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Dynamic population of F4 help in Webdynpro ABAP based on user's selection
By Kiruthika P, L & T Infotech
This article is to populate value (F4) help for an input field in Webdynpro ABAP screen based on value selected from value help of another field. This objective can be achieved without creating any action or event in Webdynpro ABAP by simply using Custom Dictionary Search help, which in turn reduces the complexity of using OVS in Webdynpro Component. In this way, it is possible to improve the performance and execution speed of the application.
To populate value (F4) help for an input field in Webdynpro ABAP based on value selected from value help of another field.
In this application, User has to get possible values of Item Number of purchase Document (EBELP) field in F4 help based on the selected value of Purchase Document Number(EBELN) .
1. Create one Webdynpro Component
Go to SE80 -> Create Webdynpro component.
Give name of Webdynpro component and click Display Icon.
Then it will show one pop up message to create the component.
2.Create the component with view and window.
Give the description for Webdynpro component.
3. Save the component in local object or package.
4. Create a custom Dictionary search help which should be binded to input fields.
Go to SE11 -> Select Search help -> Give name ->Create
Select Elementary Search help
Click Continue to proceed the creation of custom search help.
Give description of Search help.
Give required fields for which F4 help is needed in Webdynpro Application.
We have to create a custom search help for Item Number of purchase Document (EBELP) field and Purchase Document Number (EBELN) field.
Then Enter fields EBELN, EBELP, TXZ01 and enter the table name EKPO.
Then Save and Activate it.
5.Create a custom Structure and add all required fields for which F4 help shoulb be needed in Webdynpro Screen
Go to SE11 -> Select Datatype->Enter name of structure->Create
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