Question

我的页面中有这棵树：

[]

在我的bean中，方法“cmdSaveSinglemyObjectItem”执行此操作：

<h:form id="form" >     

    <h:panelGrid columns="4" id="panel">

        <p:tree id="tree1"
                value="#{mybean.myObject}" 
                var="myObject" 
                selectionMode="single" 
                selection="#{mybean.selectedNode}"
                draggable="true" 
                droppable="true" 
                dragdropScope="myObjectTest">

            <p:ajax event="dragdrop" 
                    listener="#{mybean.onDragDrop}" 
                    update=":form:msgs" />

            <p:treeNode id="treeNode1">
                <div>
                    <h:outputText value="#{myObject.label}" />
                </div>
                <div>&nbsp;</div>
                <p:commandLink update=":formDialogmyObject:myObjectPanel" oncomplete="PF('documentDialog').show()" title="View">
                    <f:setPropertyActionListener value="#{myObject}" target="#{mybean.selectedmyObject}" />
                </p:commandLink>                    

            </p:treeNode>                
        </p:tree>            

        <p:tree id="tree2" 
                value="#{mybean.myObjectAvailable}" 
                var="myObjectAvailable"
                selectionMode="single" 
                selection="#{mybean.selectedNode}"
                draggable="true" 
                droppable="true" 
                dragdropScope="myObjectTest"
        >

            <p:ajax event="dragdrop" 
                    listener="#{mybean.onDragDropDelete}" 
                    update=":form:msgs" process="" />

            <p:treeNode>
                <h:outputText value="#{myObjectAvailable.label}" />
            </p:treeNode>
        </p:tree>            

    </h:panelGrid>     

    <br />

</h:form>

<p:dialog 
    id="dialogmyObject"   
    showEffect="clip"
    hideEffect="clip"
    widgetVar="documentDialog" 
    modal="true" 
    resizable="false"
    appendTo="@(body)"
    binding="#{mybean.dialog}"
>

    <h:form id="formDialogmyObject" >

        <p:outputPanel id="myObjectPanel" >

            <p:panelGrid columns="2" columnClasses="label,value" rendered="#{not empty mybean.selectedmyObject}">

                <h:outputLabel for="idmyObject" value="ID myObject" />
                <h:outputText id="idmyObject" value="#{mybean.selectedmyObject.idmyObject}" />

            </p:panelGrid>

            <br />

            <p:commandButton    
                id="cmdSaveSinglemyObjectItem"
                action="#{mybean.onSavemyObjectItem()}" 
                value="Save" 
                update=":form:tree1:treeNode1"
            />

        </p:outputPanel>

    </h:form>

Bean已正确更新，但树组件（id = tree1）未更新。查看旧值，但如果我刷新页面我查看数据更新...

Answer 1

您应该更新整个树而不仅仅是它的特定子元素。

update=":form:tree1"

而不是update=":form:tree1:treeNode1"

从支持bean重新加载<p：tree>似乎不起作用

1 个答案: