Abap Alv Oops Interview Questions And Answers [ Proven 2024 ]

ABAP ALV (ABAP List Viewer) using Object-Oriented Programming (OOP) is a cornerstone of modern SAP development. Moving away from function modules like REUSE_ALV_GRID_DISPLAY , the OOP approach leverages the CL_GUI_ALV_GRID class or the newer SALV (SAP List Viewer) model. Understanding this shift is essential for any senior ABAP developer. Core Concepts of ALV OOP

2. How do you handle events like "Double Click" or "Hotspot Click" in OOP? Abap Alv Oops Interview Questions And Answers

At the heart of ALV OOP is the separation of the data container and the display container. Unlike functional ALV, where the system handles the screen logic, OOP ALV requires a custom container ( CL_GUI_CUSTOM_CONTAINER ) or a docking container to sit on a screen (Dynpro). Core Concepts of ALV OOP 2

While you can use LVC_FIELDCATALOG_MERGE , it is often considered best practice in OOP to build the field catalog manually or via a DDIC structure to ensure performance and prevent metadata inconsistencies. The SALV Alternative Unlike functional ALV, where the system handles the

This is a common "gotcha" question. When a user types in an editable ALV, the backend internal table is not updated until the data is validated. Calling grid->check_changed_data manually triggers the validation and synchronizes the frontend grid with your backend internal table. 5. How do you refresh the ALV after data modification?