How to update via RequestContext

Question

I am trying to update a table by using RequestContext.update() The following code is working (jsf):

<h:panelGrid columns="2" style="width: 100%" columnClasses="treeColumn,tableColumn">
        <h:panelGroup id="treePanel">
            <p:tree id="tree" 
                    value="#{bean.root}" 
                    var="node" 
                    dynamic="true"
                    cache="true"
                    animate="true"
                    selectionMode="single"
                    selection="#{bean.selectedNode}"
                    rendered="#{bean.renderTree}"> 
                <p:ajax event="select" listener="#{bean.onNodeSelect}" update=":mainForm:treePanel,:mainForm:tablePanel"/>
                <p:ajax event="collapse" listener="#{bean.onNodeCollapse}"/>
                <p:treeNode expandedIcon="ui-icon-folder-open"  
                            collapsedIcon="ui-icon-folder-collapsed">  
                    <h:outputText value="#{node.name}" styleClass="tableTreeText"/>  
                </p:treeNode> 
                 <p:treeNode expandedIcon="ui-icon-folder-open"  
                             collapsedIcon="ui-icon-folder-collapsed">  
                    <h:outputText value="#{node.name}" styleClass="tableTreeText"/>  
                </p:treeNode> 
            </p:tree> 
        </h:panelGroup>
        <h:panelGroup id="tablePanel" styleClass="acqPanelTable">
            <p:dataTable id="acqDataTable"
                         widgetVar="acqTablehdsWidget"
                         var="acq"
                         value="#{bean.list}" 
                         rendered="#{bean.renderTable}"
                         filteredValue="#{bean.filteredList}"
                         paginator="true"
                         paginatorPosition="bottom"

     .....
     ....
     ...
     ..
     .

But not via the server side:

 RequestContext requestContext = RequestContext.getCurrentInstance();
 requestContext.update(":mainForm:tablePanel");
 renderTable = true;

I don’t understand what is the different ?

Appreciate your help for any advice

Thanks

Answer 1

Remove the leading colon.

requestContext.update("mainForm:tablePanel");

It's always resolved relative to UIViewRoot. The leading colon is only valid when you're currently sitting in an UINamingContainer component in the view.