problem in creating radiobutton dynamically

[Former Member]

Hi,

In WdDoModifyView() of view, i wrote the following code......

IWDRadioButton button=(IWDRadioButton)view.createElement(IWDRadioButton.class,"radioButton1");

button.setText("abc");

IWDTransparentContainer tc=(IWDTransparentContainer)view.getElement("RootUIElementContainer");

tc.addChild(button);

when i run the application, it is displaying 500 internal error ......

java.lang.ClassCastException

at com.sap.tc.webdynpro.progmodel.context.Paths.getAttributeInfoFor(Paths.java:202)

at com.sap.tc.webdynpro.clientimpl.html.uielib.standard.uradapter.RadioButtonAdapter.setViewAndNodeElement(RadioButtonAdapter.java:165)

at com.sap.tc.webdynpro.clientimpl.html.uielements.adaptmgr.URAdapterManager.getAdapterFor(URAdapterManager.java:231)

at com.sap.tc.webdynpro.clientimpl.html.uielements.adaptmgr.URAdapterManager.getAdapterFor(URAdapterManager.java:64)

at com.sap.tc.webdynpro.clientimpl.html.uielib.standard.uradapter.FlowLayoutAdapter$Items.getControl(FlowLayoutAdapter.java:318)

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.ie6.FlowLayoutRenderer.renderFlowLayoutItemFragment(FlowLayoutRenderer.java:252)

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.ie6.FlowLayoutRenderer.renderFlowLayoutFragment(FlowLayoutRenderer.java:193)

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

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.base.AbstractRenderManager.render(AbstractRenderManager.java:294)

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.base.AbstractRenderManager.render(AbstractRenderManager.java:102)

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.ie6.ScrollContainerRenderer.renderScrollContainerFragment(ScrollContainerRenderer.java:516)

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.ie6.ScrollContainerRenderer.render(ScrollContainerRenderer.java:61)

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.base.AbstractRenderManager.render(AbstractRenderManager.java:294)

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.base.AbstractRenderManager.render(AbstractRenderManager.java:102)

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.base.UiWindowRenderer.render(UiWindowRenderer.java:45)

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.base.AbstractRenderManager.render(AbstractRenderManager.java:294)

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.base.AbstractRenderManager.render(AbstractRenderManager.java:102)

at com.sap.tc.webdynpro.clientimpl.html.client.HtmlClient.sendHtml(HtmlClient.java:555)

at com.sap.tc.webdynpro.clientimpl.html.client.HtmlClient.sendResponse(HtmlClient.java:346)

at com.sap.tc.webdynpro.clientimpl.html.client.HtmlClient.sendResponse(HtmlClient.java:253)

at com.sap.tc.webdynpro.clientimpl.html.client.HtmlClient.retrieveData(HtmlClient.java:157)

at com.sap.tc.webdynpro.clientserver.task.WebDynproMainTask.handleActionEvent(WebDynproMainTask.java:425)

at com.sap.tc.webdynpro.clientserver.task.WebDynproMainTask.execute(WebDynproMainTask.java:649)

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

at com.sap.tc.webdynpro.clientserver.cal.ClientManager.doProcessing(ClientManager.java:248)

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.doGet(DispatcherServlet.java:48)

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:95)

at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:160)

can anyone tell what is the problem in this.......

[Former Member · Accepted solution]

You need to bind its 'selectedKey' property to the context

[Former Member · Accepted solution]

hi Kanwalpreet,

I did not create any attribute in the context. can u briefly tell me how to do this from scratch

thanks,

vila

[Former Member · Accepted solution]

You can't create radiobutton without binding to the context because it needs to save value of 'selected key' property somewhere. Context is the only place for storing selectedKey property

Follow the below steps:

1. Create a ValueAttribute "radiobutt"

)

2.. Write the following in wdDoModifyView() method

IWDRadioButton button=(IWDRadioButton)view.createElement(IWDRadioButton.class,"radioButton1");

button.setText("abc");

button.bindselectedkey("radiobutt");

IWDTransparentContainer tc=(IWDTransparentContainer)view.getElement("RootUIElementContainer");

tc.addChild(button);

Message was edited by:

Kanwalpreet

Message was edited by:

Kanwalpreet