Basic of Web dynpro

Hi All
I am new in Web-Dynpro and please give me some document releted to these words
WdThis
IWDController
IWDViewController,IWDWindowController,IWDmessagemanager,IWDWindowmanager
and please tell me how and when we access these.
Regards
Satish

Hi
1) Controller Shortcut Variables
private final IPrivate wdThis;
private final IPrivate.IContextNode wdContext;
private final IWDViewController wdControllerAPI;
private final IWDComponent wdComponentAPI;
public (IPrivate wdThis) {
this.wdThis = wdThis;
this.wdContext = wdThis.wdGetContext();
this.wdControllerAPI = wdThis.wdGetAPI();
this.wdComponentAPI = wdThis.wdGetAPI().getComponent();
2) Within any Web Dynpro controller, three shortcut variables are always present, whose values are all derived from the member variable wdThis.wdThis is the Web Dynpro specific self reference and should be used in preference to the standard Java self reference of this.
3) The member variable wdThis is populated from a parameter of the same name, passed in by the Web Dynpro framework when the controller is instantiated.
IWDController
https://help.sap.com/javadocs/NW04S/current/wd/com/sap/tc/webdynpro/progmodel/api/IWDController.html
IWDViewController
https://help.sap.com/javadocs/NW04S/current/wd/com/sap/tc/webdynpro/progmodel/api/IWDViewController.html
IWDMessageManager
https://help.sap.com/javadocs/NW04S/current/wd/com/sap/tc/webdynpro/progmodel/api/IWDMessageManager.html
IWDWindow
https://help.sap.com/javadocs/NW04S/current/wd/com/sap/tc/webdynpro/services/session/api/IWDWindow.html
IWDWindowManager
https://help.sap.com/javadocs/NW04S/current/wd/com/sap/tc/webdynpro/services/session/api/IWDWindowManager.html
Thanks and Regards,
Arun

Similar Messages

What are the basic .jar files to be set in web dynpro project classpath

Hi,
I am having a problem while customizing the ESS. I used DTR, DC and imported configuration. After that, I created project from one of the DC(say ess/jp/addr). Later when I open an iView from any Web Dynpro component, I am getting lot of errors without even making any modifications.
I closed the project and reopened it and reload & rebuilt, but it doesn't solved my problem. In my classpath settings I couldn't find any jar files except the jre_lib. Could you please let me know what are the basic jar files we have to set in classpath and where to get them from. We are using NWDS 7.0.06 version.
Can you please let me know how to solve this or any other way to work around this.
It's an urgent to be fixed as early as possible, plz help me out.
Thanks & Regards,
Raj

Hi Julien,
Thanks for your reply.
We imported the the specified SCAs in our track.
we are getting the following errors.
Kind Status Priority Description Resource In Folder Location
Error The import com.sap.xss.per cannot be resolved CcPerAddressInterface.java NS1_XSSTR_Dessusaddrsap.com/gen_wdp/packages/com/sap/xss/hr/per/us/address/cc line 18
Error com.sap.pcuigp cannot be resolved (or is not a valid type) for the argument fpm of the method loadConfiguration CcPerAddressInterface.java NS1_XSSTR_Dessusaddrsap.com/gen_wdp/packages/com/sap/xss/hr/per/us/address/cc line 113
Error com.sap.pcuigp cannot be resolved (or is not a valid return type) for the method getNextPerspective CcPerAddressInterface.java NS1_XSSTR_Dessusaddrsap.com/gen_wdp/packages/com/sap/xss/hr/per/us/address/cc line 127
Error com.sap.pcuigp cannot be resolved (or is not a valid type) for the argument currentPerspective of the method getNextPerspective CcPerAddressInterface.java NS1_XSSTR_Dessusaddrsap.com/gen_wdp/packages/com/sap/xss/hr/per/us/address/cc line 127
Error com.sap.pcuigp cannot be resolved (or is not a valid return type) for the method getCAPState CcPerAddressInterface.java NS1_XSSTR_Dessusaddrsap.com/gen_wdp/packages/com/sap/xss/hr/per/us/address/cc line 137
Error com.sap.pcuigp cannot be resolved (or is not a valid type) for the argument perspective of the method getCAPState CcPerAddressInterface.java NS1_XSSTR_Dessusaddrsap.com/gen_wdp/packages/com/sap/xss/hr/per/us/address/cc line 137
we manually set below .jar files in classpath settings.
pcuixssfpm.jar
pcuixssutils.jar
logging.jar
essper.jar
Is there any alternative to work around.
Thanks & Regards,
Raj

Basic Steps to create a web dynpro program

Hi Gurus,
I am an Abaper and i am very much interesting in Webdynpro... i don't have basic knowledge on Web Dynpro...
So can any one of you provide me the basic steps to create a program or If you have any docs then kindly share with me
Regards
Sameer([email protected])

Hi
This link will help you
http://help.sap.com/saphelp_nw04s/helpdata/en/77/3545415ea6f523e10000000a155106/frameset.htm
you can also search sdn for more helps and examples
Also check this thread
https://forums.sdn.sap.com/click.jspa?searchID=9213934&messageID=4627099
Regards
Sarath

Web DynPro for ABAP Basics

Hello Seniors,
I am new to Web DynPro for ABAP. Could you please give me some information or send some basic documents for Web DynPro for ABAP. Please send some basic scenarios also.
Thank you,
Chaitanya.C.N

Hi Chaitanya,
Here is some information about Webdynpro for ABAP.
1) This is basic Info of WD ABAP
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.
2 ) I can give you links that can help you a lot.
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 .
Also, 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
there are many more .
We can call BAPI through a service call in web dynpro application. Thus automatically backgroud code for BAPI execution will be generated.
To start with Web dynpro ABAP you can try following tutorial:
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/a282c952-0801-0010-1eb5-87953e036712
You can start with tutorials and all. There are around six tutorials in SDN library.
Web Dynpro for ABAP
http://help.sap.com/saphelp_erp2005/helpdata/en/a5/1a1e3e7181b60ae10000000a114084/frameset.htm
best tutorials in wbdynpro for ABAP to start with :
https://www.sdn.sap.com/irj/sdn/developerareas/webdynpro?rid=/webcontent/uuid/fed073e5-0901-0010-4eb4-c9882aac7b11 [original link is broken] [original link is broken]
Have a look at the following SDN WDA Wiki . There you can find all relevant information.
https://wiki.sdn.sap.com/wiki/display/WDABAP/Main
Also you can search weblogs on web dynpro ABAP.
http://help.sap.com/saphelp_nw2004s/helpdata/en/45/19bf8c16f25d7ae10000000a11466f/frameset.htm
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
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/02e1fa45-0801-0010-10a0-f1cf47e8c943
http://help.sap.com/saphelp_nw04s/helpdata/en/77/3545415ea6f523e10000000a155106/frameset.htm
https://www.sdn.sap.com/irj/sdn/wiki?path=/display/wdabap/main&
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/a282c952-0801-0010-1eb5-87953e036712
You can start with tutorials and all. There are around six tutorials in SDN library.
Web Dynpro for ABAP
http://help.sap.com/saphelp_erp2005/helpdata/en/a5/1a1e3e7181b60ae10000000a114084/frameset.htm
best tutorials in wbdynpro for ABAP to start with :
https://www.sdn.sap.com/irj/sdn/developerareas/webdynpro?rid=/webcontent/uuid/fed073e5-0901-0010-4eb4-c9882aac7b11 [original link is broken] [original link is broken]
http://www.****************/Tutorials/WebDynproABAP/TextRadioButton/page1.htm
reward points for helpful answers.
Thanks,
Raghava Vakada.

Few basic ques on Web Dynpro

Hi All,
I have few ques on Web Dynpro basics.
1. Why is Web Dynpro said to have language-neutral metamodel.
2. What is meta-model.
3. What is declarative programming approach.
4. Why is a dictionary used. The simple type and a structure can also be declared in a Controller. Is it just a Global Declaration.
5. Where does the code of dictionary reside.
Shall be grateful for the answers.
Regards
Nikhil Bansal

Hi Nikhil
Here is the answers for your questions.
1.Why is Web Dynpro said to have language-neutral metamodel
A.the user interfaces developed in webdynpro is platform independent because of meta model/data generated by webdynpro framework is independent of all languages.This metamodel you can transfer to any system so that the application is executed in that system.So generated meta data is independent.
2.What is meta-model.
Metamodel is data about the application.Webdynpro framework have seperate tools to generate this metadata in xml files.These files contains all information about your application.Views,components,actions every thing.
Metadata/model means data about the data in general
3.What is declarative programming approach
Declarative approach is the one with out coding most of the things required to implement User interfaces (design,appearence,data) are specifying at design time by choosing right properties.So this eliminates most of the coding.So this is the declarative model.
4.Dictionary
This is again having two types like simple and structure,Here basically we store the data in dictionary datatype or populate the data in this type in runtime.Usually this datatypes are used to display the data in dropdown box or to display large data.
5>Where does the code of dictionary reside
The Dictionart classes are generated by the frame work for simple type,For complex type the data you are populating in view controlleres depending upon the conditions
For clear classification
www.help.sap.com
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]
https://www.sdn.sap.com/irj/sdn/developerareas/webdynpro
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 [original link is broken]
Web DynPro Help
Reading Material on Web Dynpro
http://help.sap.com/saphelp_nw04/helpdata/en/5c/1b76bc3da0504e8b535cf3e154eaa7/content.htm
/thread/396968 [original link is broken]
regards
kalyan

Basic question on a web dynpro application

Hi All,
I am new to NWDS 2004 and I just executed my first web dynpro application that is on https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/library/webas/a-c/creating your first web dynpro application.pdf
I have couple of questions
1. when i click the back button the text that was entered in the Start view is visible even after I hit the back button in the result view. Can you tell me how to keep the input field empty in the start view after hitting back button?
2. After deploying the Web Dynpro application, where from the Portal, can i assign this web dynpro application to a user .
Thank you
Regards
Luke

Try putting adding this code to your onActionBack method.
public void onActionBack(com.sap.tc.webdynpro.progmodel.api.IWDCustomEvent wdEvent )
//@@begin onActionBack(ServerEvent)
String headerText = " ";
wdContext.currentContextElement().setHeaderText(headerText);
wdThis.wdFirePlugToStartView();
//@@end
REgards,
RIch Heilman

Error in basic web dynpro application

i went through the following link
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/cb243c45-0801-0010-eb9c-88669007f130
and it has a tutorial to creating a web dynpro application
i have done all the steps,but when the explorer opens i get the following error
The requested URL could not be retrieved
While trying to retrieve the URL: http://saptd:8000/sap/bc/webdynpro/sap/zz_00_sflight?
The following error was encountered:
    Unable to determine IP address from host name for saptd
The dnsserver returned:
    Name Error: The domain name does not exist.
This means that:
The cache was not able to resolve the hostname presented in the URL.
Check if the address is correct.
Your cache administrator is root. .
can any1 help me out on this

Hi
1.Go to Transaction RZ10
2. Select the Instance Profile and Check the radio button extended maintanence.
3. create a new parameter icm/host_name_full
   give the value as $(SAPLOCALHOST).domain.ext
5. save and activate your profile.
4. restart your application server.
Note: domain.ext can be any name.
Regards
Abhi

Basic knowledge about Sap Netweaver, Web As, Web Dynpro

Hi guys,
I am a new nut guy trying to understand Sap NetWeaver. Could you guys explain to me just briefly in the most simplest ordinary terms about points below. I tried to read documentations but do not understand completely.
1) What is Sap NetWeaver? Does it comes with several components?
2) What is Web AS?? what does it serve?
3) I heard about Web Dynpro for Java and Web Dynpro for Abap. They are used to develop Web applications in Java language and the other in Abap language. I'm interested just on knowing the Java side.
I just want to understand the hardware systtem achitecture and associated software to be installed.
Now for Java, I heard that we need to install Web Developper Studio, rite?? then which version should I install, Sap Netweaver SP16 or Sap Neweaver 2004 or Sap Netweaver 2004s?? where can i find it?? should it be installed in front end station? do i need Java?
Now for Web AS, where do i install it??
I'm totally new in Sap NetWeaver
Thanks a lot guys

Hi Ralph, I will try to keep it simple.

1) What is Sap NetWeaver? Does it comes with several components?

SAP Netweaver is the platform in which all SAP software runs on top of. For example R/3 ran on the "Basis" layer, this is simular in ECC6.0, where ECC is the R/3 part and Netweaver(ABAP stack) is the "Basis" Layer. With Netweaver you get two stacks, ABAP and Java. SAP components run on one or the other. Netweaver includes, but is not limited to:
Netweaver Application Server(formerly called WebAS)
Netweaver Portal(formerly called EP)
Netweaver XI(I think there is a new name for this)
etc.

2) What is Web AS?? what does it serve?

WebAS is now called Netweaver Application Server, this is the basis for all applications, whether ABAP or java based. For example the ECC(R/3 component) runs on the ABAP stack of Netweaver Application Server, the Netweaver Portal runs on the Java stack of NW Application Server.

3) I heard about Web Dynpro for Java and Web Dynpro for Abap. They are used to develop Web applications in Java language and the other in Abap language. I'm interested just on knowing the Java side.

For the java side, you develop the webdynpro applications locally on your laptop using NWDS(Netweaver Developer Studio) and then deploy this application to the Netweaver Application Server(java stack). You can then implement the application into an iView in the NW Portal.
http://help.sap.com/saphelp_nw2004s/helpdata/en/15/0d4f21c17c8044af4868130e9fea07/frameset.htm

I just want to understand the hardware systtem achitecture and associated software to be installed.
Now for Java, I heard that we need to install Web Developper Studio, rite?? then which version should I install, Sap Netweaver SP16 or Sap Neweaver 2004 or Sap Netweaver 2004s?? where can i find it?? should it be installed in front end station? do i need Java?
Now for Web AS, where do i install it??

Which NWDS to install depends on the version of the java engine in which you are working with. The rule is that you keep the version of NWDS in sync with the version of the Netweaver Application Server(java engine). Usually the NW AS, is intalled on a standalone server(not your laptop), but you can install sneak preview editions on your laptop for testing .
I hope this helps a little.
Regards,
Rich Heilman

Error While uplaoding a EXCEL file in Web dynpro - HR_KR_XSTRING_TO_STRING

Hi,
I am getting an error while uploading an excel file in web Dynpro application. i am using the HR_KR_XSTRING_TO_STRING this function. I am getting the following error message 'Unable to interpret as a number'.

First of all, are you sure you know what you are working with here. If this is standard Excel file in the Microsoft binary/propriatery format there is not function module or class in ABAP that can magically just transform this to a character string. You should search the forums as this has been discussed extensively. On that topic, please also do not post duplicate threads. I have already locked your other thread with the same basic question.
Instead of the binary/propriatery format of Excel, the file should be saved on the client as a text based format - like XML or Text Tab Delimited. You can then use several different options on the server to convert the XSTRING to STRING and process the content (becuase it was text based to begin with). You could use CL_BCS_CONVERT, the function modules in the function group SCMS_CONV, or the class CL_ABAP_CONV_IN_CE.

Import data from excel/csv file in web dynpro

Hi All,
I need to populate a WD table by first importing a excel/CSV file thru web dynpro screen and then reading thru the file.Am using FileUpload element from NW04s.
How can I read/import data from excel / csv file in web dynpro table context?
Any help is appreciated.
Thanks a lot
Aakash

Hi,
Here are the basic steps needed to read data from excel spreadsheet using the Java Excel API(jExcel API).
jExcel API can read a spreadsheet from a file stored on the local file system or from some input stream, ideally the following should be the steps while reading:
Create a workbook from a file on the local file system, as illustrated in the following code fragment:
          import java.io.File;
          import java.util.Date;
          import jxl.*;
         Workbook workbook = Workbook.getWorkbook(new File("test.xls"));
On getting access to the worksheet, once can use the following code piece to access individual sheets. These are zero indexed - the first sheet being 0, the second sheet being 1, and so on. (You can also use the API to retrieve a sheet by name).
          Sheet sheet = workbook.getSheet(0);
After getting the sheet, you can retrieve the cell's contents as a string by using the convenience method getContents(). In the example code below, A1 is a text cell, B2 is numerical value and C2 is a date. The contents of these cells may be accessed as follows
Cell a1 = sheet.getCell(0,0);
Cell b2 = sheet.getCell(1,1);
Cell c2 = sheet.getCell(2,1);
String a1 = a1.getContents();
String b2 = b2.getContents();
String c2 = c2.getContents();
// perform operations on strings
However in case we need to access the cell's contents as the exact data type ie. as a numerical value or as a date, then the retrieved Cell must be cast to the correct type and the appropriate methods called. The code piece given below illustrates how JExcelApi may be used to retrieve a genuine java double and java.util.Date object from an Excel spreadsheet. For completeness the label is also cast to it's correct type. The code snippet also illustrates how to verify that cell is of the expected type - this can be useful when performing validations on the spreadsheet for presence of correct datatypes in the spreadsheet.
String a1 = null;
Double b2 = 0;
Date c2 = null;
                    Cell a1 = sheet.getCell(0,0);
                    Cell b2 = sheet.getCell(1,1);
                    Cell c2 = sheet.getCell(2,1);
                    if (a1.getType() == CellType.LABEL)
                       LabelCell lc = (LabelCell) a1;
                       stringa1 = lc.getString();
                     if (b2.getType() == CellType.NUMBER)
                       NumberCell nc = (NumberCell) b2;
                       numberb2 = nc.getValue();
                      if (c2.getType() == CellType.DATE)
                        DateCell dc = (DateCell) c2;
                        datec2 = dc.getDate();
                       // operate on dates and doubles
It is recommended to, use the close() method (as in the code piece below)   when you are done with processing all the cells.This frees up any allocated memory used when reading spreadsheets and is particularly important when reading large spreadsheets.
          // Finished - close the workbook and free up memory
          workbook.close();
The API class files are availble in the 'jxl.jar', which is available for download.
Regards
Raghu

Using IGS in Abap web dynpro application

Hi ,
I would like to develop an Abap web dynpro application with complex graphs.
There is an installation of IGS services.
In the layout screen I see only graphic basic options.
In thr internet I saw much more options in the graphic label. ( WD applic-> view-> layout ).
Does anyone know how to add this options to the view layout?
Thenks,

עיחיחןלכלןעל

Error using tabs in Web Dynpro application

Hi all,
I am working on a web Dynpro application where I want to use "tabs" to display different vendor details, basically I need two tabs one for header data, one for address data. What I did is I created a group and there created the element for the user to enter the vendor number and also created a button and binded it with the BAPI, now I created a tab using tabstrip and then inserting the tab and adding the element to the tab (in my case i m using the table type), once I finish this and try to do the syntax chek i am getting this error: "ACC: Element "TAB" does not have a header"
Can you please help me with this?
Thanks,
Rajat

Looks like i was missing some step... I deleted everything and then re created and this time it works.

Web Dynpro application calling external web server using HTTPS giving error

Hello,
I don't know whether this is the right question in this forum but my ABAP web-dynpro applicaiton is expected to call another HTTP application on external web server through HTTPS. Presently it is calling through plain HTTP but we want to have HTTPS.
Here are the steps that we followed based on the link from help.sap.com
1] Received the certificate files from external web server
2] Created SSL Anonymous client
3] Imported the certificate files under this client and added into the certificate list
4] Re-started ICM
5] Created RFC Destination of type HTTP to connect to external server with SSL option and basic authentication. This RFC destination was working under plain HTTP.
When tried with Test connection it gave error "ICM_HTTP_CONNECTION_FAILED".
Any idea what might be missing. Thanks in advance.
Regards
Rajeev

Used proper certificate after which the error went away

Web Dynpro ABAP Stylesheet - Portal Integration

We have a Web Dynpro ABAP being displayed through a Portal iView. The Portal server and the Web Dynpro ABAP server are separate. Our problem is in getting the Web Dynpro ABAP to use the stylesheet of the Portal.
We can make this work by forcing an external stylesheet (via application parameters, global Dynpro settings, or passed on the end of the URL), but we have to hard-code the full URI of the Portal stylesheet. This would be very hard to manage if we hard-code every iView's CSS location (or set every individual Web Dynpro's application parameters), and we want instead for the Portal to supply whatever the user's stylesheet is dynamically.
So what we want is: if we change the Portal stylesheet, the Portal would just pass the new stylesheet URI to our ABAP Web Dynpro iViews without manual modification of the iViews.
Here is an example of what works:
http://our-abap-server.com/sap/bc/webdynpro/sap/cprojects?sap-ep-themeroot=https://our-portal-server.com/irj/portalapps/com.sap.portal.design.portaldesigndata/themes/portal/ourportalstylesheetname
Shouldn't the Portal iView automatically pass sap-cssurl or sap-ep-themeroot to Web Dynpro ABAP? We have "Supply Portal Stylesheet" checked on the iView it just doesn't pass anything to the Web Dynpro ABAP. Why wouldn't SAP pass this parameter dynamically to the Web Dynpro ABAPs? Is this a product error?
There seems to be a great deal of confusion about this on the SDN message forums... I think this may be the core issue.
We are using a 7.0 SP13 Portal with an ECC 6.0 SP12 backend.

Now that you mention it, I ran into that exact same issue -- the application parameters didn't work for hard-coding the theme. The fix ended up being the web server semicolon thing I mentioned earlier (that was why the parameter didn't make it to the backend).
The themeroot is automatically sent to the backend from the portal, so you shouldn't really have to manually send it as a parameter anyways.
I'd suggest talking to your network guys. Also this could be the result of the SP you are on (we're on 13 for the portal and the backend system -- maybe this feature doesn't work in some earlier SP's?). There are also some options to force the theme as a WD application parameter on the backend side, which you could check into. Details on those are here:
[http://help.sap.com/saphelp_nw2004s/helpdata/en/7b/fb57412df8091de10000000a155106/frameset.htm]
Also you could look at the requests being made by installing HttpAnalyzer in your browser. You can inspect "post" parameters going from the portal to the backend system. One of those posts (the first one to the backend system) should contain the parameter sap-cssurl (same kind of thing as sp-ep-themeroot). This is where our problem turned up as this parameter was not being posted.
Lastly, make sure that your frontend portal and backend portal are in the same domain. For instance:
frontend.domain.com
backend.domain.com
If your backend and frontend are in different domains it messes all kinds of things up, including stylesheets I think. If you can't get around this, then read about domain relaxing (but I highly recommend getting the domains the same).
When we started, ours were:
portal.dx.company.com
sap.company.com
This created all kinds of problems. Putting our systems in the same domain with the same protocol and fixing our little semicolon web server problem fixed basically all of our portal complaints. Up until that time, we had also had many problems with session management (backend sessions were getting stuck until the HTTP timeout).
That's all I know. Good luck.

Download Excel file through Web dynpro with no windows open?

Can we have a web dynpro application that just returns an Excel file in the response with no open windows? Similar to a java servlet that is used to download a Excel file?
This basically means that I cannot use wdComponentAPI.getWindowManager().createNonModalExternalWindow()
Java Servlet Code
HttpSession session = request.getSession(); // get a handle on the session id
response.setContentType("application/download");
response.setHeader("Content-Disposition", "filename=RTIS_Report.xls");
PrintWriter out = null;
out = response.getWriter();
String report = request.getParameter("REPORT");
JCO.Table lines = download(request, session, report);
for (int i = 0; i < lines.getNumRows(); i++) {
 lines.setRow(i);
 String content = lines.getString("LINES") + "\n";
 out.write(content);
 out.flush();
out.flush();
out.close();

Hi,
I think you can use IWD Cached Web Resource to achieve this..
See the below code FYI..
public void downloadToExcel( )
 String fileName = "Customer" + ".xls";
 IWDCachedWebResource cachedExcelResource = null;
 try
 File f = new File("Customer.xls");
 WritableWorkbook workbook = Workbook.createWorkbook(f);
 WritableFont black = new WritableFont(WritableFont.createFont("Trebuchet MS"),WritableFont.DEFAULT_POINT_SIZE,WritableFont.BOLD,false,UnderlineStyle.SINGLE,Colour.BLACK);
 WritableCellFormat blackFormat = new WritableCellFormat(black);
 WritableFont blue = new WritableFont(WritableFont.createFont("Trebuchet MS"),WritableFont.DEFAULT_POINT_SIZE,WritableFont.NO_BOLD,false,UnderlineStyle.NO_UNDERLINE,Colour.BLUE);
 WritableCellFormat blueFormat = new WritableCellFormat(blue);
 WritableSheet sheet = workbook.createSheet("Customer", 0);
 Label label;
 String[] header={"Corporate Code","Batch ID"};
 for (int i=0;i<2;i++)
 label = new Label(i,0,header.toString(),blackFormat);
 sheet.addCell(label);
 WritableCellFormat integerFormat = new WritableCellFormat(NumberFormats.INTEGER);
 jxl.write.Number number;
 // Reading the contents
 for(int i=0;i<wdContext.nodeVn_DownloadToExcel().size();i++)
 String strCorpName = wdContext.currentContextElement().getVa_CorpCode();
 String strBatchID = wdContext.nodeVn_DownloadToExcel().getVn_DownloadToExcelElementAt(i).getVa_BatchID();
 label = new Label(0,i+1,strCorpName,blueFormat);
 sheet.addCell(label);
 label = new Label(1,i+1,strBatchID,blueFormat);
 sheet.addCell(label);
 workbook.setColourRGB(Colour.LIME, 0xff, 0, 0);
 workbook.write();
 FileInputStream excelCSVFile = new FileInputStream(f);
 IWDCachedWebResource cachedWebResource = null;
 if (excelCSVFile!= null)
 cachedWebResource = WDWebResource.getWebResource(excelCSVFile, WDWebResourceType.getWebResourceType("xls","application/ms-excel"));
 cachedWebResource.setResourceName(fileName);
 cachedExcelResource = cachedWebResource;
 wdContext.currentContextElement().setVa_DownloadToExcel(cachedExcelResource.getURL());
 workbook.close();
 catch (Exception ex)
 wdComponentAPI.getMessageManager().reportException("Error in Excel Download"+ex.getMessage(),false);
Regards,
Vijay

Basic of Web dynpro

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