDetailBean.view}">
                        <h:form>
                        <table align="center">
                            <tr>
                                <td>
                                    <p:tabView>
                                        <p:tab title="#{msgs.UserDetailTabTitle}">
                                            <h:panelGrid columns="4">
                                                <h:outputLabel value="#{msgs.UserDetailFirstName}" for="fname" />
                                                <h:inputText id="fname" value="#{userDetailBean.firstName}" />
                                                <h:outputLabel value="#{msgs.UserDetailJobTitle}" for="jtitle" />
                                                <h:inputText id="jtitle" value="#{userDetailBean.jobTitle}" />
                                                <h:outputLabel value="#{msgs.UserDetailLastName}" for="lname" />
                                                <h:inputText id="lname" value="#{userDetailBean.lastName}" />
                                                <h:outputLabel value="#{msgs.UserDetailEmployeeId}" for="empid" />
                                                <h:inputText id="empid" value="#{userDetailBean.id}" />
                                                <h:outputLabel value="#{msgs.UserDetailDateOfHire}" for="doh" />
                                                <h:inputText id="doh" value="#{userDetailBean.DOH}" />
                                                <h:outputLabel value="#{msgs.UserDetailLocation}" for="location" />
                                                <h:inputText id="location" value="#{userDetailBean.location}" />
                                                <h:outputLabel value="#{msgs.UserDetailStatus}" for="status" />
                                                <h:inputText id="status" value="#{userDetailBean.status}" />
                                                <h:inputHidden /> <h:inputHidden /> <h:inputHidden /> <h:inputHidden /> <h:inputHidden />
                                                &nbsp;
                                                <h:outputLabel value="#{msgs.UserDetailComments}" for="comments" />
                                                <h:inputTextarea id="comments" value="#{userDetailBean.comments}" />
                                                <h:inputHidden />
                                                <p:commandButton ajax="false" action="#{userDetailBean.submitChanges()}" value="Submit Changes" />
                                            </h:panelGrid>
                                        </p:tab>
                                    </p:tabView>
                                </td>
                            </tr>

                        </table>
                        </h:form>
                    </c:if>
                    <c:if test="#{! empty userDetailBean.view}">
                        <h:form>
                        <table align="center">
                            <tr>
                                <td>
                                    <p:tabView>
                                        <p:tab title="#{msgs.UserDetailViewTabTitle}">
                                            <h:panelGrid columns="4">
                                                <h:outputLabel value="#{msgs.UserDetailFirstName}" for="fname" />
                                                <h:outputText id="fname" value="#{userGridBean.selectedUser.firstName}" />
                                                <h:outputLabel value="#{msgs.UserDetailJobTitle}" for="jtitle" />
                                                <h:outputText id="jtitle" value="#{userGridBean.selectedUser.jobTitle}" />
                                                <h:outputLabel value="#{msgs.UserDetailLastName}" for="lname" />
                                                <h:outputText id="lname" value="#{userGridBean.selectedUser.lastName}" />
                                                <h:outputLabel value="#{msgs.UserDetailEmployeeId}" for="empid" />
                                                <h:outputText id="empid" value="#{userGridBean.selectedUser.id}" />
                                                <h:outputLabel value="#{msgs.UserDetailDateOfHire}" for="doh" />
                                                <h:outputText id="doh" value="#{userGridBean.selectedUser.DOH}" />
                                                <h:outputLabel value="#{msgs.UserDetailLocation}" for="location" />
                                                <h:outputText id="location" value="#{userGridBean.selectedUser.location}" />
                                                <h:outputLabel value="#{msgs.UserDetailStatus}" for="status" />
                                                <h:outputText id="status" value="#{userGridBean.selectedUser.status}" />
                                                <h:inputHidden /> <h:inputHidden /> <h:inputHidden /> <h:inputHidden /> <h:inputHidden />
                                                &nbsp;
                                                <h:outputLabel value="#{msgs.UserDetailComments}" for="comments" />
                                                <h:outputText id="comments" value="#{userGridBean.selectedUser.comments}" />
                                                <h:inputHidden /> <h:inputHidden /> <h:inputHidden />
                                                <p:commandButton onclick="submit()" ajax="false" action="#{userDetailBean.navigation()}" value="Retur to User Grid" />
                                            </h:panelGrid>
                                        </p:tab>
                                    </p:tabView>
                                </td>
                            </tr>
                        </table>
                        </h:form>
                    </c:if>                 

            </ui:define>
        </ui:composition>        
    </body>

我已经尝试了我能想到的第二个按钮的所有方法: ajax="false"; onclick="提交()"; ajax=“假”onclick=“提交”;我尝试过使用重定向的隐式导航以及使用重定向的导航规则。操作方法 userDetailBean.submitChanges() 和 userDetailBean.navigate() 都返回相同的字符串,该字符串对应于我的 faces-config 文件中的导航规则。 SubmitChanges 方法被调用,但我的导航方法没有被调用。此时我不会在字段中填充任何数据,我只是想让基本导航正常工作。为什么我的第二个 tabView 上的 commandButton 不起作用?

I'm developing this project using JSF 2.0, NetBeans 6.9.1, GlassFish 3.1, Mojarra 2.0.3, and PrimeFaces 2.2-RC2.

My question is similar to this question, but even though I was able to make one of my buttons work, the other one does not. Here's my situation: I have a dataTable with a column containing two links, one to edit line data, one to view line data. Clicking either the "Edit" or "View" link takes you to a detail page with <h:panelGrid> components inside <p:tabView> components. My detail page has two <p:tabView> components, one for editing, one for just viewing data. Which one you see depends on the <c:if> statements. The button in the first <p:tabView> on the page (by that I mean first working your way down from the top) works as I would like it to, this happens to be the "Edit" component. The button in the other <p:tabView> does not work. I set up break points and went through the debugger, the second button doesn't seem to fire an ActionEvent regardless of what I try. Here's my code for the page:

            <ui:define name="metadata">
                <f:metadata>
                    <f:viewParam name="id" value="#{userDetailBean.selectedUserId}" />
                    <f:viewParam name="action" value="#{userDetailBean.view}" />
                </f:metadata>


            </ui:define>


            <ui:define name="main_base_content_top">
                <h:form>
                    <p:toolbar>
                        <p:toolbarGroup align="left">
                            <h:commandButton value="Return to User List" action="user_grid" />
                        </p:toolbarGroup>
                    </p:toolbar>
                </h:form>
            </ui:define>

            <ui:define name="main_base_content">

                    <c:if test="#{empty userDetailBean.view}">
                        <h:form>
                        <table align="center">
                            <tr>
                                <td>
                                    <p:tabView>
                                        <p:tab title="#{msgs.UserDetailTabTitle}">
                                            <h:panelGrid columns="4">
                                                <h:outputLabel value="#{msgs.UserDetailFirstName}" for="fname" />
                                                <h:inputText id="fname" value="#{userDetailBean.firstName}" />
                                                <h:outputLabel value="#{msgs.UserDetailJobTitle}" for="jtitle" />
                                                <h:inputText id="jtitle" value="#{userDetailBean.jobTitle}" />
                                                <h:outputLabel value="#{msgs.UserDetailLastName}" for="lname" />
                                                <h:inputText id="lname" value="#{userDetailBean.lastName}" />
                                                <h:outputLabel value="#{msgs.UserDetailEmployeeId}" for="empid" />
                                                <h:inputText id="empid" value="#{userDetailBean.id}" />
                                                <h:outputLabel value="#{msgs.UserDetailDateOfHire}" for="doh" />
                                                <h:inputText id="doh" value="#{userDetailBean.DOH}" />
                                                <h:outputLabel value="#{msgs.UserDetailLocation}" for="location" />
                                                <h:inputText id="location" value="#{userDetailBean.location}" />
                                                <h:outputLabel value="#{msgs.UserDetailStatus}" for="status" />
                                                <h:inputText id="status" value="#{userDetailBean.status}" />
                                                <h:inputHidden /> <h:inputHidden /> <h:inputHidden /> <h:inputHidden /> <h:inputHidden />
                                                 
                                                <h:outputLabel value="#{msgs.UserDetailComments}" for="comments" />
                                                <h:inputTextarea id="comments" value="#{userDetailBean.comments}" />
                                                <h:inputHidden />
                                                <p:commandButton ajax="false" action="#{userDetailBean.submitChanges()}" value="Submit Changes" />
                                            </h:panelGrid>
                                        </p:tab>
                                    </p:tabView>
                                </td>
                            </tr>

                        </table>
                        </h:form>
                    </c:if>
                    <c:if test="#{! empty userDetailBean.view}">
                        <h:form>
                        <table align="center">
                            <tr>
                                <td>
                                    <p:tabView>
                                        <p:tab title="#{msgs.UserDetailViewTabTitle}">
                                            <h:panelGrid columns="4">
                                                <h:outputLabel value="#{msgs.UserDetailFirstName}" for="fname" />
                                                <h:outputText id="fname" value="#{userGridBean.selectedUser.firstName}" />
                                                <h:outputLabel value="#{msgs.UserDetailJobTitle}" for="jtitle" />
                                                <h:outputText id="jtitle" value="#{userGridBean.selectedUser.jobTitle}" />
                                                <h:outputLabel value="#{msgs.UserDetailLastName}" for="lname" />
                                                <h:outputText id="lname" value="#{userGridBean.selectedUser.lastName}" />
                                                <h:outputLabel value="#{msgs.UserDetailEmployeeId}" for="empid" />
                                                <h:outputText id="empid" value="#{userGridBean.selectedUser.id}" />
                                                <h:outputLabel value="#{msgs.UserDetailDateOfHire}" for="doh" />
                                                <h:outputText id="doh" value="#{userGridBean.selectedUser.DOH}" />
                                                <h:outputLabel value="#{msgs.UserDetailLocation}" for="location" />
                                                <h:outputText id="location" value="#{userGridBean.selectedUser.location}" />
                                                <h:outputLabel value="#{msgs.UserDetailStatus}" for="status" />
                                                <h:outputText id="status" value="#{userGridBean.selectedUser.status}" />
                                                <h:inputHidden /> <h:inputHidden /> <h:inputHidden /> <h:inputHidden /> <h:inputHidden />
                                                 
                                                <h:outputLabel value="#{msgs.UserDetailComments}" for="comments" />
                                                <h:outputText id="comments" value="#{userGridBean.selectedUser.comments}" />
                                                <h:inputHidden /> <h:inputHidden /> <h:inputHidden />
                                                <p:commandButton onclick="submit()" ajax="false" action="#{userDetailBean.navigation()}" value="Retur to User Grid" />
                                            </h:panelGrid>
                                        </p:tab>
                                    </p:tabView>
                                </td>
                            </tr>
                        </table>
                        </h:form>
                    </c:if>                 

            </ui:define>
        </ui:composition>        
    </body>

I've tried everything I can think of for the second button: ajax="false"; onclick="submit()"; ajax="false" onclick="submit"; I've tried implicit navigation with a redirect as well as a navigation rule with a redirect. The action methods userDetailBean.submitChanges() and userDetailBean.navigate() both return the same string, which corresponds to a navigation rule in my faces-config file. The submitChanges method gets called, but my navigate method does not. I'm not filling the fields with any data at this point, I'm just trying to get the basic navigation to work. Why isn't my commandButton on the second tabView working?

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落墨 2024-10-21 14:56:53

未调用命令按钮的另一个原因是按钮或其父级之一的 rendered 属性在表单提交的应用请求值阶段评估为 false

实际上没有,但是这些 标记仅在视图构建时间而不是视图渲染时间期间执行类似的操作。视图参数不会在构建视图期间应用,而仅在构建视图之后应用。这正是 #{userDetailBean.view} 始终为空的原因。

我从未在 中使用过这样的构造,但我也有过类似的视图,其中这一切都只适用于 @ViewScoped bean,其中渲染属性应用于完整的 JSF 组件,而不是

第一步,删除 并将其测试移至 rendered 属性中他们正在包装:

<h:form rendered="#{empty userDetailBean.view}">
    ...
</h:form>
<h:form rendered="#{not empty userDetailBean.view}">
    ...
</h:form>

如果徒劳(我猜这会失败,因为您没有使用ajax并且未保留viewparams)并且bean确实是@RequestScoped,那么您需要标记它@ViewScoped 保留渲染条件。

相关问题:


与问题无关,我宁愿使用 而不是 来“填充”空单元格桌子。它们的编码和解码成本更低,而且 HTML 效果更好。

Another reason that a commandbutton isn't been invoked is that the rendered attribute of the button or one of its parents evaluated false during apply request values phase of the form submit.

You have actually none, but those <c:if> tags does similar thing, only during view build time instead of view render time. The view params are not applied during building the view, but only thereafter. That's exactly why #{userDetailBean.view} is always empty.

I have never used such a construct with <c:if>, but I've had similar views like this where this all just works with a @ViewScoped bean where the rendering property is been applied on a fullworthy JSF component instead of <c:if>.

As first step, get rid of <c:if>s and move their tests into rendered attribute of the <h:form>s they are wrapping:

<h:form rendered="#{empty userDetailBean.view}">
    ...
</h:form>
<h:form rendered="#{not empty userDetailBean.view}">
    ...
</h:form>

If in vain (I guess that this will fail because you aren't using ajax and the viewparams are not preserved) and the bean is indeed @RequestScoped, then you need to mark it @ViewScoped to preserve the rendering conditions.

Related questions:


Unrelated to the problem, I'd rather use <h:panelGroup /> instead of <h:inputHidden /> to "fill" the empty cells of the table. They are cheaper to encode and decode and also ends in better HTML.

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