Question

我有两个复合材料，当我更改汽车名称时，我需要在第二个复合材料中渲染该字段，但显示此错误：

<f:ajax> contains an unknown id 'nameCli' - cannot locate it in the context of the component nameCar.

遵循以下代码： 1ª复合car.xhtml

<composite:interface>
    <composite:attribute name="id" required="true" type="java.lang.String" />
    <composite:attribute name="nameCar" />
    <composite:attribute name="clear" method-signature="java.lang.String action()" />
</composite:interface>

<composite:implementation>
    <label>Car:</label>
    <h:inputText id="nameCar" value="#{cc.attrs.nameCar}">
        <!-- Here is the ajax that call the method 'clear' when the inputText changed -->
        <f:ajax listener="#{cc.attrs.clear}" event="change" render="nameCli ageCli" />
    </h:inputText>
</composite:implementation>

2ª复合client.xhtml

<composite:interface>
    <composite:attribute name="id" required="true" type="java.lang.String" />
    <composite:attribute name="nameCli" />
    <composite:attribute name="ageCli" />
</composite:interface>  

<composite:implementation>
    <label>Client's Name:</label>
    <h:inputText id="nameCli" value="#{cc.attrs.nameCli}" />
    <label>Age:</label>
    <h:inputText id="ageCli" value="#{cc.attrs.ageCli}" />
</composite:implementation>

principal.xhtml

<proj:car id="car" nameCar="#{beanController.car.name}" clear="#{beanController.clear}" />
<proj:client id="client" nameCli="#{beanController.client.name}" ageCli="#{beanController.client.age}" />

和BeanController.java

private Car car;
private Client client;

public String clear() {
    client.setName(null);
    client.setAge(null);
    return null;
}

//getters and setters

如果我改变了

<f:ajax listener="#{cc.attrs.clear}" event="change" render="nameCli ageCli" />

到

<f:ajax listener="#{cc.attrs.clear}" event="change" render=":client:nameCli :client:ageCli" />

也不起作用。

我无法调用渲染@all或@form，因为还有其他要渲染的字段。

已编辑：解决方案

@BalusC我很感激你的评论，但你在其他问题上的回答对我不起作用。有必要动态地实现我的代码。看看吼叫。

在我的car.xhtml复合中，我取消了ajax的渲染

<f:ajax listener="#{cc.attrs.clear}" event="change" />

在我的BeanController.java中，我实现了这样的clear方法。

public String clear() {
    client.setName(null);
    client.setAge(null);

    // Get the fields
    UIInput uiNameCli = (UIInput) FacesContext.getCurrentInstance().getViewRoot().findComponent("myForm:client:nameCli");
    UIInput uiAgeCli = (UIInput) FacesContext.getCurrentInstance().getViewRoot().findComponent("myForm:client:ageCli");

    FacesContext context = FacesContext.getCurrentInstance(); // Update the fields.
    context.getPartialViewContext().getRenderIds().add(uiNameCli.getClientId(context));
    context.getPartialViewContext().getRenderIds().add(uiAgeCli.getClientId(context));

    return null;
}

如何使用两个复合来找出ajax渲染的ID？

0 个答案: