Navigation Error in Web Dynpro Application

[Former Member]

Hi All,

I developed a web dynpro application with 2 views.

I implemented the navigation paths(in and outbound plugs). I have a Next button in the first view and when

I clicked the next button it opened the second view.

It was working fine until, i created custom controller

and defined model node and model binding by calling RFC.

In the first view, i created a model node corresponding to the custom controller model node and defined the context mapping between the first view and the custom controller.

When I run the application (the first view displays data calling RFC) once I clicked the next button i got this error message.

com.sap.tc.webdynpro.progmodel.context.ContextException: Path null does not point to an attribute, but to com.sap.tc.webdynpro.progmodel.generation.DelegatingView@8fc86f

at com.sap.tc.webdynpro.progmodel.context.Paths.createAttributePointer(Paths.java:94)

at com.sap.tc.webdynpro.clientserver.uielib.standard.impl.AbstractInputField.getValue(AbstractInputField.java:1050)

at com.sap.tc.webdynpro.clientserver.uielib.standard.impl.AbstractInputField.getValue(AbstractInputField.java:1098)

at com.sap.tc.webdynpro.clientimpl.html.uielib.standard.uradapter.InputFieldAdapter.getValue(InputFieldAdapter.java:550)

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.ie6.InputFieldRenderer.render(InputFieldRenderer.java:41)

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.base.AbstractRenderManager.render(AbstractRenderManager.java:269)

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.base.AbstractRenderManager.render(AbstractRenderManager.java:95)

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.ie6.GridLayoutRenderer.renderGridLayoutCellFragment(GridLayoutRenderer.java:626)

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.ie6.GridLayoutRenderer.renderGridLayoutRowFragment(GridLayoutRenderer.java:330)

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.ie6.GridLayoutRenderer.renderGridLayoutFragment(GridLayoutRenderer.java:261)

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.ie6.GridLayoutRenderer.render(GridLayoutRenderer.java:57)

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.base.AbstractRenderManager.render(AbstractRenderManager.java:269)

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.base.AbstractRenderManager.render(AbstractRenderManager.java:95)

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.ie6.GroupRenderer.renderGroupFragment(GroupRenderer.java:1030)

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.ie6.GroupRenderer.render(GroupRenderer.java:49)

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.base.AbstractRenderManager.render(AbstractRenderManager.java:269)

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.base.AbstractRenderManager.render(AbstractRenderManager.java:95)

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.ie6.FlowLayoutRenderer.renderFlowLayoutItemFragment(FlowLayoutRenderer.java:177)

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.ie6.FlowLayoutRenderer.renderFlowLayoutFragment(FlowLayoutRenderer.java:148)

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.ie6.FlowLayoutRenderer.render(FlowLayoutRenderer.java:33)

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.base.AbstractRenderManager.render(AbstractRenderManager.java:269)

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.base.AbstractRenderManager.render(AbstractRenderManager.java:95)

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.ie6.ScrollContainerRenderer.renderScrollContainerFragment(ScrollContainerRenderer.java:344)

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.ie6.ScrollContainerRenderer.render(ScrollContainerRenderer.java:41)

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.base.AbstractRenderManager.render(AbstractRenderManager.java:269)

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.base.AbstractRenderManager.render(AbstractRenderManager.java:95)

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.base.UiWindowRenderer.render(UiWindowRenderer.java:43)

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.base.AbstractRenderManager.render(AbstractRenderManager.java:269)

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.base.AbstractRenderManager.render(AbstractRenderManager.java:95)

at com.sap.tc.webdynpro.clientimpl.html.client.HtmlClient.sendHtml(HtmlClient.java:522)

at com.sap.tc.webdynpro.clientimpl.html.client.HtmlClient.sendResponse(HtmlClient.java:351)

at com.sap.tc.webdynpro.clientimpl.html.client.HtmlClient.sendResponse(HtmlClient.java:251)

at com.sap.tc.webdynpro.clientimpl.html.client.HtmlClient.sendResponse(HtmlClient.java:204)

at com.sap.tc.webdynpro.clientserver.task.WebDynproMainTask.execute(WebDynproMainTask.java:669)

at com.sap.tc.webdynpro.clientserver.cal.AbstractClient.executeTasks(AbstractClient.java:59)

at com.sap.tc.webdynpro.clientserver.cal.ClientManager.doProcessing(ClientManager.java:249)

at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doWebDynproProcessing(DispatcherServlet.java:154)

at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doContent(DispatcherServlet.java:116)

at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doPost(DispatcherServlet.java:55)

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:385)

at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.handleRequest(HttpHandlerImpl.java:263)

at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:340)

at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:318)

at com.sap.engine.services.httpserver.server.RequestAnalizer.invokeWebContainer(RequestAnalizer.java:821)

at com.sap.engine.services.httpserver.server.RequestAnalizer.handle(RequestAnalizer.java:239)

at com.sap.engine.services.httpserver.server.Client.handle(Client.java:92)

at com.sap.engine.services.httpserver.server.Processor.request(Processor.java:147)

at com.sap.engine.core.service630.context.cluster.session.ApplicationSessionMessageListener.process(ApplicationSessionMessageListener.java:37)

at com.sap.engine.core.cluster.impl6.session.UnorderedChannel$MessageRunner.run(UnorderedChannel.java:71)

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:94)

at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:162)

Can anyone please tell me what is the reason for this?

and how to fix it?

Thanks

[Former Member · Accepted solution]

There exists some input field without proper binding of "value" property. Check all bindings and context mappings.

Armin

[Former Member]

Thanks. It has solved the issue with your help.

Thanks a lot.

[Former Member]

Hi

Are you having any inputfields in your next view?If yes then check if you have bound the context attribute to it.

I think you haven't done that.

Regards,

Ajay