问题描述
有没有办法告诉 JSF 在使用 时它不应该渲染
Is there a way to tell JSF that it should NOT render a <table> element when using <h:selectOneRadio>?
I don't use tables and it makes absolutely no sense in this case.
感谢任何帮助！
推荐答案
JSF 2.3 with group 属性
根据 JSF 规范问题 329 我添加了一个新的 组 属性到 这应该会使这一切变得不那么乏味.在父 UIForm 中具有相同 group 值的所有单选按钮组件将彼此分组.此外，如果选择项具有非空 label，它们将不会呈现除单选按钮本身和可选标签之外的任何标记.如果有，标签会直接出现在单选按钮之后.
JSF 2.3 with group attribute
As per JSF spec issue 329 I have added a new group attribute to <h:selectOneRadio> which should make this all much less tedious. All radio button components having the same group value within a parent UIForm will be grouped with each other. Also they won't render any markup besides the radio button itself and the optional label if the select item has a non-null label. If any, the label appears directly after the radio button.
<!-- Just markup them the way you want! -->
<ul>
<ui:repeat id="items" value="#{bean.items}" var="item">
<li>
<h:selectOneRadio group="foo" value="#{bean.selectedItem}">
<f:selectItem itemValue="#{item}" />
</h:selectOneRadio>
</li>
</ui:repeat>
</ul>
以下场景也是可能的.当多个组件具有相同的 group，并且 value 属性和/或 UISelectItem 子元素不存在时，那么它将引用第一个组的组成部分.
Following scenarios are also possible. When there are multiple components with same group, and the value attribute and/or UISelectItem child is absent, then it will reference those of the first component of the group.
<h:selectOneRadio group="foo" value="#{bean.selectedItem}">
<f:selectItems value="#{bean.availableItems}" />
</h:selectOneRadio>
<h:selectOneRadio group="foo" />
<h:selectOneRadio group="foo" />
<h:selectOneRadio group="foo" value="#{bean.selectedItem}">
<f:selectItem itemValue="one" />
<f:selectItem itemValue="two" />
<f:selectItem itemValue="three" />
</h:selectOneRadio>
<h:selectOneRadio group="foo" />
<h:selectOneRadio group="foo" />
<h:selectOneRadio group="foo" value="#{bean.selectedItem}">
<f:selectItem itemValue="one" />
</h:selectOneRadio>
<h:selectOneRadio group="foo">
<f:selectItem itemValue="two" />
</h:selectOneRadio>
<h:selectOneRadio group="foo">
<f:selectItem itemValue="three" />
</h:selectOneRadio>
<h:selectOneRadio group="foo" value="#{bean.selectedItem}">
<f:selectItem itemValue="one" />
</h:selectOneRadio>
<h:selectOneRadio group="foo" value="#{otherBean.selectedItem}">
<f:selectItem itemValue="two" />
</h:selectOneRadio>
<h:selectOneRadio group="foo" value="#{lastBean.selectedItem}">
<f:selectItem itemValue="three" />
</h:selectOneRadio>
它将按照 2.3.0-m07 在 Mojarra 中提供.
It will be available in Mojarra as per 2.3.0-m07.
如果您已经使用 JSF 2.2，请使用其新的 直通元素/属性 功能，您可以通过该功能将 name 属性显式设置为直通属性.为了在模型中设置提交的值，你只需要额外的.
If you're on JSF 2.2 already, make use of its new passthrough elements/attribtues feature whereby you explicitly set the name attribute as a passthrough attribute. In order to set the submitted value in the model, you only need an additional <h:inputHidden>.
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:jsf="http://xmlns.jcp.org/jsf"
xmlns:ui="http://xmlns.jcp.org/jsf/facelets"
xmlns:a="http://xmlns.jcp.org/jsf/passthrough">
...
<!-- Just markup them the way you want! -->
<ul>
<ui:repeat id="items" value="#{bean.items}" var="item">
<li>
<input type="radio" jsf:id="item" a:name="#{hiddenItem.clientId}"
value="#{item}" a:checked="#{item eq bean.selectedItem ? 'checked' : null}" />
<h:outputLabel for="item" value="#{item}" />
</li>
</ui:repeat>
</ul>
<!-- This one won't display anything. -->
<h:inputHidden id="selectedItem" binding="#{hiddenItem}" value="#{bean.selectedItem}"
rendered="#{facesContext.currentPhaseId.ordinal ne 6}" />
可以在此博客中找到深入的技术解释:在 JSF 2.2 中使用 h:selectOneRadio 自定义布局.
In depth technical explanation can be found in this blog: Custom layout with h:selectOneRadio in JSF 2.2.
如果您碰巧使用了 PrimeFaces，那么您也可以使用 与 .
If you happen to use PrimeFaces, then you can also use <p:selectOneRadio layout="custom"> with <p:radioButton>.
<html ... xmlns:p="http://primefaces.org/ui">
<!-- This one won't display anything. -->
<p:selectOneRadio id="foo" value="#{bean.selectedFoo}" layout="custom">
<f:selectItems value="#{bean.availableFoos}" />
</p:selectOneRadio>
<!-- Just markup them the way you want! -->
<ul>
<li><p:radioButton for="foo" itemIndex="0" /></li>
<li><p:radioButton for="foo" itemIndex="1" /></li>
<li><p:radioButton for="foo" itemIndex="2" /></li>
</ul>
你也可以遍历可用的items，你只需要在查看构建时间:
You can also loop over the available items, you only need to do it during view build time:
<ul>
<c:forEach items="#{bean.availableFoos}" varStatus="loop">
<li><p:radioButton for="foo" itemIndex="#{loop.index}" /></li>
</c:forEach>
</ul>
战斧(JSF 1.x 或 2.x)
如果您还没有使用 JSF 2.2 或者您不喜欢 PrimeFaces UI，请获取 战斧的 ; 呈现与 相同的纯 HTML 输出，但支持 layout="spread" 属性，以便您可以通过 你想要的方式.
Tomahawk (JSF 1.x or 2.x)
If you're not on JSF 2.2 yet or if you don't like PrimeFaces UI, grab Tomahawk's <t:selectOneRadio> which renders the same plain HTML output as <h:selectOneRadio>, but supports a layout="spread" attribute so that you can position the items by <t:radio> the way you want.
例如
<html ... xmlns:t="http://myfaces.apache.org/tomahawk">
<!-- This one won't display anything. -->
<t:selectOneRadio id="foo" value="#{bean.selectedFoo}" layout="spread">
<f:selectItems value="#{bean.availableFoos}" />
</t:selectOneRadio>
<!-- Just markup them the way you want! -->
<ul>
<li><t:radio for="foo" index="0" /></li>
<li><t:radio for="foo" index="1" /></li>
<li><t:radio for="foo" index="2" /></li>
</ul>
自定义渲染器
提供自定义Renderer.这只是一点工作.从下面显示的第一个另请参阅"链接开始:
Custom Renderer
Supply a custom Renderer. It's only a bit of work. Start at the first "See also" link shown below:
- 如何覆盖 h:selectOneRadio 渲染器?jsf-impl中的renderer类在哪里?
- 是可以使用 JSF 在不使用表格的情况下构建干净的 CSS 布局吗?
- 在没有 HTML 表格的情况下渲染 selectManyCheckbox
这篇关于<h:selectOneRadio>呈现表格元素，如何避免这种情况?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，WP2
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