H：selectManyChexkbox`s

Question

I want to fire an event change listener when the user selects / deselects something in the h:selectManyCheckbox, if it leaves it alone nothing should happen. 当用户在h：selectManyCheckbox中选择/取消选择某项时，我想触发一个事件更改侦听器，如果不理会它，则不会发生任何事情。

My xhtml: 我的xhtml：

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" 
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html lang="en" xmlns="http://www.w3.org/1999/xhtml"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:c="http://java.sun.com/jsp/jstl/core">

<h:head>
<link rel="stylesheet" type="text/css"
    href="/juritest/resources/css/style.css" />
<script type="text/javascript"
    src="/juritest/resources/js/jquery-1.8.2.js"></script>
<script type="text/javascript" src="/juritest/resources/js/menu.js"></script>
</h:head>

<h:body>
<ui:composition template="../../templates/gridsTemplate.xhtml">
    <ui:define name="content">
        ...
                <h:panelGroup style="text-align: left">
                    <hr />
                    <h:selectManyCheckbox
                        value="#{gridPopUpBean.oneQuestionUserAnswers}" 
                        layout="pageDirection">
                        <f:selectItem itemValue="a"
                            itemLabel="#{gridPopUpBean.currentQuestion.a}" />
                        <f:selectItem itemValue="b"
                            itemLabel="#{gridPopUpBean.currentQuestion.b}" />
                        <f:selectItem itemValue="c"
                            itemLabel="#{gridPopUpBean.currentQuestion.c}" />
                        <f:ajax event="click" listener="#{gridPopUpBean.changeListener()}"/>
                    </h:selectManyCheckbox>
                </h:panelGroup>
   ...

I get an error saying "One or more resources have the target of 'head', but no 'head' component has been defined within the view." 我收到一条错误消息：“一个或多个资源的目标是'head'，但是视图中没有定义'head'组件。” I have < h:head> not just < head>, I read that this was a possible problem. 我有<h：head>而不只是<head>，我读到这是一个可能的问题。

And the snippet from the bean: 以及来自Bean的代码段：

public void changeListener(ValueChangeEvent e) {

    change = true;
}

I have tried without < f:ajax like 我试过没有<f：ajax像

<h:selectManyCheckbox
                        value="#{gridPopUpBean.oneQuestionUserAnswers}" valueChangeListener="#{gridPopUpBean.changeListener()}" onclick="submit()"
                        layout="pageDirection">
                        <f:selectItem itemValue="a"
                            itemLabel="#{gridPopUpBean.currentQuestion.a}" />
                        <f:selectItem itemValue="b"
                            itemLabel="#{gridPopUpBean.currentQuestion.b}" />
                        <f:selectItem itemValue="c"
                            itemLabel="#{gridPopUpBean.currentQuestion.c}" />
                        <f:ajax event="click" listener="#{gridPopUpBean.changeListener()}"/>
                    </h:selectManyCheckbox>

but with no luck... 但是没有运气

Answer 1

One or more resources have the target of 'head', but no 'head' component has been defined within the view." I have < h:head> not just < head>, I read that this was a possible problem. 一个或多个资源的目标是“ head”，但是视图中没有定义“ head”组件。”我有<h：head>而不只是<head>，我读到这是一个可能的问题。

Anything outside <ui:composition> is ignored . <ui:composition>之外的任何内容都将被忽略 。 If you need a <h:head> , it needs to go in the master template, the gridsTemplate.xhtml (or any of its parent templates). 如果需要<h:head> ，则需要进入主模板， gridsTemplate.xhtml （或其任何父模板）。

Further, if you aren't using a visual editor for your XHTML files (like Dreamweaver), then I strongly recommend to stop putting any content outside <ui:composition> , otherwise you keep confusing yourself . 此外，如果您没有为XHTML文件（例如Dreamweaver）使用可视化编辑器，那么我强烈建议您停止将任何内容放在<ui:composition> ，否则您会感到困惑。

H：selectManyChexkbox`s

问题描述

1 个解决方案

解决方案1
2 已采纳 2013-04-20 21:31:59

See also: 也可以看看：

See also: 也可以看看：

See also: 也可以看看：

H：selectManyChexkbox`s

问题描述

1 个解决方案

解决方案1 2 已采纳 2013-04-20 21:31:59

See also: 也可以看看：

See also: 也可以看看：

See also: 也可以看看：

解决方案1
2 已采纳 2013-04-20 21:31:59