<t:tree2> Problem
hi i am using t:Tree2
here is my code
<t:panelGrid width="310px" cellpadding="0" cellspacing="0" style="background-color: #F0F0F0; height: 205; margin-top: 5px;" >
<t:panelGrid columns="3" style="background-color: white; height: 200;" width="308" cellpadding="0" cellspacing="0">
<t:panelGrid cellpadding="0" cellspacing="0" id="lantree">
<rich:panel style="height: 195px; width: 304px; overflow: auto;">
<t:tree2 value="#{mainBind.customWizard.lanBrowser.treeNode}"
var="node" binding="#{mainBind.customWizard.lanBrowser.tree}"
varNodeToggler="t" >
<f:facet name="en">
<h:panelGroup>
<f:facet name="expand">
<t:graphicImage
value="../images/GridBank/Folders/grid_network/png/grid_network_16.png"
rendered="#{t.nodeExpanded}" border="0" />
</f:facet>
<f:facet name="collapse">
<t:graphicImage
value="../images/GridBank/Folders/grid_network/png/grid_network_16.png"
rendered="#{!t.nodeExpanded}" border="0" />
</f:facet>
<h:outputText value="#{node.description}" styleClass="nodeFolder" />
</h:panelGroup>
</f:facet>
<f:facet name="pn">
<h:panelGroup>
<f:facet name="expand">
<t:graphicImage value="../images/GridBank/lan/Globe.png"
rendered="#{t.nodeExpanded}" border="0" />
</f:facet>
<f:facet name="collapse">
<t:graphicImage value="../images/GridBank/lan/Globe.png"
rendered="#{!t.nodeExpanded}" border="0" />
</f:facet>
<h:outputText value="#{node.description}" styleClass="nodeFolder" />
</h:panelGroup>
</f:facet>
<f:facet name="domain">
<h:panelGroup>
<f:facet name="expand">
<t:graphicImage value="../images/GridBank/lan/group.png"
rendered="#{t.nodeExpanded}" border="0" />
</f:facet>
<f:facet name="collapse">
<t:graphicImage value="../images/GridBank/lan/group.png"
rendered="#{!t.nodeExpanded}" border="0" />
</f:facet>
<h:outputText value="#{node.description}" styleClass="nodeFolder" />
</h:panelGroup>
</f:facet>
<f:facet name="system">
<h:panelGroup>
<f:facet name="expand">
<t:graphicImage value="../images/GridBank/lan/PC.png"
rendered="#{t.nodeExpanded}" border="0" />
</f:facet>
<f:facet name="collapse">
<t:graphicImage value="../images/GridBank/lan/PC.png"
rendered="#{!t.nodeExpanded}" border="0" />
</f:facet>
<a4j:commandLink value="#{node.description}"
styleClass="nodeFolder"
action="#{mainBind.customWizard.lanBrowser.treeNodeClick}"
oncomplete="Richfaces.showModalPanel('lanLoginDialog');"
reRender="lanLoginDialog" />
</h:panelGroup>
</f:facet>
<f:facet name="folder">
<h:panelGroup>
<f:facet name="expand">
<t:graphicImage value="../images/GridBank/lan/PC.png"
rendered="#{t.nodeExpanded}" border="0" />
</f:facet>
<f:facet name="collapse">
<t:graphicImage value="../images/GridBank/lan/PC.png"
rendered="#{!t.nodeExpanded}" border="0" />
</f:facet>
<a4j:commandLink value="#{node.description}"
styleClass="nodeFolder"
action="#{mainBind.customWizard.lanBrowser.folderNodeClick}"
oncomplete="Richfaces.hideModalPanel('lanBrowser');"
reRender="hostDetailsPanel" />
</h:panelGroup>
</f:facet>
</t:tree2>
</rich:panel>
</t:panelGrid>
</t:panelGrid>it gives error while i try to RERENDER the page
09/09/08 12:59:44 ERROR webapp._ErrorPageWriter: An exception occurred java.lang.NullPointerException at javax.faces.component.UIComponentBase.isRendered(UIComponentBase.java:1251) at org.apache.myfaces.component.html.ext.AbstractHtmlGraphicImage.isRendered(AbstractHtmlGraphicImage.java:62) at org.ajax4jsf.renderkit.AjaxChildrenRenderer.encodeAjaxComponent(AjaxChildrenRenderer.java:75) at org.ajax4jsf.renderkit.AjaxChildrenRenderer.encodeAjaxChildren(AjaxChildrenRenderer.java:67) at org.ajax4jsf.renderkit.AjaxChildrenRenderer.encodeAjaxComponent(AjaxChildrenRenderer.java:115) at org.ajax4jsf.renderkit.AjaxChildrenRenderer.encodeAjaxChildren(AjaxChildrenRenderer.java:67) at org.ajax4jsf.renderkit.AjaxChildrenRenderer.encodeAjaxComponent(AjaxChildrenRenderer.java:115) at org.ajax4jsf.renderkit.AjaxChildrenRenderer.encodeAjaxChildren(AjaxChildrenRenderer.java:67) at org.ajax4jsf.renderkit.AjaxChildrenRenderer.encodeAjaxComponent(AjaxChildrenRenderer.java:115) at org.ajax4jsf.renderkit.AjaxChildrenRenderer.encodeAjaxChildren(AjaxChildrenRenderer.java:67) at org.ajax4jsf.renderkit.AjaxChildrenRenderer.encodeAjaxComponent(AjaxChildrenRenderer.java:115) at org.ajax4jsf.renderkit.AjaxChildrenRenderer.encodeAjaxChildren(AjaxChildrenRenderer.java:67) at org.ajax4jsf.renderkit.AjaxChildrenRenderer.encodeAjaxComponent(AjaxChildrenRenderer.java:115) at org.ajax4jsf.renderkit.AjaxChildrenRenderer.encodeAjaxChildren(AjaxChildrenRenderer.java:67) at org.ajax4jsf.renderkit.AjaxChildrenRenderer.encodeAjaxComponent(AjaxChildrenRenderer.java:115) at org.ajax4jsf.renderkit.AjaxChildrenRenderer.encodeAjaxChildren(AjaxChildrenRenderer.java:67) at org.ajax4jsf.renderkit.AjaxChildrenRenderer.encodeAjaxComponent(AjaxChildrenRenderer.java:115) at org.ajax4jsf.renderkit.AjaxChildrenRenderer.encodeAjaxChildren(AjaxChildrenRenderer.java:67) at org.ajax4jsf.renderkit.AjaxChildrenRenderer.encodeAjaxComponent(AjaxChildrenRenderer.java:115) at org.ajax4jsf.renderkit.AjaxChildrenRenderer.encodeAjaxChildren(AjaxChildrenRenderer.java:67) at org.ajax4jsf.renderkit.AjaxChildrenRenderer.encodeAjaxComponent(AjaxChildrenRenderer.java:115) at org.ajax4jsf.renderkit.AjaxChildrenRenderer.encodeAjaxChildren(AjaxChildrenRenderer.java:67) at org.ajax4jsf.renderkit.AjaxChildrenRenderer.encodeAjaxComponent(AjaxChildrenRenderer.java:115) at org.ajax4jsf.renderkit.AjaxContainerRenderer.encodeAjax(AjaxContainerRenderer.java:123) at org.ajax4jsf.component.AjaxViewRoot.encodeAjax(AjaxViewRoot.java:677) at org.ajax4jsf.component.AjaxViewRoot.encodeChildren(AjaxViewRoot.java:548) at javax.faces.component.UIComponent.encodeAll(UIComponent.java:250) at org.apache.myfaces.application.jsp.JspViewHandlerImpl.actuallyRenderView(JspViewHandlerImpl.java:427) at org.apache.myfaces.application.jsp.JspViewHandlerImpl.renderView(JspViewHandlerImpl.java:383) at org.ajax4jsf.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:100) at org.ajax4jsf.application.AjaxViewHandler.renderView(AjaxViewHandler.java:176) at org.apache.myfaces.lifecycle.RenderResponseExecutor.execute(RenderResponseExecutor.java:41) at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:140) at javax.faces.webapp.FacesServlet.service(FacesServlet.java:155) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:178) at org.ajax4jsf.webapp.BaseFilter.handleRequest(BaseFilter.java:290) at org.ajax4jsf.webapp.BaseFilter.processUploadsAndHandleRequest(BaseFilter.java:390) at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:517) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilter.java:301) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:263) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:584) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447) at java.lang.Thread.run(Unknown Source)
Please Tell me why i am getting this Exception