difference between reRender and refresh

[vata2999]

Hi,

I create a tree with drag and drop but when i drag an item,  i need to refresh page to see changes and reRender has no effect.

here are codes

<rich:tree showConnectingLines="false"
                reRender="treePanel"             
                dragIndicator="epsTreeIndicator"
                id="epsTree" 
                ajaxSubmitSelection="false" switchType="client"
                dropListener="#{epsTreeSearch.processDrop}"
                adviseNodeOpened="#{epsTreeSearch.adviseNodeOpened}"
                >
                <a:support event="oncomplete" ajaxSingle="false" reRender="treeForm, treePanel, epsTree"/>      //doesn't work              
                <a:support event="oncomplete" ajaxSingle="false" oncomplete="javascript:location.reload(true)"/> // this works but it's not ajax
                <rich:recursiveTreeNodesAdaptor  recursionOrder="first" roots="#{rootWbs}" var="_item" nodes="#{_item.children}" >
                    <rich:treeNode acceptedTypes="projwbs" dropValue="#{_item}" dragType="projwbs" reRender="epsTree" 
                    dragValue="#{_item}" rendered="#{empty from}" dropListener="#{epsTreeSearch.processDrop}">
                        <s:link value="#{_item.wbsName}" view="/member/eps/epsEdit.xhtml">
                            <f:param name="epsId" value="#{_item.id}"/>
                        </s:link>
                        <rich:dndParam name="label" type="drag" value="#{_item.wbsName}" />
                    </rich:treeNode>
                    
                    
                    
                </rich:recursiveTreeNodesAdaptor>
                                
            </rich:tree>

I have no idea what's happening I even rerender component via code

FacesContext fc = FacesContext.getCurrentInstance();
            AjaxContext ac = AjaxContext.getCurrentInstance();
            UIComponent destTree = fc.getViewRoot().findComponent(componentName);
            ac.addComponentToAjaxRender(destTree);

I'm wondering what's the difference since both of them use identical  query ?

[just-greg]

Are you using 4.x ?

I could be wrong but I think that you need to change your 'reRender' to just render="treePanel"