从单选按钮更新复选框
我正在尝试使用以下代码将 ajax 行为添加到 selectoneradio:
xhtml:
<h:selectOneRadio id="metalA" converter="metalConverter" value="#{backingBean.metal.metalCode">
<f:selectItems value="#{backingBean.metalCodeRadio}" />
<f:ajax listener="#{backingBean.updateMenu}" event="click" execute="metalA" render="metalTypeMenuA"/>
</h:selectOneRadio>
<p:outputPanel id="panelA">
<h:selectOneMenu id="metalTypeMenuA" converter="metalConverter" value="#{backingBean.order.metal}" rendered="#{teklifIslemleriBean.selectedITip == 1}">
<f:selectItems value="#{backingBean.metalDetailsMenu}" />
</h:selectOneMenu>
</p:outputPanel>
backing bean:
MetalCode selectedMK = null;
public void updateMenu(AjaxBehaviorEvent event) {
System.out.println("Entered to updateMenu method");
if (metal.getMetalKod()!= null) {
electedMK = aMetal.getMetalCode();
}
if (selectedMK != null) {
// metalTypeMenuA Combobox
List<Metal> metalList = aService.getAccToMetalCode(null, selectedMK);
System.out.println("MetalList:" + metalList.size());
metalTypeMenuA.clear();
for (Metal m : metalList) {
metalTypeMenuA.add(new SelectItem(m, "No:" + m.getMetalNo() + " ,Weight: " + m.getWeight();
}
}
}
但是它甚至没有进入 updateMenu 方法。我尝试选择、更改等而不是单击。我还尝试放置一个包装面板并更新它而不是复选框,但仍然不好。上面的代码有什么问题?是否可以通过更改单选按钮来更新复选框?提前致谢。
JSF 2.0 Primefaces 2.2.1
编辑: 我添加了以下
<h:message for="metalA" id="messaged"/>
<f:ajax listener="#{backingBean.updateMenu}" event="click" execute="metalKoduA" execute="metalA" render="messaged orderPG2"/>
orderPG2 是复选框的包装器。但我仍然可以在 h:message 中收到任何错误消息或发生任何 ajax 行为。
I am trying to add ajax behavior to selectoneradio with this code:
xhtml:
<h:selectOneRadio id="metalA" converter="metalConverter" value="#{backingBean.metal.metalCode">
<f:selectItems value="#{backingBean.metalCodeRadio}" />
<f:ajax listener="#{backingBean.updateMenu}" event="click" execute="metalA" render="metalTypeMenuA"/>
</h:selectOneRadio>
<p:outputPanel id="panelA">
<h:selectOneMenu id="metalTypeMenuA" converter="metalConverter" value="#{backingBean.order.metal}" rendered="#{teklifIslemleriBean.selectedITip == 1}">
<f:selectItems value="#{backingBean.metalDetailsMenu}" />
</h:selectOneMenu>
</p:outputPanel>
backing bean:
MetalCode selectedMK = null;
public void updateMenu(AjaxBehaviorEvent event) {
System.out.println("Entered to updateMenu method");
if (metal.getMetalKod()!= null) {
electedMK = aMetal.getMetalCode();
}
if (selectedMK != null) {
// metalTypeMenuA Combobox
List<Metal> metalList = aService.getAccToMetalCode(null, selectedMK);
System.out.println("MetalList:" + metalList.size());
metalTypeMenuA.clear();
for (Metal m : metalList) {
metalTypeMenuA.add(new SelectItem(m, "No:" + m.getMetalNo() + " ,Weight: " + m.getWeight();
}
}
}
However it does not even enter to the updateMenu method. instead of click I tried select, change, etc. I also tried to put a wrapper panel and update it instead of checkbox, still no good. What is wrong with above code? Is updating a checkbox with a change in radiobutton doable? Thanks in advance.
JSF 2.0 Primefaces 2.2.1
EDIT:
I added following
<h:message for="metalA" id="messaged"/>
<f:ajax listener="#{backingBean.updateMenu}" event="click" execute="metalKoduA" execute="metalA" render="messaged orderPG2"/>
orderPG2 is a wrapper around checkbox. But still I can get any error message in h:message or any ajax behavior is happening.
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的render
属性不应该指向由有条件地在服务器端渲染的组件呈现
属性。让它指向总是渲染的最近的父级。(请注意,我删除了
event="click"
和execute="metalA"
,因为它们已经是默认值)如果仍然不行工作,那么您需要阅读服务器日志以查找任何丢失的面孔消息。重大变化,您将看到 验证错误:“值无效“ 或者可能是转换错误。为了防止在 ajax 渲染期间丢失这些消息,请确保您以正确的方式使用
和/或
您还将它们包含在
的render
中。The
render
attribute of<f:ajax>
should not point to a component which is by itself conditionally server-side rendered byrendered
attribtue. Let it point to the closest parent which is always rendered instead.(note that I removed
event="click"
andexecute="metalA"
as those are the defaults already)If that still doesn't work, then you'd need to read the server logs for any missing faces messages. Big change that you'll see a Validation Error: "Value is not valid" or perhaps a conversion error. To prevent those messages from being missed during ajax rendering, ensure that you're using
<h:message>
and/or<h:messages>
the right way and that you also include them in therender
of the<f:ajax>
.