Transaction CKECP into Web Dynpro component

Hi,
I have created a dynpro component, and via the 'Code Wizard' have imported the different screens under the SAPLCK_ECP_GUI program. The GUI is all setup, but I have a problem in implementing the function modules that are behind each of the three select buttons. I actually thought that Dynpro would import this, because it imports calendar and F4 search functions etc in other fields.. Via debugging in the 'CKECP' transactions I have documented some function modules etc. I have tried calling some of these functions in an action that I have mapped to the correct pushbutton, but I cannot get it to work. It results in rabax_state error messages, and "cannot find functkonmodule" etc....
Does anyone have any tips in general about creating dynpro components from existing R/3 programs?
Thanks!
Best Regards
Arne Jakob
Edited by: Arne Jakob Hidle on Apr 1, 2008 11:12 AM

There is a exercise # 24 in BC400 document. Please follow it. This exercise helps to call your own function module. If you have more question, please reply to this mail.

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Debugging into web dynpro

Hi there,
How can I step into web dynpro component while debugging a process?
Regards,
Ricardo Giacomin

Hi
1.Enable remote debugging(external breakpoint) on function module
2. Use same UserID that enables debugging and used in JCo Connection.
3. Run your application, it will take you to SAP GUI screen when breakpoint found.
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/0e9a9d90-0201-0010-478e-991dbea73a30

Dynamic insertion of MIME object into a web dynpro component

Hi,
I want to dynamically insert a MIME object of type JPEG or type GIF into my web dynpro component at runtime.
I was unable to find the database table which contains the list of MIME objects for a particular web dynpro component.
Can you please help me out with this?
Thanks in advance,
Adithya
Moderator message: wrong forum, please have a look in the "Web Dynpro ABAP" forum.
Edited by: Thomas Zloch on May 23, 2011 9:55 AM

Hi Muzammil Bichoo ,
when you copy the wda component, it will be copied and will be in active state, once all the components are activated means, windows, views, everything will be available.
now create application for your component, if you have more than one window(interface view) select the one which you need for the application.
Regards
Sarath

No component usage created in enhanced web dynpro component

Hi experts,
I am facing the following problem:
I'd like to enhance a web dynpro component in order to add a popup window. The popup is triggered by the process_event method. So far everything works just fine.
But the popup needs to know some context attributes from the main component, and I cannot create a component usage in order to set the context mapping.
Does anybody know how to solve this issue?
Thanks and regards
Jan Phillip Höft

Hi!
Thanks for your answers first of all.
I need the popup to be a stand alone web dynpro component, so I guess the assistant class doesn't do the trick because I can not access it in the popup component.
The popup is called when the business object is saved. So that the user is asked to notify other users that the document has changed. In this popup the user should fill in the message and click a button to send it and close the popup.
So I tried the OBN approach as well but with two problems :
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2. The save event is not run through properly so the document stays locked by the user. But I didn't look into this yet.
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Anybody got an idea for this?
Thanks and regards
Jan Phillip Höft

Couldn't complete tutorial 'Integrating EJB 3.0 into Web Dynpro ...'

Hi All,
I am trying to complete the Integrating EJB 3.0 into Web Dynpro Using the EJB Model Importer tutorial that goes with SAP NetWeaver Composition Environment 7.1 SP3 Developer Studio.
Does anyone ever completed this tutorial because I have problems completing it. The result is very important for me because I need to use this technology for my essay.
In this tutorial you create a button that calls the method StudsBean.getStudent(String). In this method the object student is created and it will be returned. In several labels the information of the returned student should be displayed. But that doesnt happen, when I push the button no error occurs but the labels are still empty. When I try to debug the Enterprise Bean and Web Dynpro application I see that the method StudsBean.getStudent(String) is called and the propertys are set and the student object is returned, but still it isnt displayed.
After discussing this with a colleague I tried to search for a solution on the SDN and of course Google. First I thought I would be a bug but I only found 2 people with the same problem. I found it remarkable because its one of the key subjects of Java EE 5 and its a tutorial displayed in the welcome page of the Developer Studio.
So do you people think its a bug in WebDynpro? Because I am sure that I followed all the steps mentioned (a colleague checked it even).
Regards,
Sander

Hi Sander,
I guess, it's not a bug in Web Dynpro, maybe it's a bug in the tutorial
I tried something similar, but not following the tutorial and it works. I wasn't able to call the model from the view controller and I guess that's the problem. Take the code from the init-method of the view controller and put it to the component controller's init -method and the code inside the onActionGetStudent and put it into a method you create in the component controller, too. From onActionGetStudent just call this method in the component controller with some code like this:
wdThis.wdGet<your component controller's name>.<your method's name>;
Hope this helps
Kind regards
Stefanie

Is it possible to serialize a web dynpro component controller?

Hi,
Is it possible to serialize a web dynpro component controller and deserialize it for use?
I have one web dynpro application WDA1 for web dynpro component WDC1. And another web dynpro application WDA2 for WDC2 will be opened in a new window triggered by a button action in WDC1.
Iu2019d like to pass the object reference of WDC1 component controller to WDC2.
I first tried to use a static member of a class object but found out that even the static member is initialized and set in WDC1, itu2019s still initial when I access it in WDC2.
Then I searched the forum and found one article Passing Object ref to Webdynpro Application while calling from BSP screen .
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I tried serialization using the following code, but when itu2019s deserialized, the result is initial.
Can anyone share some ideas on this?
Serialize
data: ostream type string,
           xslt_err type ref to cx_xslt_exception.
***** serialize model class
try.
      call transformation id
      source model = wd_comp_controller
      result xml ostream.
    catch cx_xslt_exception into xslt_err.
endtry.
Deserialize
    data: istream type string,
          xslt_err type ref to cx_xslt_exception.
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    try.
        call transformation id
        source xml istream
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When you say new window, I assume you mean new browser window. This is a separate user session then. This is why the singleton pattern doesn't work. Have you considered using a new dialog window instead of a new browser window. It will be modal, but will share the same user session as the parent window.
>Why do you choose this approach over cross-component usage ? component usage is the way webdynpro components are >to be reused.
>You can also consider using Singleton OO pattern class to share data between these two components.
Neither of these approaches will work if you are using separate browser windows. Such an approach results in two separate user sessions (perhaps even running on different application servers depending upon how you have load balancing setup) and therefore can't share data using either of these approaches.
In general the idea of serialization and then writing the string ito a server cookie or other database table is sound. I don't think you should try and serialize the component controller, however. Serialization only saves and restores public attributes - not protected or private ones. So in general a class has to be designed for serialization. The component controller is much too complex and wasn't designed for such an operation.
I would suggest instead extracting the data you want to share out of component controller or context and serializing it into a custom class and passing that to the other component.

Web Dynpro component - Flat file upload

Hi,
We have a requirement to upload a flat file to Planning cube (real time cube) through Web Dynpro component.
Web Dynpro component which we have developed is able to read the records from the flat file.
Now, the issue is u201CHow can we save the records read from the flat file to planning cubeu201D?
If anyone has worked on the similar requirement, pls reply. Thanks in advance.
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Aggregation level is made on Multiprovider which has 2 underlying cubes (One is realtime and other one is standard).
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Regards,
Ankur

You can deploy solution provided by Marc Bernard within following SDN's contribution:
[u201CLoad a File into SAP NetWeaver BI Integrated Planningu201D |http://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/90cef248-29e0-2910-11bb-df8dece7e22c]
This uses webdynpro functionality.

Web Dynpro Component cannot be found in list when Creating Callable Object

Hi All,
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    But in the step of choosing the web dynpro component as a callable object, I cannot find the one I created.
    Any suggestion or idea?
    Thanks,
YiNing

Hi,
Check out these links :
-> Composite Application Framework Tutorial Center
SAP Composite Application Framework - CAF Tutorial Center [original link is broken]
->Creating a Callable Object: Composite Application Web Dynpro Component https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/ac4c81d1-0c01-0010-adb0-bb14220343c2
Regards,
Indu
Edited by: Indu Garg on Feb 28, 2008 12:33 PM

Access files from Web Dynpro component

Hi,
I need to access files from a Web Dynpro component but I couldn't find any information. Has anyone done this?
My questions are:
1. Can I pack these files into the WD component so they can be deploy together?
2. And what API should I use to access these files?
Thanks,
Kizza

Hi,
You can follow the Creating the JCO connections in the Content Administrator section in the following
help.sap.com [link|http://help.sap.com/saphelp_nw70/helpdata/EN/f8/bdfe80d9a3b048a5fb32a7d149774e/content.htm].
For the RFC_ERROR_COMMUNICATION error, you can check if the system sapmsR3D is defined in your
SAP Logon pad or in the hosts file under Drivers -> etc folder.
Regards,
Alka.

Calling session bean's business method through web dynpro component

Hi All,
Can anybody tell me how to call a session bean's methods through a web dynpro WITHOUT java-model or web service model ??
I have following scenario:-
1. Stateless Session bean having two business methods
2. Web Dynpro component
3.Now i want to call business methods without using any model. I have got following piece of code but I dont know how to go about it.
4.Where do i have to set JNDI name for session bean? which interface will be looked for?
5. Do I have to declare public part for EJB DC? If yes, how?
//This is inside web dynpro component
InitialContext context = new InitialContext();
o = context.lookup(JNDIName);
TestSessionbeanHome homeRef = (TestSessionbeanHome) PortableRemoteObject.narrow( o,
TestSessionbeanHome.class);
TestSessionbean beanRef = homeRef.create();
<returnValue> = beanRef.<ejb method name>
Please help to get a step-by-step approach to this case.
Thanks and regards,
Amey Mogare

Hi,
If I comment out the part that is using session bean's business method, DC is building fine.
And if I uncomment, then compiler is unabl eto resolve business method(s).
And i would like to mention that my EJB + J2EE App DC is building properly, but it havent yet deployed properly as I am waiting for data-source-alias name prefix to be configured by ERP team. So will this be a reason why Web Dynpro DC is not able to resolve business methods ??
Because Web Dynpro DC is able to resolved all interfaces of Session bean and entity bean. But when it comes to business method, its not able to resolve.
Any more ideas why it is not happening?
Pls help.
Now i went through some forum posts regarding this and found that we also need to add EJB DC to Java Build Path for WebDynproDC>Properties>Java Build Path.
I did this and now it is able to resolve business methods and DTOs as well. So to summarize I did following:-
1. Added EJB DC (complete DC) as a Used DC to Web Dynpro DC with Buid-n-Deploy-n-Run time dependency
2. Added Sharing reference of J2EE application DC to Web Dynpro DC -->Properties
This reference I constructed as follows:-
<vendorname>/<name of j2ee application as appearing under display name tag in application.xml (replacing '/' with '~')>
So my Sharing Reference becomes:- <vendorname>/reqpstapscreqpstapja_reqid
3. Added EJB DC to Java Build Path in Web Dynpro DC's properties
4. Then I added following piece of code to get object of SessionBean class
InitialContext context = new InitialContext();
Object o = context.lookup("java:comp/env/ejb/SessionRequestIDBean");
SessionRequestIDHome homeRef = (SessionRequestIDHome) PortableRemoteObject.narrow(o, SessionRequestIDHome.class);
SessionRequestID beanRef = homeRef.create();
beanRef.<business method>
But After doing this I am facing another problem :-
The build fails saying it is not able find the package for DTOs. But when I see the Component Controller's code it is not showing any red or yellow marks.
Can anybody pls help me out here?
Thanks and regards,
Amey Mogare

Couldn't complete tutorial u0091Integrating EJB 3.0 into Web Dynpro ... '

Hi All,
I am trying to complete the Integrating EJB 3.0 into Web Dynpro Using the EJB Model Importer tutorial that goes with SAP NetWeaver Composition Environment 7.1 SP3 Developer Studio.
Does anyone ever completed this tutorial because I have problems completing it. The result is very important for me because I need to use this technology for my essay.
In this tutorial you create a button that calls the method StudsBean.getStudent(String). In this method the object student is created and it will be returned. In several labels the information of the returned student should be displayed. But that doesnt happen, when I push the button no error occurs but the labels are still empty. When I try to debug the Enterprise Bean and Web Dynpro application I see that the method StudsBean.getStudent(String) is called and the propertys are set and the student object is returned, but still it isnt displayed.
After discussing this with a colleague I tried to search for a solution on the SDN and of course Google. First I thought I would be a bug but I only found 2 people with the same problem. I found it remarkable because its one of the key subjects of Java EE 5 and its a tutorial displayed in the welcome page of the Developer Studio.
So do you people think its a bug in WebDynpro? Because I am sure that I followed all the steps mentioned (a colleague checked it even).
Regards,
Sander

Hi Vesselin,
Thank you for the quick replay, this is the code I'm using:
public void onActionGetStudent(com.sap.tc.webdynpro.progmodel.api.IWDCustomEvent wdEvent )
    //@@begin onActionGetStudent(ServerEvent)
          try {
              // executes the corresponding method on the session facade
              wdContext.currentRequest_StudsLocal_getStudentElement().
              modelObject().execute();
              // forces Web Dynpro to re-create the Request model object
              // in order to clear the InputField
             wdContext.nodeRequest_StudsLocal_getStudent().invalidate();
              // updates the UI elements bound to the Response node
              wdContext.nodeResponse().invalidate();
              //Code for trying something out
              //wdContext.nodeReturn().invalidate();
              //wdContext.nodeAddress().invalidate();
           } catch (Exception e) {
              throw new RuntimeException(e);
Have you tried this example yourself, or is replay based on experience?
Kind Regards,
Sander

Transport issue when copying a web dynpro component

Hello All.
I have a web dynpro component lets say ZTest and now I want to copy this, I gave the new one a different name i.e. ZFINAL, now when I copied, it asked me for the trasnport and when I asked to create a new transport I got this message "Class ZIWCI_ZFINAL does not exist" and then I clicked the green arrow again and it created a transport for me. After this process I activated my web dynpro component successfully, my web dynpro component has 3 views and 3 windows. When I looked at my new transport (for ZFinal), I only saw three tasks attached to teh transport i.e. 1. Interface 2. Info Object from the MIME Repository and 3. Web Dynpro Component but I didn't see Controller (Web Dynpro), Definition (Web Dynpro) and View (Web Dynpro) attached to my transport. Now I wonder when I release my transport to Q I may have issues.
Note: My old trasnport (which has Ztest)has all the missing objects: (Web Dynpro), Definition (Web Dynpro) and View (Web Dynpro)

I resolved it myself.. I had to write the transport entry manually for the views and windows and even the component controller definition.

The Web Dynpro component cannot be generated due to serious (syntax) errors

Hi everybody,
While I was developing a web dynpro application, I had an error but I couldn't understand this error. Before I took this error message, only I changed bound one context node to another context node in a RadioButtonGroupByKey.Therefore, when I pushed activate button, I took an error message.This error message said "The Web Dynpro component cannot be generated due to serious (syntax) errors". What does it mean ? How can I find out where is the error in the application. Also, I think the reason of this error message is about a BC problem. I am waiting for your comment urgently.

Hi ,
Just delete the context (by using the context binding) and bind the field with the correct node and try to activate .
One more suggestion is that after deleting the binding and before binding to other node check it that whether that binding was properly deleted or not.Some times its not deleting the binding.
Hopely my suggestion may work.
Regards,
Satya

How can we call methods of one web dynpro component in another one

Hello Team,
How do I call one Web Dynpro component methods in another Web Dynpro component.
How do we use public parts.
thanks

Hi,
You want to use Comp2's getData() method in Comp1
If both the WebDynpro components are in the same DC:
1. Create a wrapper method (with the same signature) in the Comp2's Interface controller. And invoke the Component contorller's getData() method in this method using the below code.
wdThis.wdGetComp2Controller.getData()
2. Now Go to the Comp1 and right click on UsedWebDynproComps and add this Comp2 as a UsedWebDypro component.
3. Now go to the Component Controller of Comp1 and in properties tab add the usage declaration of Interface controller of Comp2.
4. Now using this below code you can access the method of InterfaceController of Comp2.
wdThis.wdGetComp2Interface().getData();
If both the WebDynpro components are in different DCs:
1. Right click on Comp2 and select Add to public part on Comp2 in DC2.
2. Now Add this public part in DC1 UsedDCs.
Now repeat the above stpes 1...to..4. of "If both the WebDynpro components are in the same DC" same.
Regards,
Charan

Changes in standard e-rec web dynpro component

Hi ,
I need to make some changes in standard e-rec web dynpro component. Needed to know what approach needs to be followed for the same. Can I make changes in the standard itself or do I need to copy the standard component and make changes in the Z component.
Thanks in anticpation.
Regards
Nidhi Jain

Hi Nidhi,
Its better to make changes in the Enhancement Framework itself.It will be too complex to make it to Z applications since there will be lot of dependent objects involved. I was also in the state of dilema when i was about to make changes to the standard E-travel applications using ABAP webdynpro(EHP2) and finallly i was able to meet all the customer requirements using Enhancement Framework and yesterday the UAT ended successfully..:-).
I have also implemented the e-recruiting using BSP in my last project.So i am able to give the above suggestion to you.
Since E-rec applications will have lot of methods, you can be able to meet all the changes in the Pre and the Post exit methods itself.
All the Best.
Thanks,
Rajkumar.S

Transaction CKECP into Web Dynpro component

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