java - Primefaces : How to update a grid/table in the parent form from a command button on the child form in a dialog (dialog residing on the parent form)?

Question

我想通过按 id 为“updator”的按钮来更新 id 为“datatable”的表。 XHTML代码如下:-

<h:form id="mainForm">

    <p:datatable id = "datatable"> 

        ---- columns ----

    </p:datatable>

</h:form>

<p:dialog widgetVar="dlg" >

    <h:form id="subForm">

        various input fields
        ......  
        ......
        <p:commandButton id="updator" actionListener="#{javaBean.updateGrid()}" update="mainForm:datatable" oncomplete="dlg.hide()"/>

    </h:form>

</p:dialog>

Answer 1

试试这个:update=":mainForm:datatable"