< H：selectOneRadio>渲染表元素，如何避免这种情况？ [英] <h:selectOneRadio> renders table element, how to avoid this?
问题描述
有没有办法告诉JSF在使用< h：selectOneRadio> < table> 元素code>？
我不使用表，在这种情况下它完全没有意义。
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.
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推荐答案
JSF 2.3，组属性
按照 JSF规范问题329 我添加了一个新的组属性为< h：selectOneRadio> 这应该使这一切变得更加乏味。在父 UIForm 中具有相同组值的所有单选按钮组件将相互分组。如果select项具有非null 标签，除了单选按钮本身和可选标签之外，它们也不会呈现任何标记。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>
以下情况也是可能的。如果有多个组件具有相同的组，并且值属性和/或 UISelectItem 孩子缺席，然后它将引用该组的第一个组成部分。
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.
如果您已使用JSF 2.2，请使用其新的 passthrough elements / attribtues 功能，您可以明确设置名称属性为passthrough属性。要在模型中设置提交的值，您只需要额外的< h：inputHidden> 。
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}" />
深入的技术说明可以在这个博客中找到：自定义布局，其中h：selectOneRadio在JSF 2.2中。
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 PrimeFaces ，那么你也可以使用 < p：selectOneRadio layout =custom> ，< p：radioButton> 。
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>
您还可以遍历可用的项目，只需在查看构建时间：
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>
Tomahawk（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，请抓住 Tomahawk's < t：selectOneRadio> ，它提供与< h：selectOneRadio> 相同的纯HTML输出，但支持 layout =spread属性，以便您可以通过 < t：radio> 您想要的方式。
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< a href =http://docs.oracle.com/javaee/7/api/javax/faces/render/Renderer.html =nofollow noreferrer> Renderer 。这只是一点工作。从下面显示的第一个另请参见链接开始：
Custom Renderer
Supply a custom Renderer. It's only a bit of work. Start at the first "See also" link shown below:
- How to override h:selectOneRadio renderer? Where is the renderer class in jsf-impl?
- Is it possible to use JSF to build clean CSS layouts without using tables?
- Render selectManyCheckbox without HTML table
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