Web Dynpro for ABAP – Working with Horizontal Radio Buttons in a

12 Pages·2009·0.26 MB·English

by  Sreekanth Gollamudi

Web Dynpro for ABAP – Working with
Horizontal Radio Buttons in a Table
Applies to:
Web Dynpro for ABAP. ECC 6.0 onwards. For more information, visit the Web Dynpro ABAP homepage.
Summary
This article shows a step by step procedure for creating and working with radio buttons in a table row. This
can help new Web Dynpro ABAP developers in building complex applications.

Author : Sreekanth Gollamudi
Company : IBM
Created on : 11 July 2009
Author Bio
Sreekanth Gollamudi has around five years of experience which includes in Analysis, Design and
Development of complex software applications relating to SAP. He has very good experience in design and
development of FRICE objects and strong background in OOABAP, BSP and WebDynpro for ABAP.
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Web Dynpro for ABAP – Working with Horizontal Radio Buttons in a Table
Table of Contents
Introduction ........................................................................................................................................................ 3 
Creating a component ..................................................................................................................................... 3 
Context creation ........................................................................................................................................................... 3 
Context population ....................................................................................................................................................... 4 
View ............................................................................................................................................................................. 5 
Code ............................................................................................................................................................................. 8 
New table ..................................................................................................................................................................... 9 
WebDynpro Application ................................................................................................................................. 10 
Create a WebDynpro application ................................................................................................................................ 10 
Execute ...................................................................................................................................................................... 10 
Related Content ................................................................................................................................................ 11 
Disclaimer and Liability Notice .......................................................................................................................... 12 
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Web Dynpro for ABAP – Working with Horizontal Radio Buttons in a Table
Introduction
We will see how to build an application with radio buttons in a table row and how to get the changed radio
button values when an action triggered.
Creating a component
Create a WebDynpro component with name ZWD_RADIO

Context creation
Go to ComponentController’s context, create a node

Under context node create four attributes…Name, SelectedKey, Accept and Deny with type as STRING.
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Web Dynpro for ABAP – Working with Horizontal Radio Buttons in a Table

Context population
Write the below code in WDDOINIT of component controller. Here selectedkey valus is important when we
bing the data to a table.
METHOD WDDOINIT .

DATA: NODE TYPE REF TO IF_WD_CONTEXT_NODE,
IT_DATA TYPE IF_COMPONENTCONTROLLER=>ELEMENTS_RADIO,
WA_DATA LIKE LINE OF IT_DATA.

WA_DATA-NAME = 'Sachin'.
WA_DATA-SELECTEDKEY = 'a'.
WA_DATA-ACCEPT = 'X'.
WA_DATA-DENY = ' '.
APPEND WA_DATA TO IT_DATA.

WA_DATA-NAME = 'Dravid'.
WA_DATA-SELECTEDKEY = 'a'.
WA_DATA-ACCEPT = 'X'.
WA_DATA-DENY = ' '.
APPEND WA_DATA TO IT_DATA.
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Web Dynpro for ABAP – Working with Horizontal Radio Buttons in a Table

WA_DATA-NAME = 'Saurav'.
WA_DATA-SELECTEDKEY = 'b'.
WA_DATA-ACCEPT = ' '.
WA_DATA-DENY = 'X'.
APPEND WA_DATA TO IT_DATA.

NODE = WD_CONTEXT->GET_CHILD_NODE( NAME = 'RADIO' ).
NODE->BIND_TABLE( IT_DATA ).

ENDMETHOD.
View
Now map the component controller context to view context

Insert a table UI element on the view

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Web Dynpro for ABAP – Working with Horizontal Radio Buttons in a Table
Create 3 columns in a table, and first column as textview, second and thrird columns as radio buttons.
-> Bind the table columns with view context.
Bind the first column with the name of the view context

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Web Dynpro for ABAP – Working with Horizontal Radio Buttons in a Table
Bind the Second and Third column’s selectedKey property with the view context’s SELECTEDKEY.

Note: KeyToSelect should be different in each column and selectedKey should be same and should be binded with
same context node. For example, for the first radio button, I am passing keyToSelect as ‘a’ and next one as ‘b’ and
both are binded to same context node SELECTEDKEY. Depending on the value keyToSelect, we can write the code
on some action.

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Web Dynpro for ABAP – Working with Horizontal Radio Buttons in a Table
Put a button on the view and create action with name as ‘UPDATE’.

Code
Write the below code in the update action method.
METHOD ONACTIONUPDATE .

DATA : ITEMS_NODE TYPE REF TO IF_WD_CONTEXT_NODE,
IT_RADIO TYPE IF_MAIN=>ELEMENTS_RADIO,
WA_RADIO LIKE LINE OF IT_RADIO.

ITEMS_NODE = WD_CONTEXT->GET_CHILD_NODE( NAME = 'RADIO' ).
ITEMS_NODE->GET_STATIC_ATTRIBUTES_TABLE( IMPORTING TABLE = IT_RADIO ).
LOOP AT IT_RADIO INTO WA_RADIO.
CLEAR: WA_RADIO-ACCEPT,
WA_RADIO-DENY.
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Web Dynpro for ABAP – Working with Horizontal Radio Buttons in a Table
IF WA_RADIO-SELECTEDKEY = 'a'.
WA_RADIO-ACCEPT = 'X'.
ELSEIF WA_RADIO-SELECTEDKEY = 'b'.
WA_RADIO-DENY = 'X'.
ENDIF.
MODIFY IT_RADIO FROM WA_RADIO INDEX SY-TABIX.
ENDLOOP.

ITEMS_NODE->BIND_TABLE( IT_RADIO ).

ENDMETHOD.
New table
Create a new Table UI element on the view and bind - Name, Accept and Deny fields of view context to the
table UI element.

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Web Dynpro for ABAP – Working with Horizontal Radio Buttons in a Table
WebDynpro Application
Create a WebDynpro application

Execute
Execute the application and by default we will get the below screen

Now change the radio options and click on update button, will gives the below result.

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