Explanation of some Web Dynpro elements

Hello!
Who can explain to me simply the meaning of these following
words: Please for everyone understandable.
For Which purposes are they exactly useful?
Web Dynpro Component Interfaces:
Web Dynpro Component:
contains entire application

Component Controller:
Component Interface:
Custom Controller:
Regards
erdem

It goes like this.
Webdynpro is designed based on MVC architecture (Model-View-Controller).
Model - That mocks your data
View - Presentation logic for displaying your data
Controller - The middle point that populates the model with data and passes the data to the view for display.
Keeping this in mind, lets look at what are the specific terms used in Webdynpro that are synonymous to either of the three given above.
Component Controller / Custom Controller - Every webdynpro has a controller by default. There is a standard one that is created when creating a Webdynpro project and then there is the one (Custom Controller)that the developer can create if he doesnt want to put his code in the one provided when creating the webdynpro.
Component Interface - The interface that helps connecting two webdynpro components
<a href="http://help.sap.com/saphelp_nw04s/helpdata/en/3a/d08342a7d30d53e10000000a155106/frameset.htm">Try reading this as well.</a>
Hope this helps.
Pradeep.

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The situation is as follows:
Some web-dynpros (for java) have a custom theme, a theme which is not the default theme of the portal or the default theme for web-dynpros in general.
In NW2004 this worked as follows:
When starting a web-dynpro in the portal it checked if it was started with the right theme. If not the exit plug of the WD interface view was called with an Url of the WD application plus a parameter for the right theme.
This is the famous parameter sap-cssurl.
For that parameter there are some values possible:
1) sap-cssurl=http://<host>:<port>/irj/portalapps/com.sap.portal.design.urdesigndata/themes/portal/mytheme
2) sap-cssurl=http://<host>:<port>/irj/portalapps/com.sap.portal.design.portaldesigndata/themes/portal/mytheme
3) sap-cssurl=http://<portal>:<host>/webdynpro/resources/sap.com/tcwddispwda/global/SSR/themes/mytheme
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As I noticed this must be a full qualified absolute Url including host and port.
This works in NW2004 for web dynpro's running standalone AND in the portal.
Now for NW2004s:
The 3 variants of the parameter sap-cssurl work for web dynpro's running standalone.
But now for web dynpro's which are integrated in the portal:
The exit-plug with an Url is not possible anymore, this leads to the runtime error:
com.sap.tc.webdynpro.services.exceptions.WDRuntimeException: Exit-Plug must no be triggered with an URL when running in portal. Use portal navigation instead to navigate to another application!
Okay, as a first workaround I tried the portal navigation,
but somehow the supplied parameter sap-cssurl has no effect.
The code for that in the on-startup plug of the WD component:
WDPortalNavigation.navigateAbsolute(
PCD_ID,
WDPortalNavigationMode.SHOW_INPLACE,
null,
null,
WDPortalNavigationHistoryMode.NO_HISTORY,
null,
null,
"theme_set=X&" + theme,
 theme,
 false,
 true
I used there absolute portal navigation and the parameter (sap-cssurl=...) is part of the launcher parameter and the business parameter in the call to WDPortalNavigation.navigateAbsolute.
But as I wrote above, this has no effect on the theme.
In the I-View the parameter "Supply portal theme" is set to NO, otherwise the parameter "sap-cssurl" is supplied twice (this can be seen in the poroperties of the web-page in Internet Explorer).
What I tried afterwards was setting the parameter sap-cssurl hardcoded in the "Application parameters" of the I-View. This doesn't work either.
My question is: Should this be anyway possible for a NW2004s portal?
Did anyone successfully implement this?
Kind regards,
 Erich Lind

Hi Erich,
I am facing the same problem. I am on 04 s and couldnot implement the custom theme to a web dynpro running in the portal. When I run the web dynpro app as stand alone, the custom theme applies fine. But when in portal, it takes the standard theme.
Was wondering if you figured this out.
Thanks

Problem in connecting JCO destination in web dynpro

HI all,
I was installed sneak preview of Net weaver 6.4,
I want to do some web dynpro (java) programs which connect to back end systems.(R/3 system).
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I developed an application which calls COMPANY_CODE_GET_LIST (BAPI function).
for the above requirement what I did was
(1)I created SLD setting.
(a)Web as Java (I am not having any problem to
Create this.
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When i am trying to create
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I also went to SLD Data Supplier,under Runtime tab , HTTP Settings , I mentioned
(a)Host: pava-vis75
(b) Port: 50000
(c) user: administrator
(d) password: abcd1234
RFC Settings, I mentioned as
(a)Gateway Host: 10.10.10.125 (which is SAP R/3 system)
(b)Gateway Service/Host: sapgw00
CIM Client Generation settings, as
(a)Host: pava-vis75
(b)Port (http/https):50000
(c) user: administrator
(d) Password : abcd1234
I tested the CIMClient Test by click the the button. I got the successful message.
Then I came back to HTTP settings and clicked the button with tilted arrow mark [This triggers data transfer to system landscape directory], for this also I got a successfully message.[data transferred successfully]
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(b)Host Name: pava-vis75
(c)Port: 50000
(d) user: administrator
(e) password: abcd1234
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Next I created sapmsUV0 3600/tcp entry at
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(1) COMPANY_CODE_MODEL
(2) COMPANY_CODE_RFC_METADATA
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First one is
General data Name : COMPANY_CODE_RFC_METADATA
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I didnt changed any default JCo pool configuration.
J2EE Cluster
There is a check box called Use Local J2EE engine J2E on pava-vis75 so I choosed that.
Connection Type
Dictionary Meta Data and application Data
I choosed the first one.
Then
Msg. Server Connection
Security
After these, I tried to test the connection by clicking the Test Connection.
It is saying the error as
First time
com.sap.mw.jco.JCO$Exception: (102) RFC_ERROR_COMMUNICATION: Connect to message server host failed Connect_PM TYPE=B MSHOST=v011 GROUP=DEFAULT R3NAME=UV0 MSSERV=sapmsUV0 PCS=1 ERROR service 'sapmsUVO' unknown TIME Fri Jul 01 07:20:41 2006 RELEASE 640 COMPONENT NI (network interface) VERSION 37 RC -3 COUNTER 1
second time
com.sap.mw.jco.JCO$Exception: (102) RFC_ERROR_COMMUNICATION: Connect to message server host failed Connect_PM TYPE=B MSHOST=v011 GROUP=DEFAULT R3NAME=UV0 MSSERV=sapmsUV0 PCS=1 ERROR service '?' unknown TIME Fri Jul 01 07:20:41 2006 RELEASE 640 COMPONENT NI (network interface) VERSION 37 RC -3 COUNTER 1
Can any body please help me to solve this problem.
From past 1 week on wards I have been trying to resolve this. But in vain.

It does not necessarily mean that you have to change that parameter. I read that blog as I had a similar problem, and after reading it and understanding the reasons and possible causes for the error, I found that my particular problem was that I was using "PUBLIC" as the logon group in my JCO destinations, but such a group does NOT exist at my backend. I went to transaction SMLG, had a look at Logon Groups, noted that there were none other than SPACE, figured out that I had to include that information in SLD (Web AS ABAP tech. system --> Message Server --> Logon Groups), put it there. Voilá. It works.
Edit: That SPACE logon group is the one I had to use at JCO destinations. Sorry I forgot to mention that one...
Regards,
Eduardo.
Message was edited by: Jesus Cil

Search help in web dynpro Java i-view

Hi experts!!
I am new to EP so i need some help..
I am trying to implement some web dynpro i-views and i would like to know if there is any way to have F4 search help for fields in form template that correspond to R/3 fields. In other words i want to take the search help values from the R/3.
Should i create a model to call a BAPI for search help??? Or is there any other way?????
Thanx in advance...!!!
PS: will reward points to usefull answers.

Hi You can create Value Help in Webdynpro to show F4 Help values.
Follow this link
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/2833ce90-0201-0010-f1af-d3cfe1155b16
Reward Points if Helpful
Edited by: Praveen Kommineni on May 7, 2008 8:05 PM

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Hi,
Experts,
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Hi,
Please refer to these links..
[https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/b083f76a-708c-2b10-559b-e07c36dc5440]
[https://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/a137c339-0b01-0010-a688-a87b88706845]
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Hi Experts,
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com.sap.tc.webdynpro.services.exceptions.WDRuntimeException: Failed to resolve JCO destination name 'DT8_METADATA' in the SLD. No such JCO destination is defined in the SLD.
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Regards,
S

Hi,
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Hello,
Have anybody heard of any plans by SAP to support SAP Web Dynpro ABAP as another option for the UI in SAP NeWeaver BPM?
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i heard it can be expected in 7.3.

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HI,
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Regards,
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Print Functionality for Web Dynpro ABAP Application

Hi All,
I am using the standard print button provided by FPM in my application.
The application has a date navigator control as well as a dynamic ALV with fixed and on fixed columns.
I would like to know if the application has to do any implementation to provide print functionality. If yes, how do we do it?
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Defining output device in our user as LOCL is enough to test it? Are there any limitations?
Findings until now:
I just happened to see that gc_event_print FPM event is raised and the application uses interactive PDF form to implement printing.
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Regards,
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>I just happened to see that gc_event_print FPM event is raised and the application uses interactive PDF form to implement printing.
I am not sure if this satisfies my requirement.
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Hello,
A customer of ours has some Z transactions in its R/3 system, which basically present a very simplyfied version of MIGO. This Z transaction makes extencive use of Search Helps, which in some cases have been extended.
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Greetings, Walter.

Hi Walter,
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OVS https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/library/webdynpro/wd%20java/wd%20tutorials/web%20dynpro%20valuehelp%20using%20object%20value%20selector.pdf
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https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/library/webdynpro/wd%20java/wd%20tutorials/value%20help%20in%20web%20dynpro%20applications.pdf
EVS
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/f0e57440-ec1c-2a10-36b1-fe92341f98c4
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Regards,
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Dharmi,
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Web Dynpro on nw 4.6

Hi,
I would like to know the minimum system requirements to develop a Web Dynpro ABAP application. As per my knowledge, we require 2004s or ECC 6 for it to function. However, a client requires some web dynpro applications with interactive adobe forms on 4.6 platform. Would this be possible, please help.
Regards,
Preethi.

Check out the system requirement [Here|http://help.sap.com/saphelp_nw04s/helpdata/en/43/e86de5008b4d9ae10000000a155369/content.htm]

Explanation of some Web Dynpro elements

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