on 07-24-2007 10:43 AM
Hi,
I had a Tlayout.In that the left view is a Tree. When I clicked a particular element in the Tree on the left View I want the details of it to be displayed in the right View. What is the code for handling the click event of a tree and load a view corresponding to the clicked element and display it in right view.
Thanks in Advance
Safeer.I
Hi Safeer,
Refer to the below document, which has all the steps for creating a Tree. This tutorial is similar to the query you have posted,which involves a user click and the corresponding name will appear.
<a href="https://www.sdn.sap.comhttp://www.sdn.sap.comhttp://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/library/webdynpro/wd%20java/wd%20tutorials/constructing%20a%20recursive%20and%20loadable%20web%20dynpro%20tree.pdf">Constructing a Recursive Loadable WebDynpro Tree</a>
Please close the other thread which is same is this one.
Regards
Srikanth
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Hi,
Thanks Armin and Srikanth
My problem is solved .
The Problem is with the line
IWDTreeNodeType treeNode = (IWDTreeNodeType) view.getElement("TreeNode");
The error was I gave ID name different in Tree UI properties and in getElement().
I gave the same name. It is now working fine.
I had given two points for both of U
Thanks and regards,
Safeer.I
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Thanks Srikanth and Armin.
Safeer .I
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Error Summary
While processing the current request, an exception occured which could not be handled by the application or the framework.
If the information contained on this page doesn't help you to find and correct the cause of the problem, please contact your system administrator. To facilitate analysis of the problem, keep a copy of this error page. Hint: Most browsers allow to select all content, copy it and then paste it into an empty document (e.g. email or simple text file).
Root Cause
The initial exception that caused the request to fail, was:
java.lang.NullPointerException
at hbs.saf.TreeTut1View.wdDoModifyView(TreeTut1View.java:234)
at hbs.saf.wdp.InternalTreeTut1View.wdDoModifyView(InternalTreeTut1View.java:220)
at com.sap.tc.webdynpro.progmodel.generation.DelegatingView.doModifyView(DelegatingView.java:78)
at com.sap.tc.webdynpro.progmodel.view.View.modifyView(View.java:308)
at com.sap.tc.webdynpro.clientserver.cal.ClientComponent.doModifyView(ClientComponent.java:480)
... 27 more
See full exception chain for details.
System Environment
Client
Web Dynpro Client Type HTML Client
User agent Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 1.1.4322)
Version null
DOM version null
Client Type msie6
Client Type Profile ie6
ActiveX enabled
Cookies enabled
Frames enabled
Java Applets enabled
JavaScript enabled
Tables enabled
VB Script enabled
Server
Web Dynpro Runtime Vendor: SAP, build ID: 7.0007.20060331081328.0000 (release=645_VAL_REL, buildtime=2006-03-31:06:24:04[UTC], changelist=396896, host=pwdfm101), build date: Wed Mar 28 16:13:15 GMT+05:30 2007
J2EE Engine No information available
Java VM Java HotSpot(TM) Server VM, version:1.4.2_12-b03, vendor: Sun Microsystems Inc.
Operating system Windows 2003, version: 5.2, architecture: x86
Session & Other
Session Locale en_US
Time of Failure Tue Jul 31 11:10:50 GMT+05:30 2007 (Java Time: 1185860450203)
Web Dynpro Code Generation Infos
local/TreeTut1
SapDictionaryGenerationCore 7.0009.20060802115015.0000 (release=645_VAL_REL, buildtime=2006-08-26:14:24:21[UTC], changelist=413123, host=PWDFM101.wdf.sap.corp)
SapDictionaryGenerationTemplates (unknown)
SapGenerationFrameworkCore 7.0009.20060719095755.0000 (release=645_VAL_REL, buildtime=2006-08-26:14:12:57[UTC], changelist=411255, host=PWDFM101.wdf.sap.corp)
SapIdeWebDynproCheckLayer 7.0009.20060802115035.0000 (release=645_VAL_REL, buildtime=2006-08-26:14:30:00[UTC], changelist=413124, host=PWDFM101.wdf.sap.corp)
SapMetamodelCommon 7.0009.20060210160857.0000 (release=645_VAL_REL, buildtime=2006-08-26:14:13:46[UTC], changelist=388995, host=PWDFM101.wdf.sap.corp)
SapMetamodelCore 7.0009.20060210160857.0000 (release=645_VAL_REL, buildtime=2006-08-26:14:13:38[UTC], changelist=388995, host=PWDFM101.wdf.sap.corp)
SapMetamodelDictionary 7.0009.20060719095619.0000 (release=645_VAL_REL, buildtime=2006-08-26:14:21:59[UTC], changelist=411251, host=PWDFM101.wdf.sap.corp)
SapMetamodelWebDynpro 7.0009.20060428190938.0000 (release=645_VAL_REL, buildtime=2006-08-26:14:26:52[UTC], changelist=400815, host=PWDFM101.wdf.sap.corp)
SapWebDynproGenerationCTemplates 7.0009.20060804145649.0000 (release=645_VAL_REL, buildtime=2006-08-26:14:45:29[UTC], changelist=413534, host=pwdfm101)
SapWebDynproGenerationCore 7.0009.20060802115035.0000 (release=645_VAL_REL, buildtime=2006-08-26:14:30:11[UTC], changelist=413124, host=PWDFM101.wdf.sap.corp)
SapWebDynproGenerationTemplates 7.0009.20060804145649.0000 (release=645_VAL_REL, buildtime=2006-08-26:14:45:29[UTC], changelist=413534, host=pwdfm101)
sap.com/tcwddispwda
No information available null
sap.com/tcwdcorecomp
No information available null
Detailed Error Information
Detailed Exception Chain
java.lang.NullPointerException
at hbs.saf.TreeTut1View.wdDoModifyView(TreeTut1View.java:234)
at hbs.saf.wdp.InternalTreeTut1View.wdDoModifyView(InternalTreeTut1View.java:220)
at com.sap.tc.webdynpro.progmodel.generation.DelegatingView.doModifyView(DelegatingView.java:78)
at com.sap.tc.webdynpro.progmodel.view.View.modifyView(View.java:308)
at com.sap.tc.webdynpro.clientserver.cal.ClientComponent.doModifyView(ClientComponent.java:480)
at com.sap.tc.webdynpro.clientserver.window.WindowPhaseModel.doModifyView(WindowPhaseModel.java:551)
at com.sap.tc.webdynpro.clientserver.window.WindowPhaseModel.processRequest(WindowPhaseModel.java:148)
at com.sap.tc.webdynpro.clientserver.window.WebDynproWindow.processRequest(WebDynproWindow.java:330)
at com.sap.tc.webdynpro.clientserver.cal.AbstractClient.executeTasks(AbstractClient.java:143)
at com.sap.tc.webdynpro.clientserver.session.ApplicationSession.doProcessing(ApplicationSession.java:297)
at com.sap.tc.webdynpro.clientserver.session.ClientSession.doApplicationProcessingStandalone(ClientSession.java:706)
at com.sap.tc.webdynpro.clientserver.session.ClientSession.doApplicationProcessing(ClientSession.java:660)
at com.sap.tc.webdynpro.clientserver.session.ClientSession.doProcessing(ClientSession.java:228)
at com.sap.tc.webdynpro.clientserver.session.RequestManager.doProcessing(RequestManager.java:152)
at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doContent(DispatcherServlet.java:56)
at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doGet(DispatcherServlet.java:40)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.runServlet(HttpHandlerImpl.java:390)
at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.handleRequest(HttpHandlerImpl.java:264)
at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:347)
at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:325)
at com.sap.engine.services.httpserver.server.RequestAnalizer.invokeWebContainer(RequestAnalizer.java:887)
at com.sap.engine.services.httpserver.server.RequestAnalizer.handle(RequestAnalizer.java:241)
at com.sap.engine.services.httpserver.server.Client.handle(Client.java:92)
at com.sap.engine.services.httpserver.server.Processor.request(Processor.java:148)
at com.sap.engine.core.service630.context.cluster.session.ApplicationSessionMessageListener.process(ApplicationSessionMessageListener.java:33)
at com.sap.engine.core.cluster.impl6.session.MessageRunner.run(MessageRunner.java:41)
at com.sap.engine.core.thread.impl3.ActionObject.run(ActionObject.java:37)
at java.security.AccessController.doPrivileged(Native Method)
at com.sap.engine.core.thread.impl3.SingleThread.execute(SingleThread.java:100)
at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:170)
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