Question

我正在尝试DataTable - Cell Editing，如PrimeFaces展示中所示。我已经修改了Facelets代码作为这个问题的结果：primefaces in-cell-editing not update data in database因为<p:ajax event="cellEdit">没有更新整个数据表。

<h:form id="form">            
    <p:outputPanel id="testContainer" deferred="true">   
        <p:growl id="messages" showDetail="true" />  
        <p:remoteCommand name="onCellEdit" action="#{articlesbean.onCellEdit()}" update=":form:messages" />
        <p:dataTable id="cars" var="car" value="#{articlesbean.LMatpilotaccess1}" editable="true" editMode="cell" widgetVar="carsTable" update=":cars">  
            <p:ajax event="cellEdit" oncomplete="onCellEdit()"  /> 
            ...
        </p:dataTable>  
    </p:outputPanel> 
</h:form>

远程命令操作方法定义如下：

public void onCellEdit(CellEditEvent event) {  
    Object oldValue = event.getOldValue();  
    Object newValue = event.getNewValue();  

    if(newValue != null && !newValue.equals(oldValue)) {  
        FacesMessage msg = new FacesMessage(FacesMessage.SEVERITY_INFO, "Cell Changed", "Old: " + oldValue + ", New:" + newValue);  
        FacesContext.getCurrentInstance().addMessage(null, msg);  
    }  
}

但是，永远不会调用此方法，并抛出以下异常：

javax.el.MethodNotFoundException: Method not found: com.pfe.controller.ArticlesBean@1bb3a11.onCellEdit()

当我删除CellEditEvent参数时，它就可以了。但我实际上需要旧的和新的价值。我该怎么办？

Answer 1

试试这个

 <p:ajax event="cellEdit" listener="#{orderDetailController.onCellEditTableComplete}" update=":formGeneral:tabViewGeneral:growl :formGeneral:tabViewGeneral:OrderHeaderTableComplete"/>

   <p:cellEditor>  
       <f:facet name="output"><h:outputText value="#{orderDetail.quantity}" /></f:facet>  
       <f:facet name="input">
            <p:inputText id="modelInput" value="#{orderDetail.quantity}" valueChangeListener="#{orderDetailController.onValueQuantityChange}"/></f:facet>  
   </p:cellEditor>

并且

public void onValueQuantityChange(ValueChangeEvent event) {
    newQuantity = (Integer) event.getNewValue();
}

您将无法执行!newValue.equals(oldValue)测试比较，但您将能够获得答案。

public void onCellEditTableComplete(CellEditEvent event) {
    DataTable dataTable = (DataTable) event.getSource();
    OrderDetail oDetail = (OrderDetail) dataTable.getRowData();
    oDetail.setQuantity(newQuantity);
    ...
}

忘记p:remoteCommand在p:dataTable之外，而不是'所需'CellEditEvent。

已编辑 -

如果对于同一个表，您必须在此单元格中显示一些计算，则应从p：remoteCommand中调用它。只需添加oncomplete="onCellEditTableComplete()"并从表格外部执行更新

<p:remoteCommand name="onCellEditTableComplete" update=":formGeneral:tabViewGeneral:OrderHeaderTableComplete " />
   <p:dataTable ...>


        <p:ajax event="cellEdit" listener="#{orderDetailController.onCellEditTableComplete}" 
                                update=":formGeneral:tabViewGeneral:growl :formGeneral:tabViewGeneral:OrderHeaderTableResume" 
                                oncomplete="onCellEditTableComplete()"/>

Answer 2

尝试这样做：

<h:form id="form">            
    <p:outputPanel id="testContainer" deferred="true">  
        <p:growl id="messages" showDetail="true" />  
        <p:remoteCommand name="onCellEdit" action="#{articlesbean.onCellEdit()}" update=":form:messages" />
        <p:dataTable id="cars" var="car" value="#{articlesbean.LMatpilotaccess1}" editable="true" editMode="cell" widgetVar="carsTable" update=":cars">  
            <p:ajax event="cellEdit" oncomplete="onCellEdit()"  /> 
            ...
        </p:dataTable>  
  </h:form>
</p:outputPanel>

[]＆＃39; S

PrimeFaces数据表In-Cell Editing：我无法获取已编辑的对象

2 个答案: