如果在PrimeFaces的同一DIV中有两个消息以更新该DIV，如何更新一条消息

Question

div中有两个消息，如果我们更新了div两个消息，则如何更新，然后如何更新PrimeFaces中的单个消息在下面，您可以找到我到目前为止尝试的

 <p:confirmDialog id="deleteDlg" message="Are you sure, you want to delete ?" header="Delete" widgetVar="deleteWidget" closeOnEscape="true" modal="true" draggable="true"> 
<p:commandButton value="Yes" oncomplete="PF('deleteWidget').hide();" id="yes" actionListener="#{searchBean.onDelete}" update=":terminalSearchForm:deleteDlg terminalSearchForm @(.error)">    </p:commandButton>
<p:commandButton value="No" oncomplete="PF('deleteWidget').hide();" update=":terminalSearchForm:deleteDlg"/> 
</p:confirmDialog> 

Answer 1

当您想更新页面中的某些内容时，请想像您有一棵树，您想要更新的深度

看起来像这个

 <p:someElement id="id1" ....>
  <p:someElement  id="idS1" ....   update=":id1:idS1"   />
  <p:someElement  id="idS2" .... />
 </p:someElement

在我的示例中，如果我想更新idS1 + idS2，我会说update=":id1" 并将更新id1 Informations

您可以阅读此帖子了解PrimeFaces Process/update和JSF F：AJAX执行/渲染属性，肯定会有所帮助

关于你的示例

 <p:confirmDialog id="deleteDlg" message="Are you sure, you want to delete ?" header="Delete" widgetVar="deleteWidget" closeOnEscape="true" modal="true" draggable="true"> 
  <p:commandButton id="btn1" value="Yes" oncomplete="PF('deleteWidget').hide();" id="yes" actionListener="#{searchBean.onDelete}" update=":terminalSearchForm:deleteDlg terminalSearchForm @(.error)">    </p:commandButton>
  <p:commandButton id="btn2" value="No" oncomplete="PF('deleteWidget').hide();" update=":terminalSearchForm:deleteDlg:btn2"/> 
 </p:confirmDialog>

随时要求提供更多信息