Web dynpro component usage

Hi,
Can anybody provide me some useful links or some tutorials regarding web dynpro component usage.
Thanks in advance.

Hi,
Creating webdynpro component
http://help.sap.com/saphelp_nw04/helpdata/en/20/1d353ed106ec2ce10000000a114084/frameset.htm
Web dynpro tutorials
http://help.sap.com/saphelp_nw04/helpdata/en/e9/1fc0bdb1cdd34f9a11d5321eba5ebc/frameset.htm
Try this link
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/webcontent/uuid/28113de9-0601-0010-71a3-c87806865f26?rid=/library/uuid/49f2ea90-0201-0010-ce8e-de18b94aee2d
Simplest Example in Java Webdynpo
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/library/webas/a-c/creating%20your%20first%20web%20dynpro%20application.pdf
Simplest Example in ABAP Webdynpro
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/cb243c45-0801-0010-eb9c-88669007f130
Web Dynpro Sample Applications and Tutorials
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/webcontent/uuid/28113de9-0601-0010-71a3-c87806865f26?rid=/library/uuid/49f2ea90-0201-0010-ce8e-de18b94aee2d
Search in Webdynpro forum.
do reward if it helps
Thanks,
Reddy.

Similar Messages

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 :
1. I cannot close the popup component by coding (button click) because it has no direct parent component
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.
So it would be perfect to have an embedded popup component which is based on a stand alone web dynpro application so it can be closed properly but it need at least access to the guid of the main component.
Anybody got an idea for this?
Thanks and regards
Jan Phillip Höft

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 .
The recommended way is to serialize the object reference and store in a DB table, later on read it out and deserialize it for use.
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.
    istream = ls_db_sel-obj.
    data lr_wdc type REF TO ZIWCI_BY_WDC_SERIALIZE.
    try.
        call transformation id
        source xml istream
        result model = lr_wdc.
      catch cx_xslt_exception into xslt_err.
    endtry.

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.

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

Dynamic Use of web dynpro component

Hi,
How can I dynamically use the web dynpro component for display in one component with out using Wdb Dynpro Interface component?
I want to give user a dash board which is configurable by the user.
Thanks and regards,
Pradip

>
Pradip R[https://cw.sdn.sap.com/cw/docs/DOC-37733
> Hi Bhaskar,
> My components are not in used componenty. In runtime user will search the component in server and shall embedd in my application. So component usage is also dynamic.
> Any suggestion?
> Regards,
> Pradip
Hi,
see the link here
[https://cw.sdn.sap.com/cw/docs/DOC-37733|https://cw.sdn.sap.com/cw/docs/DOC-37733].
as advised, you create a usage group for dynamic components, add component usages to the group based on your conditions.

Warning and Error encounter while building web dynpro component

Hi,
I encounter this while building the web dynpro component. I am currently using NWDI 2004s SPS11. can advise? Thanks in advance
[Warning]: Path in Classpath for file webdynproadmin.jar not found.
[Warning]: Path in Classpath for file webdynproclientserver.jar not found.
[Warning]: Path in Classpath for file webdynpromodel_dynamicrfc.jar not found.
[Warning]: Path in Classpath for file webdynpromodelimpl.jar not found.
[Warning]: Path in Classpath for file webdynproprogmodel.jar not found.
[Warning]: Path in Classpath for file webdynproruntime_designtime_coupling_api.jar not found.
[Warning]: Path in Classpath for file webdynproruntime_designtime_coupling.jar not found.
[Warning]: Path in Classpath for file webdynproruntime_repository_pmr.jar not found.
[Warning]: Path in Classpath for file webdynproruntime_repository.jar not found.
[Warning]: Path in Classpath for file webdynproservices.jar not found.
[Warning]: Path in Classpath for file SapDictionaryTypeServices.jar not found.
[Warning]: Path in Classpath for file SapDictionaryTypesRuntime.jar not found.
[Warning]: Path in Classpath for file SapMetamodelWebdynproContent.zip not found.
[Warning]: Version for file webdynproadmin.jar not found.
[Warning]: Version for file webdynproclientserver.jar not found.
[Warning]: Version for file webdynpromodel_dynamicrfc.jar not found.
[Warning]: Version for file webdynpromodelimpl.jar not found.
[Warning]: Version for file webdynproprogmodel.jar not found.
[Warning]: Version for file webdynproruntime_designtime_coupling_api.jar not found.
[Warning]: Version for file webdynproruntime_designtime_coupling.jar not found.
[Warning]: Version for file webdynproruntime_repository_pmr.jar not found.
[Warning]: Version for file webdynproruntime_repository.jar not found.
[Warning]: Version for file webdynproservices.jar not found.
[Warning]: Version for file SapDictionaryTypeServices.jar not found.
[Warning]: Version for file SapDictionaryTypesRuntime.jar not found.
[Warning]: Version for file SapMetamodelWebdynproContent.zip not found.
Error The project was not built due to "Resource already exists on disk: / /bin/ProjectProperties.wdproperties.". Fix the problem, then try refreshing this project and rebuilding it since it may be inconsistent.
And have this error encounter:
Development Component Build (2007-07-02 15:14:00)
Component name: timeoff/gp/ui
Component vendor: test
SC compartment: test.sap.com_CAF-TIMEOFF-TST_1
Configuration: Tst_CAFDEV_D
Location: Tst_CAFDEV_D
Source code location: cocomo@cocomo
DC root folder: D:\projects\ExitMgt\1\DCs\test\timeoff\gp\ui\_comp\
DC type: Web Dynpro
Host: cocomo
DC Model check:
   All used DCs are available locally
   ERROR: Check for used DCs failed: Illegal component usage: compartment "test.sap.com_CAF-TIMEOFF-TST_1" does not use compartment "sap.com_SAP_JTECHS_1" of used DC "sap.com/tc/cmi"; using DC: test/timeoff/gp/ui(test.sap.com_CAF-TIMEOFF-TST_1)
   Build failed with errors.

Hi,
Make sure you have all these jars located in the folder C:\Program Files\SAP\IDE\IDE70\eclipse\plugins\com.sap.tc.webdynpro.runtime_2.0.0\lib.
If they are not there, search for them in the plugins folder. They should be available at some other location. Copy them to the folder I mentioned above. Or you can modify the class path to point to the existing location.
Thanks
Ram

Web dynpro component interface, can't create a instance

Hi guru,
I have created a web dynpro component interface, and implemented it through some components.
But when I use the interface in another component, there comes a runtime error. The following is the error message.
Error when Creating Component YHREFM_OBJSEL_INTERFACE. YHREFM_OBJSEL_INTERFACE Is a Component Interface, Therefore, an Instance Cannot Be Created. Name of Component May Not Be Specified. (Using Component: YHREFM_PRINT_FORM_SE, Component Usage: USAGE1)
Need your help!
Best Regards,
Guo Guo Qing

Hi,
I have found the cause of the problem. I have mapped some context in the component interface to componenet_A. Then I active component_A, and test it. Then the exception on the top of the Thread is raised.
What's wrong with it? Could someone give me a solution?
Thank you very very much.
Best Regards,
Guo Guo Qing

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

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

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

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.
Note : We have a planning sequence which will be executed on the click of UPLOAD button.
This planning sequence has a filter on Infoprovider (cube which we are using for planning) and a planning function of type u201CFile uploadu201D in which we have defined the flat file format.
Aggregation level is made on Multiprovider which has 2 underlying cubes (One is realtime and other one is standard).
Is there any function module in which we can pass the name of the flat file so that it will be uploaded in planing cube?
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.

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

SRM 7.0 find transparent table name from Web dynpro Component

Hi ,
I am trying to find the transparent table name from Web dynpro component dictionary structure. I am working in SRM 7.0. Please let me know how to find the transpartent table for a field.
Thanks,
Monica

hi,
your question is very unclear and does not relate to performance.
SRM uses webdynpro ABAP so the recommendation will not help.
Do you need a technical UI element?
Or the application table where the business data of an UI is stored???
If it is the later, then you can use the SQL trace, change to element you are interested in, and trace it. The table should appear in the trace in connection which an UPDATE command. Still a bit cimbersome.
Siegfried

Problem in changing CAPTION (header) of a View in Web dynpro component

Hi All,
I want to change the Caption (header) text of a View in Web dynpro component. But when i transport it the changes are not reflecting in other systems.
Also when i activate the Web dynpro component in development system, it issues a message "The text belongs to package $TMP". But the Web dynpro component is assigned to a custom package.
Any pointers to resolve this is appreciated.
Thanks in advance.
Regards,
Navin.

Hi
Please check the 'text' property of the caption.
e.g : If you are using OTR to bind the text then it might be possible that the OTR text belongs to $TMP package.
Please explain how have you binded the caption ?
Regards,
Puneet

Web dynpro component usage

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