ALV Operations In Webdynpro for ABAP

Hello Experts,
I have a requirement in ALV table in which I want To make one column as link. On clicking of that link a textedit UI element should be created on the same page on top of ALV Table. Please Suggest me how to display textedit on the same page above the ALV table and also how to create link of the column.
Thanks,
Pratibha

Hi,
To create all the cells of a column as a link follow this thread:
Re: Creating hyperlink in column based on data, in ALV Web Dynpro ABAP
You have to set the cell editor as linktoaction. The corresponding click you can capture in event ON_CLICK ( define your own event handler for this ALV event ).
You can create a textedit box whose visiblity is bound to a context attribut of type wdy_boolean, on the event handler of click you can just change this attribute property and set it to true and bind it back.
Regards
Manas Dua

Similar Messages

How to loop through data of ALV grid in Webdynpro for Abap view

hello,
I have a view with an ALV component(SALV_WD_TABLE). I just want to loop through the lines shown (particularly when the user has set filter).
Can you help me to find how to reach the internal table ?
In summary, I want to know the reverse method of BIND_TABLE()
Thanks!

Not really...
Here is the solution :
DATA lo_ui TYPE if_salv_wd_table=>s_type_param_get_ui_info.
lo_ui = lo_interfacecontroller->get_ui_info( ).
DATA: lt_displayed TYPE salv_bs_t_int,
li_displayed TYPE int4.
lt_displayed = lo_ui-t_displayed_elements.
check not lt_displayed is initial.
loop at lt_displayed into li_displayed.
Regards

In webdynpro for ABAP alv table issue

hello gurus,
                  i am new for webdynpro for ABAP.i strucked at one point at designing time.anybody could you suggest me on this.
thanks in advance.
let me explain my scenario first.
in my webdynpro for ABAP developement i have one alv table having ten fields.i am featching the data for eight fields from one Ztabale and updating , for rest of two fields we need to fill after displaying output using the respective F4 help. Right now these two fields are in input editable mode.now i am getting the values successfully from F4 help and at the same time it is allowing MANUAL ENTRIES also but as per my requirement it should not allow any manual entries . for this i have made these two fields are in readonly mode as like as rest of fields to avoid the MANUAL ENTRIES but at this time i didnot get any F4 helpfor those two fields.
so how can i achive my goal in this thing could any one suggest me.
my final conclusion is we need to get only F4 help values into those two fields . it should not allow any manual values at any point of time.
best regards,
babu

ya hi harshit,
      my self also used same code in my action part . here i have one table with four fields carrid , connid , fldate , price.
for carrid i have created freely programmed search help.but if it is in display mode there is no F4 help in enable mode.
in context for attribute carrid
DATA lo_nd_flight TYPE REF TO if_wd_context_node.
DATA lo_el_flight TYPE REF TO if_wd_context_element.
DATA ls_flight TYPE wd_this->element_flight.
DATA lt_flight TYPE wd_this->elements_flight.
navigate from <CONTEXT> to <FLIGHT> via lead selection
lo_nd_flight = wd_context->get_child_node( name = wd_this->wdctx_flight ).
select connid fldate price from sflight into CORRESPONDING FIELDS OF TABLE
    lt_flight UP TO 20 ROWS.
@TODO handle non existant child
IF lo_nd_flight IS INITIAL.
ENDIF.
get element via lead selection
lo_el_flight = lo_nd_flight->get_element( ).
alternative access via index
lo_el_flight = lo_nd_flight->get_element( index = 1 ).
@TODO handle not set lead selection
IF lo_el_flight IS INITIAL.
ENDIF.
get all declared attributes
lo_el_flight->get_static_attributes(
   IMPORTING
     static_attributes = ls_flight ).
CALL METHOD lo_nd_flight->bind_table
EXPORTING
    new_items            = lt_flight
   set_initial_elements = ABAP_TRUE
   index                =
DATA: lo_cmp_usage TYPE REF TO if_wd_component_usage.
DATA: lo_interfacecontroller TYPE REF TO iwci_salv_wd_table.
    instantiate ALV component usage if necessary
lo_cmp_usage = wd_this->wd_cpuse_alv( ).
IF lo_cmp_usage->has_active_component( ) IS INITIAL.
    lo_cmp_usage->create_component( ).
ENDIF.
    pass reference to data node to instance of ALV usage
lo_interfacecontroller = wd_this->wd_cpifc_alv( ).
lo_interfacecontroller->set_data( r_node_data = lo_nd_flight ).
Configure ALV
DATA lr_config TYPE REF TO cl_salv_wd_config_table.
lr_config = lo_interfacecontroller->get_model( ).
**declerations
DATA: lt_columns TYPE salv_wd_t_column_ref,
        ls_columns TYPE salv_wd_s_column_ref,
        lr_input TYPE REF TO cl_salv_wd_uie_input_field,
        name TYPE string,
        lt_node_info TYPE wdr_context_attr_info_map,
        ls_node_info TYPE wdr_context_attribute_info,
        lv_tabix TYPE sy-tabix,
        lr_info TYPE REF TO if_wd_context_node_info.
TYPES: BEGIN OF ty_name,
          name TYPE string,
         END OF ty_name.
DATA: lt_name TYPE TABLE OF ty_name,
        ls_name TYPE ty_name.
**for getting node info
*Get the context node information
lr_info = lo_nd_flight->get_node_info( ).
lt_node_info = lr_info->get_attributes( ).
LOOP AT lt_node_info INTO ls_node_info.
    CASE ls_node_info-name.
      WHEN 'CARRID'.
        ls_name-name = ls_node_info-name.
        APPEND ls_name TO lt_name.
     WHEN 'REGIONALOFFICER'.
       ls_name-name = ls_node_info-name.
       APPEND ls_name TO lt_name.
     WHEN 'INSPECTORNAME'.
       ls_name-name = ls_node_info-name.
       APPEND ls_name TO lt_name.
    ENDCASE.
ENDLOOP.
*Logic for Table Horizontal Scrolling
lr_config->if_salv_wd_table_settings~set_visible_row_count( 13 ).
" lr_config->if_salv_wd_table_settings~set_width( '1085' ).
lr_config->if_salv_wd_table_settings~set_width( '100%' ).
lr_config->if_salv_wd_table_settings~set_scrollable_col_count( 8 ).
" lr_config->if_salv_wd_table_settings~set_fixed_table_layout( abap_true ).
lr_config->if_salv_wd_table_settings~set_first_visible_scroll_col( 'CARRID' ).
lr_config->if_salv_wd_table_settings~set_cell_action_event_enabled( abap_true ).
Set the table editable .
DATA: lr_table_settings TYPE REF TO if_salv_wd_table_settings.
lr_table_settings ?= lr_config.
lr_table_settings->set_read_only( abap_false ).
lr_table_settings->set_read_only( abap_true ).
DATA: lr_column_settings TYPE REF TO if_salv_wd_column_settings,
        lr_column TYPE REF TO cl_salv_wd_column.
DATA: lt_string TYPE STANDARD TABLE OF string,
        ld_string TYPE string,
        ld_int TYPE i,
        lv_index TYPE i.
Make few columns editable and attach inputfield, if permitted.
    DATA lr_input_field TYPE REF TO cl_salv_wd_uie_input_field.
    CLEAR lt_string.
    APPEND 'CARRID' TO lt_string.
    LOOP AT lt_string INTO ld_string.
      lr_column_settings ?= lr_config.
      lr_column = lr_column_settings->get_column( ld_string ).
      CREATE OBJECT lr_input_field
        EXPORTING
          value_fieldname = ld_string.
      lr_input_field->set_read_only( abap_true ).
      lr_column->set_cell_editor( lr_input_field ).
    ENDLOOP.
    CLEAR lt_string.

WDA: TreeByNestingTableColumn and ALV in webdynpro for ABAP

Hi,
1) I am trying to implement a tree with nested structure and multiple columns. I am using RecursionNode in the context and UI element TreeByNestingTableColumn. I am not able to figure out how to make a distinction between the key and parent key. In TreeByKeyTableColumn, we use key and parent key to differentiate. Is there any link which explains how to implement TreeByNestingTableColumn in Webdynpro for ABAP? (I got a link for webdynpro for java though).
2) Can ALV be used to implement a tree structure instead of using Table with TreeByNestingTableColumn or TreeByKeyTableColumn? Then I would be readily able to use ALV features like sort etc. If it can be used is there any link which explains how to do it in Webdynpro for ABAP?

Hi Srinivasa,
I can answer the first point. If you use a recursive node and TreeByNestingTableColumn, there is no need to have a rowKey and parentRowKey, since the recursion with the context already defines the hierarchy. As far as I know someone posted a blog that explains how to use the TreeByNestingTableColumn in Web Dynpro Java. I don't have the link available, but this blog would be good place to start. The implementation in WDA and WDJ is pretty much the same here.
Kind regards,
Thomas

Issue regarding cell action in webdynpro for abap alv

hello gurus,
       i have one requirement in webdynpro for abap alv.i have one alv table in that i have one coloun employee name.
for that i have provided F4 help and that is editable field.if i select value from F4 help it is getting value correctly and it is showing properly at the same time it is allowing values entered manually insted of from F4 help.but as per my requiremnet it should not allow any manually entered values.how can i get this functinality. i am not aware indepth od WDA.
could you go through my isssue and could you revert me some solution.
thanks in advance.

Hi,
   I dont think this is possible because when you can change the value using F4 then it would obviously be
   possible to enter manually.
   You can try using a drop down instead because in drop down you cannot enter values manually,
   But this would be good if the values that can be shown in drop down are very low, if the values are more
   then again user will face problems selecting values.
   Else you can try out what srinivas suggested, But dont know whether we can have two cell editors at a time
   inside a single cell of ALV. Please post the answer if you have found any other way to do it.

How to make cell editable alv in WebDynpro for ABAP?

I make Column editable ALV.(See under source code)
But I can't make Cell editable ALV.
How to make Cell editable ALV in WebDynpro for ABAP?
and..how to get changed data?
DATA: l_value TYPE REF TO cl_salv_wd_config_table.
l_value = l_ref_interfacecontroller->get_model( ).
* { EDITABLE
DATA: lr_column_settings TYPE REF TO if_salv_wd_column_settings,
        lr_input_field     TYPE REF TO cl_salv_wd_uie_input_field,
        lr_column          TYPE REF TO cl_salv_wd_column.
lr_column_settings ?= l_value.
lr_column = lr_column_settings->get_column( 'TOTAL_COUNT' ).
CREATE OBJECT lr_input_field
    EXPORTING
      value_fieldname = 'TOTAL_COUNT'.
lr_column->set_cell_editor( lr_input_field ).
DATA: lr_table_settings TYPE REF TO if_salv_wd_table_settings.
lr_table_settings ?= l_value.
lr_table_settings->set_read_only( abap_false ).

the code seems to be correct....but where are you writing it?
put the code in the wddoinit method and it should work.
have a look at this article..
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/3133474a-0801-0010-d692-81827814a5a1

DIfference Between OOPS ALV and WEBDYNPRO FOR ABAP ALV?

Hi to All,
i want some information that What is main difference when we develop ALV Report in OOPS and WEBDYNPRO For ABAP.which is good n in what way it is good?
In the Same way I m also want know that WHICH IS BETTER AMONG WEBDYNPRO FOR JAVA/ABAP.In which way?
Regards,
Ravi K

Thanku for ur valuble Information.
could u give me information regarding OOPS ALV and WEBDYNPRO FOR ABAP ALV?which is better?is there differences?
Edited by: ravi k on Mar 26, 2008 12:23 PM

WEBDYNPRO FOR ABAP ALV单元格的颜色问题

WEBDYNPRO FOR ABAP 的 ALV 的某一个字段的单元格，现在需要把单元格的边框的颜色，改成红色，请问大家有做过的吗？

看一看：http://wiki.sdn.sap.com/wiki/display/Snippets/ABAPWebDynproALV-ChangeCellColourbasedonContent

How to create an editable table in webdynpro for ABAP? Help!

Hi Experts,
I have a requirement where I have to create a webdynpro for ABAP table for new row/rows entry, delete row/rows and update row/rows data. This is something like table control in normal ABAP.
how can I achieve this? Is there any such feature in ALV component?
Any code sample will be really helpfull.
Please help!
Thanks
Gopal

Hi,
yes, the ALV is integrated into WDA, have a look at this: http://help.sap.com/saphelp_nw2004s/helpdata/en/74/fd4142646ab46be10000000a155106/frameset.htm
Regards, Heidi
PS: look at the WDA Knowledge Center under https://www.sdn.sap.com/irj/sdn/developerareas/abap?rid=/library/uuid/02e1fa45-0801-0010-10a0-f1cf47e8c943, there you can find several ALV tutorials
Message was edited by: Heidi von Geisau

Excel File Upload In Webdynpro For ABAP

Hi All,
I have a doubt regarding EXCEL file upload for Webdynpro for ABAP.
I am able to get the path of file using 'FILEUPLOAD' UI element.Now I need to upload the EXCEL file into ALV.I have tried out with GUI_UPLOAD and other excel upload function module.But these Function Module throws Dump.
Can you please suggest how to go about it.It will be a great help if u can suggest any function module or method.

Hi Amita,
Insetad of using GUI_UPLOAD use 'HR_KR_XSTRING_TO_STRING'
Here is the sample code,
TYPES :BEGIN OF str_itab,
              name(10) TYPE c,
              age(10) TYPE c,
             END OF str_itab.
DATA : t_table1 TYPE STANDARD TABLE OF str_itab,
       i_data TYPE STANDARD TABLE OF string,
               lo_nd_sflight TYPE REF TO if_wd_context_node,
                lo_el_sflight TYPE REF TO if_wd_context_element,
                l_string TYPE string,
        fs_table TYPE str_itab,
                l_xstring TYPE xstring,
fields TYPE string_table,
lv_field TYPE string.
DATA : t_table TYPE if_main=>elements_data_tab,
data_table TYPE if_main=>elements_data_tab.
* get single attribute
wd_context->get_attribute(EXPORTING name = `DATASOURCE`
                          IMPORTING value = l_xstring ).
CALL FUNCTION 'HR_KR_XSTRING_TO_STRING'
EXPORTING
in_xstring = l_xstring
IMPORTING
out_string = l_string.
SPLIT l_string AT
cl_abap_char_utilities=>newline INTO TABLE i_data.
* Bind With table Element.
LOOP AT i_data INTO l_string.
SPLIT l_string AT cl_abap_char_utilities=>horizontal_tab INTO TABLE
fields.
READ TABLE fields INTO lv_field INDEX 1.
fs_table-name = lv_field.
READ TABLE fields INTO lv_field INDEX 2.
fs_table-age = lv_field.
APPEND fs_table TO t_table1.
ENDLOOP.
lo_nd_sflight = wd_context->get_child_node( 'DATA_TAB' ).
lo_nd_sflight->bind_table( t_table1 ).
ENDMETHOD.
if correct give correct answer
Thanks & Regards,
Meenachi.R

WebDynpro for ABAP Vs Java

Hi all,
I have recently started learning Web Dynpro for ABAP.
I have worked in WebDynpro for Java.
1)I wanted to understand pros and cons of WebDynpro for ABAP and Java.
2)What are the functionality that are available in Web Dynpro for Java but not in Web Dynpro for ABAP.
3)What should be preferred when considering performance issues - WD for ABAP of Java?
Any Web Log or Link in this context will be helpful.
Thanks a lot,
Rashmi

Hi,
OOPs ABAP uses Classes and Interfaces which uses Methods and events.
If you have Java skills it is advantage for you.
There are Local classes as well as Global Classes.
Local classes we can work in SE38 straight away.
But mostly it is better to use the Global classes.
Global Classes or Interfaces are to be created in SE24.
SAP already given some predefined classes and Interfaces.
This OOPS concepts very useful for writing BADI's also.
So first create a class in SE 24.
Define attributes, Methods for that class.
Define parameters for that Method.
You can define event handlers also to handle the messages.
After creation in each method write the code.
Methods are similar to ABAP PERFORM -FORM statements.
After the creation of CLass and methods come to SE38 and create the program.
In the program create a object type ref to that class and with the help of that Object call the methods of that Class and display the data.
see the links below, Understand them and start developing.
chk out the links below:
General Tutorial for OOPS
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/e8a1d690-0201-0010-b7ad-d9719a415907
Have a look at these links for OO ABAP.
http://www.sapgenie.com/abap/OO/
http://help.sap.com/saphelp_nw04/helpdata/en/c3/225b5654f411d194a60000e8353423/content.htm
http://www.esnips.com/doc/375fff1b-5a62-444d-8ec1-55508c308b17/prefinalppt.ppt
http://www.esnips.com/doc/2c76dc57-e74a-4539-a20e-29383317e804/OO-abap.pdf
http://www.esnips.com/doc/5c65b0dd-eddf-4512-8e32-ecd26735f0f2/prefinalppt.ppt
http://www.allsaplinks.com/
http://www.sapgenie.com/abap/controls/index.htm
http://www.esnips.com/doc/2c76dc57-e74a-4539-a20e-29383317e804/OO-abap.pdf
http://www.esnips.com/doc/0ef39d4b-586a-4637-abbb-e4f69d2d9307/SAP-CONTROLS-WORKSHOP.pdf
http://help.sap.com/saphelp_erp2005/helpdata/en/ce/b518b6513611d194a50000e8353423/frameset.htm
SDN Series:
https://www.sdn.sap.com/irj/sdn/developerareas/abap?rid=/webcontent/uuid/35eaef9c-0b01-0010-dd8b-e3b0f9ed7ccb [original link is broken]
http://help.sap.com/printdocu/core/Print46c/en/data/pdf/BCABA/BCABA.pdf
Basic concepts of OOPS
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/b6cae890-0201-0010-ef8b-f970a9c41d47
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/1591ec90-0201-0010-3ba8-cdcd500b17cf
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/library/webas/abap/abap%20code%20samples/alv%20grid/abap%20code%20sample%20to%20display%20data%20in%20alv%20grid%20using%20object%20oriented%20programming.doc
http://www.henrikfrank.dk/abapuk.html
http://www.erpgenie.com/abap/OO/
OOPS in ABAP
oops consept in abap
ABAP with OOPS
http://www.abap4.it/download/ALV.pdf
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/e8a1d690-0201-0010-b7ad-d9719a415907
http://www.erpgenie.com/abap/controls/alvgrid.htm
OOPS with ABAP
https://www.sdn.sap.com/irj/sdn/wiki?path=/pages/viewpage.action&pageid=37566
/people/rich.heilman2/blog/2005/07/27/dynamic-internal-tables-and-structures--abap
http://www.sapgenie.com/abap/OO/
Regards
Srinivas.K
Message was edited by:
Armin Reichert

How can we benefit from WebDynpro for ABAP over Normal ABAP

Dear Guru's,
Please guide me what are +Ves of WebDynpro over Normal ABAP. Once all Applications are developed how can we organize them. For Example In SD module there is sequence of Tcodes to be executed this is true for all modules . Is there any concept involved in this new technology.
For What purpose we can suggest someone to implement in an Organization.
Many Thanks in Advance.
Regards
Ram

Hi Ram,
Here Are some comparisions I made w.r.t Webdynpro for ABAP (also some benifits over Java):
1     "Pros:it will be easier to move your development project through the system landscape if both the UI and business logic are in the same development environment.(Update: This is is less of a concern now that CTS+ lets you bundle your WD Java UI developement with ABAP development objects into a single transport, with SPS13. )
2     tons of custom ABAP business logic is easier to access via WD for ABAP
3     WD for ABAP has a code wizard, so easy to build
4     SAP List Viewer and ALV handled better
5      The biggest thing is the NWDI. Most of the SAP customer have ABAP stack, but not everyone has the Java stack. To develop WD Java you need to set up the NWDI envrionment, like SLD, CMS, CBS, DTR, etc. which is a huge effort if you don't have them in place. While for WD ABAP, the environemnt is normally there as given for most of customers if they have the right version.
6     If your business is in SAP system, I would prefer WD ABAP. There are many WD components available in WD ABAP like select-option, Alv table, F4-help which are not available in WD Java. Beside in WD ABAP you can deal the context node in form of internal table which is much more performant than dealing with the contextelement which is the case for WD Java.
Regards,
Tanaya
Edited by: Tanaya A on Dec 10, 2009 6:19 PM

Webdynpro for ABAP - Textdirection top - bottom ???

Hi all,
is there any ui-element which enables textdirection top -> bottom or supprts HTML tags to realize this simple requirement ????
Thx !!!

I understand this, but if you implement right->Left and Left->Right you should also think about top->bottom & bottom->top, also there is a FormatedTexView with some HTML support but this has no style and can't be embedded as a Celleditor into the ALV... And also the fixed colors for ALV Cells i don't understand why there should be a limitation of colors for cells in CL_WD_TABLE_COLUMN=>E_CELL_DESIGN
I really like and enjoy the WebDynpro for ABAP concept but sometimes i feel really sad for such limits like i mentioned because that is basic layout stuff.....

Webdynpro for ABAP call non-SAP webservice

Hi,
We have a WAS 7.0 ABAP only, Can we use webdynpro for ABAP to call a Notes's webservice or Weblogic's webservice.
Where can I get the document link?
Edited by: Jeff Lien on Jan 8, 2008 10:47 AM
Edited by: Jeff Lien on Jan 8, 2008 10:49 AM

Hi this will help u.
Web Dynpro ABAP
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/db22242d-0701-0010-28a2-aeaa1fefd706
Hope that the following also helps you.
Web Dynpro for ABAP (WD4A, WDA) is the SAP standard UI technology for developing Web
applications in the ABAP environment. It consists of a runtime environment and a graphical
development environment with special Web Dynpro tools that are integrated in the ABAP
Workbench (SE80).
Web Dynpro offers the following advantages for application developers:
The use of declarative and graphical tools significantly reduces the implementation
effort
Web Dynpro supports a structured design process
Strict separation between layout and business data
Reuse and better maintainability by using components
The layout and navigation is easily changed using the Web Dynpro tools
Stateful applications are supported that is, if the page is changed and the required
data remains intact so that you can access it at any time throughout the entire
application context.
Note that stateless applications are not possible.
Automatic data transport using data binding
Automatic input check
Automatic operation of the Web Dynpro application using the keyboard
User interface accessibility is supported
Full integration in the reliable ABAP development environment
Web Dynpro Architecture
Definition
Web Dynpro is the SAP NetWeaver programming model for user interfaces (UIs).
The Web Dynpro model is based on the Model View Controller paradigm, and has the
following features that build on the classic dynpro model:
Clear separation of business logic and display logic
Uniform metamodel for all types of user interfaces
Execution on a number of client platforms.
Extensive platform independence of interfaces
Structure
Metamodel Concept
Web Dynpro provides support for developing Web representation of a business application.
You use specific tools to describe the properties of a Web Dynpro application in the form of
Web Dynpro metadata. The necessary source code is then generated automatically and
executed at runtime. In addition to the events offered by the framework, you can also define
your own events for a Web Dynpro application. However, the event handling must always be
programmed in separate source code areas which are executed automatically when the event
is triggered at runtime.
In Web Dynpro, each user interface is always made up of the same basic elements. These
elements of the metamodel can be statically declared using Web Dynpro tools.
It is also possible to implement elements of the metamodel at runtime and to change them or
reintegrate them at runtime. Using these implementations, you can make any changes or
enhancements to a user interface that has been created by declarative methods by
generating new interface structures at runtime.
This means that you can combine declarative processes and the implementation of source
code.
Graphical Development Tools
To support this declarative concept, both the SAP NetWeaver Developer Studio and the
ABAP Workbench contain a range of Web Dynpro tools. You can therefore generate a large
proportion of a Web Dynpro application using the tools provided, without having to create your
own source code. This applies to the following parts of the application:
Data flow between the front end and back end
Layout of the user interface
Properties of user interface elements
The Web Dynpro tools enable you to create source text areas manually within generated
source texts. These areas are not changed if the source code is regenerated.
Separation of Business and Application Logic
Using Web Dynpro enables a clear separation of business logic and display logic. A Web
Dynpro application runs on the front end and has local or remote access to the back end
system via a service. This means that the display logic is contained in the Web Dynpro
application, while the business logic and the persistence of the business objects run in the
back end system. The following options are currently available for connecting Web Dynpro
applications and the back-end system:
An interface generated using adaptive RFC, through which BAPIs of an SAP system
can be called
An interface for calling Web services
A self-generated interface
The source code required for connecting the Web Dynpro application can be generated
from a UML definition of the Web Dynpro interface. A UML definition can be imported
into the Web Dynpro tools as an XML file.
Conversion of the Model-View-Controller
Conversion of the Model-View-Controller Programming Model
Every Web Dynpro application is structured according to the Model View Controller
programming model:
The model forms the interface to the back end system and thus enables the
Web Dynpro application access to data.
The view is responsible for the representation of the data in the browser.
The controller lies between the view and the model. The controller formats
the model data to be displayed in the view, processes the user entries made by the
user, and returns them to the model.
/people/thomas.jung/blog/2006/06/20/web-dynpro-abap-demonstration-videos
http://help.sap.com/saphelp_nw04s/helpdata/en/77/3545415ea6f523e10000000a155106/frameset.htm
with regards,
Hema.
pls give points if helpful.

Webdynpro for ABAP materials

anyone please send me materials for webdynpro for abap which covers webdynpro architecture like mvc controller and everything

Hi Ganesh,
Welcome to Web Dynpro ABAP !
In web dynpro ABAP we follow MVC(Model View Controller) architecture.
In this object oriented ABAP is used to provide background functionality. Here, your ABAP skills can be utilized to the fullest. Programming in web dynpro ABAP is different than conventional ABAP programming. Here we strictly follow MVC architecture in terms of controller interface. Also there are many wizards available so that we can directly pick the code from wizards.
e.g 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]
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 .
Hope I have helped you .
Cheers,
Darshna.

ALV Operations In Webdynpro for ABAP

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