ui:repeat中的Primefaces:radioButton [英] Primefaces :radioButton inside a ui:repeat
本文介绍了ui:repeat中的Primefaces:radioButton的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
这是我的xhtml代码:
This is my xhtml code :
<?xml version='1.0' encoding='UTF-8' ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:p="http://primefaces.org/ui">
<h:head>
<title>Custom Radio Test</title>
</h:head>
<h:body>
<h:form id="mF" >
<p:selectOneRadio id="ITRadioGrp" value="#{testBean.radioSelectedValue}" layout="custom">
<f:selectItems value="#{testBean.selectItems}" />
</p:selectOneRadio>
<h:panelGrid columns="1">
<ui:repeat id="vBGOF" value="#{testBean.groupOfFlights}" var="aFlight" varStatus="gofIndex">
<p:radioButton for="ITRadioGrp" itemIndex="#{gofIndex.index}"/> #{aFlight}
</ui:repeat>
</h:panelGrid>
</h:form>
</h:body>
</html>
这是托管bean:
package com.modern;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.RequestScoped;
import javax.faces.model.SelectItem;
import java.util.*;
@ManagedBean
@RequestScoped
public class TestBean {
private String radioSelectedValue;
private String[] groupOfFlights;
private List selectItems;
public TestBean() {
groupOfFlights = new String[]{"FlightOne", "FlightTwo", "FlightThree"};
}
public String[] getGroupOfFlights() {
return groupOfFlights;
}
public void setGroupOfFlights(String[] groupOfFlights) {
this.groupOfFlights = groupOfFlights;
}
public String getRadioSelectedValue() {
return radioSelectedValue;
}
public void setRadioSelectedValue(String radioSelectedValue) {
this.radioSelectedValue = radioSelectedValue;
}
// modified
public List getSelectItems() {
try {
if (selectItems == null || selectItems.isEmpty()) {
selectItems = new ArrayList();
for (int g = 0; g < 3; g++) {
SelectItem option = new SelectItem(g, "flight" + (g + 1)); // value, label
selectItems.add(option);
}
}
} catch (Exception e) {
System.out.println(this.getClass().getName() + "] EXCEPTION " + e.toString());
}
return selectItems;
}
public void setSelectItems(List selectItems) {
this.selectItems = selectItems;
}
}
我总是遇到相同的错误:
I always get the same error :
在视图中找不到组件'mF:ITRadioGrp'.
javax.faces.FacesException: Cannot find component 'mF:ITRadioGrp' in view.
at org.primefaces.component.radiobutton.RadioButtonRenderer.findSelectOneRadio(RadioButtonRenderer.java:144)
at org.primefaces.component.radiobutton.RadioButtonRenderer.encodeEnd(RadioButtonRenderer.java:35)
at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:875)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1763)
at com.sun.faces.facelets.component.RepeatRenderer.encodeChildren(RepeatRenderer.java:104)
at com.sun.faces.facelets.component.UIRepeat.process(UIRepeat.java:513)
at com.sun.faces.facelets.component.UIRepeat.encodeChildren(UIRepeat.java:974)
at com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.encodeRecursive(HtmlBasicRenderer.java:304)
at com.sun.faces.renderkit.html_basic.GridRenderer.renderRow(GridRenderer.java:185)
at com.sun.faces.renderkit.html_basic.GridRenderer.encodeChildren(GridRenderer.java:129)
at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:845)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1756)
at javax.faces.render.Renderer.encodeChildren(Renderer.java:168)
at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:845)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1756)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1759)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1759)
at com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:401)
at com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:131)
at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:121)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
我尝试更改
<p:radioButton for="mF:ITRadioGrp" itemIndex="#{gofIndex.index}"/> #{aFlight}
到(我检查了HTML源代码，删除了p:selectOneRadio中的layout = custom):
to (i checked the HTML source deleting the layout=custom" in p:selectOneRadio) :
- mF:ITRadioGrp
- ITRadioGrp
- mF:ITRadioGrp:0
- mF:ITRadioGrp:1 ...
但总是相同的错误！ 我在哪里错了??? 谢谢！
but always same error!! where i'm wrong??? Thanks!
推荐答案
使用冒号作为前缀，以便从视图根开始寻址p:selectOneRadio:
Use a colon as prefix in order to address the p:selectOneRadio beginning from the view root:
<p:radioButton for=":mF:ITRadioGrp" itemIndex="#{gofIndex.index}"/>
如果这不起作用，请在浏览器中查看页面的html源，并找到p:selectOneRadio的正确客户端ID.在您的for属性中使用此ID.
If this does not work, look into the html source of your page in browser and find the correct client id for the p:selectOneRadio. Use this id in your for attribute.
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