正如 BalusC 所建议的,代码<p:ajax event="rowSelect" update=":xx:xx" />
应该可以工作....
这是同时更新 inputtext 和 outputtext 的示例。
<h:form>
<p:dataTable id="usertable" var="user" value="#{userManageBean.userList}"
rowKey="#{user.U_ID}" selection="#{userManageBean.selectedUser}"
selectionMode="single" paginator="true" rows="18" >
<p:ajax event="rowSelect" update=":useredit:edituser" />
<p:ajax event="rowSelect" update=":viewuser:displayuser" />
<p:column headerText="User Name">
<h:outputText value="#{user.username}" />
</p:column>
<p:column headerText="FName">
<h:outputText value="#{user.firstname}" />
</p:column>
<p:column headerText="LName">
<h:outputText value="#{user.lastname}" />
</p:column>
</p:dataTable>
</h:form>
<p:dialog id="userview" header="View User" widgetVar="dlg2" >
<h:form id="viewuser">
<h:panelGrid id="displayuser" columns="2" cellpadding="4">
<h:outputText value="User Name:" />
<h:outputText value="#{userManageBean.selectedUser.username}" />
<h:outputText value="First Name" />
<h:outputText value="#{userManageBean.selectedUser.firstname}" />
<h:outputText value="Last Name:" />
<h:outputText value="#{userManageBean.selectedUser.lastname}" />
</h:panelGrid>
</h:form>
</p:dialog>
<p:dialog id="user_edit" header="Edit User" widgetVar="dlgedit" >
<h:form id="useredit">
<h:panelGrid id="edituser" columns="2" cellpadding="4">
<h:outputText value="First Name" />
<h:inputText value="#{userManageBean.selectedUser.firstname}" />
<h:outputText value="Last Name" />
<h:inputText value="#{userManageBean.selectedUser.lastname}" />
<p:commandButton id="updateUser" value="Add" action="#{someaction}"
ajax="false" />
</h:panelGrid>
</h:form>
</p:dialog>