jsf-2 - 我可以动态添加/删除Primefaces组件吗？

Question

如何动态添加/删除素数输入文本？

Answer 1

要添加/删除文本框，请尝试以下片段。

 <h:panelGrid columns="1" cellpadding="10">
        <h:commandButton value="+" action="#{contactBean.addPhone}"
            image="../images/addbtn.png" />
        <p:dataTable border="0" value="#{contactBean.phoneNos}" var="p"
            rowIndexVar="rowIndex" emptyMessage="No phone numbers entered">
            <p:column>
                <h:selectOneMenu id="extraTask1" value="#{p.phoneType}">
                    <f:selectItem itemLabel="Select" itemValue="" />
                    <f:selectItem itemLabel="Mobile" itemValue="Mobile" />
                    <f:selectItem itemLabel="Work" itemValue="Work" />
                    <f:selectItem itemLabel="Others" itemValue="Others" />
                </h:selectOneMenu>
            </p:column>
            <p:column>
                <p:inputText value="#{p.phoneNo}" />
            </p:column>
            <p:column>
                <h:commandButton value="remove" image="../images/button_remove.gif"
                    actionListener="#{contactBean.removePhone}">
                    <f:param name="columnToRemove" value="#{rowIndex}" />
                </h:commandButton>
            </p:column>
        </p:dataTable>


    </h:panelGrid>