WebDynPro Basics and Tutorial

Hi Experts,
I want to learn Webdynpro ABAP, please provide me the basic info and any tutorial or any material.
Thanks in Advance,
Praveen

Use the following link
Tutorial ALV
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/webcontent/uuid/60ea94e5-0901-0010-c3bb-aad5ea9620d8 [original link is broken]
Web Dynpro Java Foundation What's new in SAP NetWeaver 2004S
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/c29a4d25-0c01-0010-50ae-e69d0e1c61f3
SAP Web Dynpro Overview
http://wendtstud1.hpi.uni-potsdam.de/sysmod-seminar/SS2005/presentations/12-WebDynpro-Overview.ppt
Web Dynpro General Concepts
https://admin.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/webcontent/uuid/30ea953b-8e57-2910-4e85-f7be60b00407 [original link is broken]
Web Dynpro
http://help.sap.com/saphelp_nw2004s/helpdata/en/15/0d4f21c17c8044af4868130e9fea07/frameset.htm
Web Dynpro for ABAP: Tutorials for Beginners
Web Dynpro for ABAP: Tutorials for Beginners [original link is broken]
Web Dynpro Architecture
http://help.sap.com/saphelp_nw04/helpdata/en/a5/1a1e3e7181b60ae10000000a114084/content.htm
Web Dynpro User Interface Design
https://www.sdn.sap.com/irj/sdn/webdynpro?rid=/webcontent/uuid/ce44a14c-0a01-0010-af89-d7dbd944f176 [original link is broken]
Getting Started with Web Dynpro Java
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/webcontent/uuid/28113de9-0601-0010-71a3-c87806865f26?rid=/webcontent/uuid/8921447c-0501-0010-07b4-83bd39ffc7be [original link is broken]
Developing ABAP applications using Web Dynpro Configuration Scenario
http://www50.sap.com/businessmaps/8729920B31E343F099B71340B15F06DB.htm
http://www.sapforum.co.kr/TECHDAY07/download/9.%20SAP%20WebDynpro_%EA%B9%80%ED%98%9C%EC%84%AD.pdf
How-to add a custom Web Dynpro iView to the MSS Employee Profile (ECC 6.0)
https://www.sdn.sap.com/irj/sdn/wiki?path=/display/profile/how-toaddacustomWebDynproiViewtotheMSSEmployeeProfile(ECC+6.0)&focusedCommentId=55238
Developing Java Applications using Web Dynpro Configuration Scenario
http://www50.sap.com/businessmaps/8F5B533C4CD24A59B11DE1E9BDD13CF1.htm
Integrating Web Dynpro and SAP NetWeaver Portal Part 1: Creating Web Dynpro-Based Portal Content
http://www.octavia.de/fileadmin/content_bilder/Hauptnavigation/SAP_NetWeaver/WebDynpro/Tutorial_1.pdf
The Structural Concepts of Web Dynpro Components
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/a048387a-0901-0010-13ac-87f9eb649381
Web Dynpro:Context Mapping & Model Binding
http://wendtstud1.hpi.uni-potsdam.de/sysmod-seminar/SS2005/presentations/14-Web_Dynpro_dataflow.pdf
Web Dynpro:Getting Involved
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/c193252d-0701-0010-f5ae-f10e09a6c87f
Web Dynpro for ABAP
http://www.vnsg.nl/temp/508773747/A1-WDA_Themadag.pdf
http://www.octavia.de/fileadmin/content_bilder/Hauptnavigation/SAP_NetWeaver/WebDynpro/Web_Dynpro_Part_IV.pdf
Web Dynpro for ABAP in SDN
https://www.sdn.sap.com/irj/sdn/developerareas/webdynpro?rid=/webcontent/uuid/512040e1-0901-0010-769c-c238c6ca35d9 [original link is broken]
Developing ABAP Applications Using Web Dynpro
http://help.sap.com/saphelp_nw2004s/helpdata/en/42/d41b25d2216babe10000000a1553f6/frameset.htm
Web Dynpro ABAP: Development in Detail
http://help.sap.com/saphelp_nw2004s/helpdata/en/03/0048413e466e24e10000000a155106/frameset.htm
WDA Sample programs & tutorials
https://www.sdn.sap.com/irj/sdn/developerareas/webdynpro?rid=/library/uuid/49f2ea90-0201-0010-ce8e-de18b94aee2d
Web Dynpro ABAP Demonstration Videos
/people/thomas.jung/blog/2006/06/20/web-dynpro-abap-demonstration-videos
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/webcontent/uuid/28113de9-0601-0010-71a3-c87806865f26?rid=/webcontent/uuid/fed073e5-0901-0010-4eb4-c9882aac7b11 [original link is broken] [original link is broken]
As the name suggests Web Dynpro for ABAP uses exactly the same meta model as its cousin Web Dynpro for Java. A Web Dynpro component, a Web Dynpro view, a Web Dynpro model, a Web Dynpro controller have the same semantics both for ABAP and Java. The main difference is the designtime environment, the development infrastructure and the runtime environment.
The designtime environment is properly embedded in the ABAP Workbench where Web Dynpro artifacts are simply a new category like BSP applications or classical dynpro based applications before. Also no surprises regarding the development infrastructure. The correction and transport system keeps track on all changes that are done, versions them and helps to propagate the Web Dynpro application from development to production like you would do with ordinary BSP or dynpro-based applications.
Last not least the execution platform is the ABAP server that produces application content ready to be integrated in the NetWeaver Portal seamlessly. Features like portal eventing can be used between applications written in ABAP or applications developed with Java.
First of all start doing SAP SDN tutorials .
Create some compenents with BAPI , Component usage and ALV .
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/02e1fa45-0801-0010-10a0-f1cf47e8c943
/people/marilyn.pratt/blog/2005/12/20/web-dynpro-for-abap
Try to Download demo tutorials from SDN library & Try to search WebDynpro ABAP WebLogs .
Wait not just that SAP has provided you with ample demo example of WD ABAP already bundled with SAP . Just Try out Components starting with WDR . I can tell you few like WDR_TEST_EVENTS ( It shows how every UI elments to use )
See packages like SWDP_DEMO , SALV_WD_DEMO
refer to these links
Web Dynpro ABAP: Development in Detail
http://help.sap.com/saphelp_nw2004s/helpdata/en/03/0048413e466e24e10000000a155106/frameset.htm
WDA Sample programs & tutorials
https://www.sdn.sap.com/irj/sdn/developerareas/webdynpro?rid=/library/uuid/49f2ea90-0201-0010-ce8e-de18b94aee2d
Web Dynpro ABAP Demonstration Videos
/people/thomas.jung/blog/2006/06/20/web-dynpro-abap-demonstration-videos
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/webcontent/uuid/28113de9-0601-0010-71a3-c87806865f26?rid=/webcontent/uuid/fed073e5-0901-0010-4eb4-c9882aac7b11 [original link is broken] [original link is broken]
This is a video blog which demonstrates all webdynpro topics.
/people/thomas.jung/blog/2006/06/20/web-dynpro-abap-demonstration-videos
Reward points..

Similar Messages

Encountering Problems with Basic Sound Tutorial

Hello everyone,
I am encountering problems with a basic sound tutorial. I am absolutely confused as to what the problem may be because the code is so simple, and is essentially copied from the textbook. I am convinced that I have done something very silly but cannot see it.
I have attempted to run this in an appletviewer, Firefox and Internet Explorer. I have attempted to launch it from both a .class file and a .jar file. I have uninstalled and offline installed the JDK and JRE and successfully tested the new installations.
The audio file I am attempting to load and play is an .AU (Sun/Next 8-bit u-law) audio file I created in Audacity. It is located in the same folder as the AudioApplet.class file.
My sound system is defintely on, since I have listened to music all day. I have attempted running the program with Media Player closed.
package edu.myuniversityid.sandbox;
import java.applet.Applet;
import java.applet.AudioClip;
* @author Ibuki
public class AudioApplet extends Applet
     * Initialization method that will be called after the applet is loaded
     * into the browser.
    public void init()
        super.init();
        AudioClip ac = this.getAudioClip(this.getDocumentBase(), "sample.au");
        ac.play();
}The code compiles fine, however absolutely I get a small white window when it is run. No sound.
Thankyou for your time.
Regards,
Ibuki.
PS. I am sure this worked before the university forced me to update my version of Windows to SP2. Hence, the reason for reinstalling Java. Twice.
Edited by: Ibuki on Jan 31, 2008 11:09 AM becasuse: Added a PS.

I have attempted this alternative, without success:
    public void init()
        try
            super.init();
            URL url = new URL(this.getDocumentBase(), "sample.au");
            AudioClip ac = this.getAudioClip(url);
            ac.play();
        catch (MalformedURLException ex)
            Logger.getLogger(AudioApplet.class.getName()).log(Level.SEVERE, null, ex);
    }The sample.au is definetly in the correct directory. Both File Explorer and NetBeans confirm this.
Edited by: Ibuki on Jan 31, 2008 11:59 AM
I have discovered a temporary solution that works in the applet viewer. The applet will load and plays the correct music perfectly. However, using this code it is not working when I try to deploy it using a web browser (MSIE and FF)!
public void init()
        super.init();
        AudioClip ac = this.getAudioClip(this.getClass().getResource("sample.au"));
        ac.play();
Edited by: Ibuki on Jan 31, 2008 12:12 PM
Eureka!
Having worked in the applet viewer I managed to get it working in the web browser by simply packaging my SoundApplet.class and sample.au into a .jar archive.
<html>
     <body>
          <applet code="edu.myuniversityid.sandbox.AudioApplet.class" archive="dist/AudioApplet.jar">Unfortunately, this applet content cannot be displayed on this web page because your current browser does not support Java SE 6! Please <a href="http://www.java.com/">update your version of Java</a>.</applet>
     </body>
</html>
public void init()
        super.init();
        AudioClip ac = this.getAudioClip(this.getClass().getResource("sample.au"));
        ac.play();
    }Thankyou everyone.
This thread can be closed if applicable. I'm not aware of the current moderation policy on this forum.
Edited by: Ibuki on Jan 31, 2008 12:12 PM

Webdynpro java and oracle DB connection..

Hi,
I have a good knowledge of WD (web dynpro java) projects having ECC as backend as i have done lot of projects where ECC is backend and WD JAVA is front end.
but in my new project i have wd java as front end but my backend is oracle DB. I want to know how to create/setup connection betwen webdynpro java and oracle DB, how to proceed on this ? wat all settings I have to do in VA (visual admin) and all.
please let me know how to proceed on this. Any document/tutorial on this will be very helpful..

Hi Rahul,
Create a DataSource to the oracle db in Visual Admin, give the datasource an alias name and connect to the db from WebDynpro by calling the alias name.
These document might be useful:
[http://help.sap.com/saphelp_nw70/helpdata/en/c0/3ad4d5cdc66447a188b582aad537d3/frameset.htm]
[SAP Note 867176|https://websmp130.sap-ag.de/sap(bD1lbiZjPTAwMQ==)/bc/bsp/spn/sapnotes/index2.htm?numm=867176]
[SAP Note 941594|https://websmp130.sap-ag.de/sap(bD1lbiZjPTAwMQ==)/bc/bsp/spn/sapnotes/index2.htm?numm=0000941594&nlang=E]
Good luck!
Regards,
Aditya

Photoshop CS3 Book and Tutorial Recommendations

Hi there,
I am a beginner CS3 user. My main interest is in enhancing old graphic prints (not digital photography). By enhancing I mean changing colors, brightness, contrast, and sometimes redrawing a section of the original print. I typically scan the prints and save the images as tiff files that I then open in CS3. I'm running OSX 10.4.11.
There are numerous books on Photoshop CS3 on Amazon, but I am finding it difficult to make a choice. I would like book and tutorial recommendations from the Photoshop user forum community.
Thanks!
Al

I'll suggest a different tack altogether. As I'm a visually oriented, I find that being shown is far more effective than reading about things. Parsing intellectual abstractions (language) rather than dealing directly with the subject through imagery always seems like an extra labor... at least at the beginning until I have enough of a syntax built to enable contextual relevance.
With that preface I'd suggest you look at Deke McClelland's video tutorials now available online from Lynda.com. Start with "Photoshop CS3 One-on-One: The Essentials' followed by "Photoshop CS3 One-on-One: Beyond the Basics" and "Photoshop CS3 One-on-One: Advanced Techniques." After Deke's tutorials you will be prepared to dive into any of the many others Photoshop CS3 authors available on Lynda.com.
http://movielibrary.lynda.com/authors/author/?aid=98
When I first started Photoshop, it was so dense and alien that, even with several books to help, I considered myself only a beginner even after a year or so of intense struggle. Then I ran into Deke's training and felt that I made a huge jump in comprehension and skill set in a very short time. I would watch the training and during the first go would do the examples. After once through I would work with PS for a bit to let the training sink in and then watch once more followed by more work. After the third viewing, I'd absorbed almost all I was going to and Deke's jokes were old so it was time to move on.
The training on Lynda.com is very reasonably priced for the value of the training and I would suggest Deke's tutorials to any beginner as a more effective way to start than books.

Basic Template tutorial

Suggestions for an easy to use basic template tutorial?
1) Specifically I want to create a template with a navbar
similar to this one:
www.mulberrywood.com
2) Without the center text and images
3) And with the bottom text links to other pages.
For some reason when I manually copy the text links at the
bottom of the page they never link correctly... I have to use the
link box at the bottom of the page to erase the link and then paste
in the link and then they always work...

> I am seeking a very easy to follow tutorial (preferably
with step by step
> examples) so that I can make this specific template (and
others) myself.
Did you read the tutorial at the dw template tutorial link I
supplied?
>
> Also I am seeking a reason why when I manually copy and
paste text links
> such
> as those at the bottom of the page the links never work.
Yet when I
> quickly
> erase the links (leaving the text) and then redo the
links by pasting the
> www....... in agian they always work. I am sure taht
there is a very
> simple
> logical reason but what
I'm not exactly sure you are having the copy and paste
problem, but I would
assume it's because the links aren't being recognised
correctly.
Ok, I'll give you the steps to take to create a template from
that mulberry
page.
Make sure the page you want to create a template from is
correctly coded,
the links are correct, the links to graphics are correct
extra.
1.Open the site you want to work on. ( you need to be working
in a defined
DW site for templates to be created correctly
2.Open the index page (which is the one I presume you want to
create into a
template).
3.Leave everything as it is.
4. Go to FILE>SAVE AS TEMPLATE
5. You will get a dialogue box..
with the Site box already filled in (should be the name of
you defined site)
Save As: give your template a name (eg: mainpage)
Save
6. You will be asked to update links. Say yes
7. You now need to create an editable region (this is the
area that you
will be changing on every page).
8. Highlight the center table in your content area
9. Go to : INSERT>TEMPLATE OBJECTS> select Editable
Region
10. Dialogue box: Name: maincontent (or whatever you want to
call this
editable region)
11. Click OK
12. You have now created a template.
the code around your table should now look like this:

<table> bla bla bla </table>

13. Now if you want to create a 'child page' from this
template go to:
FILE>NEW> and select the TEMPLATES tab
You should now see the name of the template you create.
13. Select the template and a page will now be created for
you.
You should now see a page exactly the same as your index page
(if that is
what you used to create the template), except that you can't
change anything
in any area apart from that middle table.
14. You now need to save this page.
SAVE AS: services.html (or whatever).
Make sure you save the file to the root of your folder (where
all your other
files are kept, DO NOT save into the template folder) You are
not to have
anything in the Templates folder apart from the dwt file.
15. Your bottom links in your template file (dwt) will look
something like
this:
a href="../howtofoldpocketsquares/pocketsquarefolds.htm"
This is because once the template is created, the link needs
to point to the
root of your site.
When you look at the same link in the child page you created
it will look
like this:
a href="howtofoldpocketsquares/pocketsquarefolds.htm"
That's about it. You cannot however, apply this template to
your other
pages. You can, however, it may be difficult for a novice to
accomplish
until they understand how templates work.
If you managae to create the template, you will have to
create a child page
and then copy and paste the contents from your other pages
into that
maincontent editable region you create.
Another thing to remember is that in your template, make sure
when / if you
add links to make them Relative to: document. This way, your
linking should
always be correct.
For when you want to create a new template at any other time
(not with this
site), the steps are pretty similar. Create your page, save
as template,
add any editable regions you need and follow the steps from
there.
PS: I did notice in your code, that you are using <th>
in your tables
instead of <tr>
<th> is really used for headings, you should be using
<tr> table rows.
When you insert a table, there should be a dialogue box,
where you need to
DESELECT header rows.
Anything that gets put into a <th> gets a bold
formatting, which is not what
you really want when you create a table correctly.
This table tutorial may also be of some help to you:
http://www.dwfaq.com/Tutorials/Tables/flexible_tables.asp
Phew !! I think that's about it and I hope this helps, at
least a bit ;-)
Nadia
Adobe� Community Expert : Dreamweaver
http://www.csstemplates.com.au
- CSS Templates | Free Templates
http://www.DreamweaverResources.com
- Dropdown Menu Templates|Tutorials
http://www.macromedia.com/devnet/dreamweaver/css.html
- CSS Tutorials

I thought I upgraded to Pro, but my account shows both Basic and Pro. How can I upgrade to Pro and cancel Basic without losing my forms?

I thought I upgraded to Pro, but my account shows both Basic and Pro. How can I upgrade to Pro and cancel Basic without losing my forms?

Hi Rochdr,
You can use the following article to help you address this issue with your mail account in OS X:
OS X Mail: Troubleshooting sending and receiving email messages
http://support.apple.com/kb/ts3276
Thanks for using the Apple Support Communities. Have a good one!
-Braden

SAP Portal Network - WebDynpro iView and SAP Application iView sharing

Hello All,
I've read about the restrictions in SAP Portal supporting the WSRP standard for application sharing. Mainly WebDynpro iViews and SAP application iViews sharing is not supported. That is in the case of a SAP Portal as producer and Non-SAPPortal as consumer.
I'm interested in a WebDynpro iViews and SAP application iViews sharing in a only-SAP Portals Network, where SAP Portals act as producer and consumer.
I've heard about the Remote Role Assignment and Remote Content Copy that are used in such case. I would like to ask if anyone knows if these can help overcome the restriction in sharing WebDynpro iViews and SAP application iViews that is present with WSRP? And if the advantage of WSPR, that is the application execution and rendering on the producer side, and as follows decreasing of bandwidth usage, is remaining in the case of the Remote Role Assignment and Remote Content Copy.
Thanks,
Mladen

Hi Manish,
for sharing content between SAP and non-SAP Portals, your case, refer to
http://help.sap.com/saphelp_nw2004s/helpdata/en/43/23fb36cad10d23e10000000a1553f7/frameset.htm
All the possibilities and restrictions of WSPR in the case of SAP EP are explaind there.
For sharing content between only SAP Portals refer to my other thread:
Portal Network - Content Sharing
Hope it helps you!
Mladen

Basic and scheduling dates & time calculation in process order creation

Hi guru's,
i have one requirement, i need to calculate and display the basic and scheduled dates & times based on the given input i.e material , plant , process order type , quantity , UOM and scheduling type ( for corresponding scheduling type user will provide either start date or finish date ) using RFC. can u plz provide any function module for this purpose or logic for calculating the same , as i am working on version 4.7ee .
Awaiting for a quick response.
Regards,
Madan

Dear Rohan,
1.Check the length of break timings defined in the resource that is assigned in the phase.
2.Check in OPUZ whether for the process order type and plant combination whether scheduling is to include the break time also
(whether the check box for scheduling with breaks) is included.
Check and revert back.
Regards
Mangalraj.S

Hi. Does anyone know what video editing software is compatible with my MacBook - version 10.6.3? I am looking to edit films and already have Final Cut Pro, but am looking for something a little more basic and easier to use. Thanks. Vicki

Hi. Does anyone know what video editing software is compatible with my MacBook - version 10.6.3? I am looking to edit films and already have Final Cut Pro, but am looking for something a little more basic and easier to use. Thanks. Vicki

Hi Cereskit
Thanks again for the message. I've done the updates and have the App Store on my desktop. I went into it and searched for imovie but couldn't find the basic imovie, which I presume is what I'd need for editing?, rather than imovie 11 for £10.49, which is for making trailers, it seems. Also, were you saying that imovie would be free?
Vicki

How do I get the Basic and camera calibration sub panels in the develop modual to come back after they go away on there own?

I was working on images and then when I picked a different image the basic and camera calibration sub panels disappeared. How do I get them back?

Right click on one of the other headers and a popup will appear and you can select the ones you need to view.

Planning method/Basic and Planning method/forecast field values are grey

Hi Experts
The Planning method/Basic and Planning method/forecast field values are grey in my project profile.
What customization would influence for this setting. I wish to change from 2 to 4. Please advise the solution/
warm regards
ramSiva

You can change the above field values only from WBS scheduling profile. If you want to change them, choose 'free scheduling' method.
Regards,
Mahendra

How to design this requirement by GP, webdynpro, Adobe and UWL?

The scenario is :
The supplier logs in the SAP Portal
1) The first screen should be WebDynpro screen with some filter selection which have drop downs etc populating from R/3
After selecting particular values and clicking on a button on screen an adobe form should open upon fetching detail from R/3
2) This adobe form will have certian prefilled information and certian fields will be editable for the supplier to fill in.
After the supplier fills in the remaining data he clicks on "Submit" button on the form (Assuming this is online scenario).
3) Now this form should go for approval as line item in inbox (portal inbox can be UWL/GP).
4) Once the manager clicks on the line item which has come for approval, on click the filled adobe form should open up and
the Manager should have option to approve/reject. If approved the data should load in SAP R/3 (I assume to send data back to R/3 i will have to make this also WebDynpro but how will it have the values that the supplier filled in and how can be it be open when clicked on line item in GP?)
Note: This all has to be achieved by using WebDynpro for Java/GP/Adobe, no SAP R/3 workflow has to be used.
Kindly let me know how can I break this requirements into WebDynpro ,GP and adobe?
Need Help in designing and whether its possible or not? Helpful answers will be rewarded.
Regards,
VD

Hi Vishal,
try this link...
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/e0957cb6-5103-2a10-6d9d-a0a4d68c8bf1
Regards,
Sudheer.

Upgrading Oracle soa suite 10.1.3.1 to 10.1.3.4 by Basic and Advance instal

Hi,
i have installed oracle soa suite 10.1.3.1 basic installation and needs to upgrade to 10.1.3.4 . I searched in google some suggested
1) install database 10g xe or some version 10.2+
2) to run irca.cmd script for creating dehydration store
3) Install oracle soa suite basic installation 10.1.3.1
4) Before applying patch run sql scripts
5) apply patch to upgrade to 10.1.3.4
Here i have one doubt in basic installation oracle lite database will be installed by default then how do i relate external database to soa suite in basic installation . Is it possible ?
If we use default database oracle lite for upgrade to 10.1.3.4 and i think it will ask for orabpel and oraesb used id and pwd when we are running the sql scripts which i am not aware of?
and do i still need to run irca.cmd script for creatinv schemas.
I am so confused here i just want to know the steps of upgrade in basic and advance soa installation.
Any answer will be very much appreciable.
will be so keenly waiting for your answer.
Thanks,
Ahmed.

Yes there is some additional steps
if you are doing clustering this should be your bible
http://download.oracle.com/docs/cd/E10291_01/core.1013/e10294/toc.htm
to install 64bit have a look at these references
http://download.oracle.com/docs/cd/B31017_01/getstart.htm
Metalink note 465159.1
cheers
James

What is the best program for designing event flyers? I am looking for something basic and simple.

What is the best program for designing event flyers? I am looking for something basic and simple.

Poor old Photoshop® is forever being put down when it comes to layout work, but it is perfectly capable, and can output a high quality print PDF the printer will be perfectly happy with. OK you don't have the text flow between columns bells and whistles of InDesign and [spit] Publisher, but if you have a $10/month Photoshop/Lightroom subscription, instead of the $50/month full subscription, don't think you can't do a perfectly good flyer or poster.
https://helpx.adobe.com/photoshop/how-to/align-objects-guides.html

Webdynpro ABAP ALV tutorial - simple update or use changelog ?

I was working through the alv tutorials for webdynpro abap, and while trying to complete the
"Editing ALV in Web Dynpro for ABAP", I got to page 8 of the pdf document where it explains how to do the ONDATACHECK event handler, and it comments out the portion for updating/saving the data (as noted below), and does not explain anything further about the save.
* save data to database
{* update... => only simlate, to not change the flight data model
* content!
Now, I am new to webdynpro abap, and don't know if I am supposed to utlize the changelog for this, or if a simple update will work.
Any Ideas ?

Thank you for your answer - I am guessing from your response that a method would need to be built - similar to one which I found in the SWDP_DEMO_TUTORIALS for a webdynpro called WDT_TABLE (see below) - where a check of the table changes would need to be made before an update to the table - rather than a simple one line update statement placed at that point in the code.
METHOD save_changes.
DATA: table_node           TYPE REF TO if_wd_context_node,
        read_sbook           TYPE
if_componentcontroller=>elements_sbook_node,
        aux_read_sbook       TYPE
if_componentcontroller=>elements_sbook_node,
        wa_read_sbook        TYPE LINE OF
if_componentcontroller=>elements_sbook_node,
        context              TYPE REF TO if_wd_context,
        change_line          TYPE LINE OF wdr_context_change_list,
        changes              TYPE wdr_context_change_list,
        aux_changes          TYPE wdr_context_change,
        lv_change_tab_size   TYPE sy-tfill,
        aux_string           TYPE string,
        lv_node_size         TYPE sy-tfill,
        aux_div              TYPE int4,
        aux_index            TYPE i,
        l_current_controller TYPE REF TO if_wd_controller,
        l_message_manager    TYPE REF TO if_wd_message_manager,
        text                 TYPE string,
        it_int TYPE STANDARD TABLE OF i WITH KEY table_line.
* check whether context has changed
context = wd_context->get_context( ).
changes = context->get_context_change_log( ).
LOOP AT changes INTO aux_changes.
    IF aux_changes-change_kind = 'A' AND aux_changes-node_name = 'SBOOK_NODE'.
      INSERT aux_changes INTO TABLE wd_this->sbook_delta.
    ENDIF.
ENDLOOP.
* get the complete context in 'read_sbook' table
table_node = wd_context->get_child_node( name = 'MY_BOOKING_NODE' ).
table_node = table_node->get_child_node( name = 'SBOOK_NODE' ).
table_node->get_static_attributes_table( IMPORTING table = read_sbook
* get the size of table and changes
DESCRIBE TABLE read_sbook LINES lv_node_size.
LOOP AT wd_this->sbook_delta INTO change_line.
    APPEND change_line-element_index TO it_int.
ENDLOOP.
SORT it_int.
DELETE ADJACENT DUPLICATES FROM it_int.
DESCRIBE TABLE it_int LINES lv_change_tab_size.
* get message manager
l_current_controller ?= wd_this->wd_get_api( ).
CALL METHOD l_current_controller->get_message_manager
    RECEIVING
      message_manager = l_message_manager.
* decide which way to update databse
IF lv_change_tab_size <> 0.
    aux_div = lv_node_size / lv_change_tab_size.
    IF aux_div <= 3.
* write complete table to database
      lv_change_tab_size = lv_node_size.
      CL_WDT_FLIGHT_MODEL=>write_sbook_complete( read_sbook ).
    ELSE.
* write only the changed records to database
      LOOP AT it_int INTO aux_index.
        READ TABLE read_sbook INDEX aux_index INTO wa_read_sbook.
        APPEND wa_read_sbook TO aux_read_sbook.
      ENDLOOP.
      CL_WDT_FLIGHT_MODEL=>write_sbook_records_changed( aux_read_sbook )
    ENDIF.
    REFRESH wd_this->sbook_delta.
    REFRESH it_int.
    wd_this->sbook_changed = abap_false.
* report message
    aux_string = lv_change_tab_size .
    IF lv_change_tab_size = 1.
      CONCATENATE aux_string 'record written to database' INTO text.
    ELSE.
      CONCATENATE aux_string 'records written to database' INTO text.
    ENDIF.
    CALL METHOD l_message_manager->report_success
      EXPORTING
        message_text = text.
ELSE.
* report message
    CALL METHOD l_message_manager->report_success
      EXPORTING
        message_text = 'there are no changes to be written to database'.
ENDIF.
ENDMETHOD.

WebDynPro Basics and Tutorial

Similar Messages

Maybe you are looking for