Runtime Exception while creating dynamic ui

Question

Hi ,
when i creating  textview ui element dynamically
iam getting runtime exception following is the same.
*Note:_*_
*textForD=(IWDTextView)view.createElementIWDTextView.class,"test"+i);_*_
*_the above statement is the cause for this exception.
_*com.sap.tc.webdynpro.services.exceptions.CreationFailedException: Cannot create view element implementation com.sap.tc.webdynpro.clientserver.uielib.standard.impl.TextView
     at com.sap.tc.webdynpro.progmodel.view.ViewElementFactory.createElement(ViewElementFactory.java:161)
     at com.sap.tc.webdynpro.progmodel.view.View.createElement(View.java:177)
     at com.cgsl.examples.dialogms.DispalyView.wdDoModifyView(DispalyView.java:153)
     at com.cgsl.examples.dialogms.wdp.InternalDispalyView.wdDoModifyView(InternalDispalyView.java:294)
     at com.sap.tc.webdynpro.progmodel.generation.DelegatingView.doModifyView(DelegatingView.java:78)
     at com.sap.tc.webdynpro.progmodel.view.View.modifyView(View.java:337)
     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:335)
     at com.sap.tc.webdynpro.clientserver.window.WebDynproWindow.processPhaseLoop(WebDynproWindow.java:345)
     at com.sap.tc.webdynpro.clientserver.cal.AbstractClient.executeTasks(AbstractClient.java:152)
     at com.sap.tc.webdynpro.clientserver.session.ApplicationSession.doProcessing(ApplicationSession.java:299)
     at com.sap.tc.webdynpro.clientserver.session.ClientSession.doApplicationProcessingStandalone(ClientSession.java:711)
     at com.sap.tc.webdynpro.clientserver.session.ClientSession.doApplicationProcessing(ClientSession.java:665)
     at com.sap.tc.webdynpro.clientserver.session.ClientSession.doProcessing(ClientSession.java:232)
     at com.sap.tc.webdynpro.clientserver.session.RequestManager.doProcessing(RequestManager.java:152)
     at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doContent(DispatcherServlet.java:62)
     at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doPost(DispatcherServlet.java:53)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
     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(AccessController.java:215)
     at com.sap.engine.core.thread.impl3.SingleThread.execute(SingleThread.java:100)
     at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:170)
Caused by: java.lang.reflect.InvocationTargetException
     at sun.reflect.GeneratedConstructorAccessor54.newInstance(Unknown Source)
     at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:44)
     at java.lang.reflect.Constructor.newInstance(Constructor.java:315)
     at com.sap.tc.webdynpro.progmodel.view.ViewElementFactory.createElement(ViewElementFactory.java:151)
     ... 34 more
Caused by: com.sap.tc.webdynpro.services.exceptions.WDRuntimeException: View: Cannot add element with duplicate ID "Deasis0" of type com.sap.tc.webdynpro.clientserver.uielib.standard.impl.TextView
     at com.sap.tc.webdynpro.progmodel.view.View.addElement(View.java:735)
     at com.sap.tc.webdynpro.progmodel.view.ViewElement.<init>(ViewElement.java:40)
     at com.sap.tc.webdynpro.progmodel.view.UIElement.<init>(UIElement.java:168)
     at com.sap.tc.webdynpro.clientserver.uielib.standard.impl.TextView.<init>(TextView.java:82)
     ... 38 more

Answer 1

Hi,
I think your code is not complete, I don't see any close bracket there.
anyway, inside of the loop you try to create InputField with the same name "test",
Please see "bold" for my correction.
if (firstTime){
IPrivateDispalyView.ISelectTableDataElement element;
IWDTextView textForD;
IWDInputField input;
for(int i=0;i<wdContext.nodeSelectTableData().size();i++){
   element=wdContext.nodeSelectTableData().getSelectTableDataElementAt(i);
   if(element.getCheck()){
     textForD=(IWDTextView)view.createElement(IWDTextView.class,"name"+i);
     input=(IWDInputField)view.createElement(IWDInputField.class,"test" + i );
     textForD.setText(element.getDeasis());
     IWDTransparentContainer           container=(IWDTransparentContainer)view.getElement("RootUIElementContainer");
          container.addChild(textForD);
          container.addChild(input);