table Onlead Select action leads to PopUp Window

[Former Member]

Hi

Can any tell me how create a popupwindow when we select a row in Table? I reffered popup windows tutorials and coded but its giving null pointer exception.

Can anybody help me?

[Former Member · Accepted solution]

Hi,

Can you please paste your code here?

Thanks and Regards

Avijit

[Former Member · Accepted solution]

Hi Avijit Dhar

This is my code

IWDWindowInfo windowInfo = (IWDWindowInfo)wdComponentAPI

.getComponentInfo()

.findInWindows("PopupWindow");

// create the ?PopupWindow?

IWDWindow window = wdComponentAPI.getWindowManager().createWindow(windowInfo, true);

// set the WindowPosition on the screen

window.setWindowPosition(300, 150);

// and show the window

window.open();

// Save WindowInstance in Context

wdContext.currentPopupElement().setWindowInstance(window);

I placed this code inside Onlead select action.

I also reffered tutorials sent by Ashwin. I followed same.

Please suggest me if there is any mistake in code.

[former_member186016 · Accepted solution]

Hi,

Can you please post the stack trace showing NullPointerException.

Also post the code at that line.

Ensure that before calling wdContext.currentPopupElement() [in last line in piece of code posted by you ] you have initialized the PopupElement.

Regards,

Ashwani Kr Sharma

[Former Member · Accepted solution]

HI Ashvani

My code in first view is

public void onActionleadselect(com.sap.tc.webdynpro.progmodel.api.IWDCustomEvent wdEvent )

{

//@@begin onActionleadselect(ServerEvent)

// Window PopUp Window

IWDWindowInfo windowInfo = (IWDWindowInfo)wdComponentAPI

.getComponentInfo()

.findInWindows("PopUp");

// create the PopUp Window

IWDWindow window = wdComponentAPI.getWindowManager().createWindow( windowInfo, true);

// set the WindowPosition on the screen

window.setWindowPosition(300, 150);

// and show the window

window.open();

// Save WindowInstance in Context

wdContext.currentPopUpElement().setWindowInstance(window);

//@@end

}

My stack trace is

java.lang.NullPointerException

at com.stepan.comp.DashBoardView.onActionleadselect(DashBoardView.java:172)

at com.stepan.comp.wdp.InternalDashBoardView.wdInvokeEventHandler(InternalDashBoardView.java:204)

at com.sap.tc.webdynpro.progmodel.generation.DelegatingView.invokeEventHandler(DelegatingView.java:87)

at com.sap.tc.webdynpro.progmodel.controller.Action.fire(Action.java:67)

at com.sap.tc.webdynpro.clientserver.window.WindowPhaseModel.doHandleActionEvent(WindowPhaseModel.java:420)

at com.sap.tc.webdynpro.clientserver.window.WindowPhaseModel.processRequest(WindowPhaseModel.java:132)

at com.sap.tc.webdynpro.clientserver.window.WebDynproWindow.processRequest(WebDynproWindow.java:335)

at com.sap.tc.webdynpro.clientserver.cal.AbstractClient.executeTasks(AbstractClient.java:143)

at com.sap.tc.webdynpro.clientserver.session.ApplicationSession.doProcessing(ApplicationSession.java:299)

at com.sap.tc.webdynpro.clientserver.session.ClientSession.doApplicationProcessingStandalone(ClientSession.java:759)

at com.sap.tc.webdynpro.clientserver.session.ClientSession.doApplicationProcessing(ClientSession.java:712)

at com.sap.tc.webdynpro.clientserver.session.ClientSession.doProcessing(ClientSession.java:261)

at com.sap.tc.webdynpro.clientserver.session.RequestManager.doProcessing(RequestManager.java:149)

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:401)

at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.handleRequest(HttpHandlerImpl.java:266)

at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:387)

at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:365)

at com.sap.engine.services.httpserver.server.RequestAnalizer.invokeWebContainer(RequestAnalizer.java:944)

at com.sap.engine.services.httpserver.server.RequestAnalizer.handle(RequestAnalizer.java:266)

at com.sap.engine.services.httpserver.server.Client.handle(Client.java:95)

at com.sap.engine.services.httpserver.server.Processor.request(Processor.java:160)

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)

[Former Member · Accepted solution]

What is "currentPopUpElement()"? To store the window instance, you don't need a node but an attribute, say "PopupWindow":

wdContext.currentContextElement().setPopupWindow( windowInstance );

Or set cardinality=1:1 and selection=1:1 for your node "PopUp".

Armin

[Former Member · Accepted solution]

Thanks a lot by setting cardinality I was able to fix my problem. Now its working fine.

Can you tell how to close Popup? I added custom button and action with distroy window method. But I am getting exception.

[Former Member · Accepted solution]

Please post the code of the event handler and the stacktrace.

It should look like

void onActionClosePopup(...)
{
  IWDWindow win = wdContext.currentPopUpElement().getWindowInstance();
  if (win != null)
  {
    wdContext.currentPopUpElement().setWindowInstance(null);
    win.destroy();

  }
}

Armin

[Former Member · Accepted solution]

Thanks for quick reply but its not working (No error) when I added this in PopUp window.

Where should I write this code?

[Former Member · Accepted solution]

Add a "Close" button to the view that is embedded in your popup window. Assign an action "ClosePopup" to this button and put the code in the action handler.

Put the node "PopUp" in a controller that is visible from both views, the view where the popup is opened and the popup view itself. This can be achieved by putting the node into the component controller context and mapping it from both view controllers.

Armin

[Former Member · Accepted solution]

Thanks my problem resolved. So I am closing this thread.

[former_member186016]

I hope you are referring to the tutorial at following location:

https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/49f2ea90-0201-0010-ce8e-de18b94a...

Most probably the value read by you from Table is not correct and it is null. Hence the null pointer exception is coming.

Did you tried the application is at following location: [It is application from same tutorial] It works perfect

https://www.sdn.sap.com/irj/sdn/softwaredownload?download=/irj/servlet/prt/portal/prtroot/com.sap.km...

Regards,

Ashwani Kr Sharma

[Former Member]

Ya no esta el enlace de descarga