The CL_SALV_TABLE class is often preferred for simple, read-only displays. It uses a "Factory" pattern ( cl_salv_table=>factory ). It is much faster to implement because it doesn't require a screen or container definition, but it is intentionally limited—it does not support cell-level editing without significant workarounds. Summary Table: Key Classes Class Name CL_GUI_CUSTOM_CONTAINER Binds the ALV to a specific area on a GUI screen. CL_GUI_ALV_GRID The engine that renders and manages the grid data. LVC_S_FCAT Structure for defining column attributes (Field Catalog). LVC_S_LAYO Structure for defining overall grid appearance (Layout).
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). Abap Alv Oops Interview Questions And Answers
For cell-level control, add a "style table" (type LVC_T_STYL ) to your internal data structure and map it in the layout structure using STYLEFNAME . 4. What is the purpose of the check_changed_data method? The CL_SALV_TABLE class is often preferred for simple,
To enable editing, you must modify the Field Catalog ( LVC_S_FCAT ). Set the EDIT field to 'X' for the desired column. Use the method set_ready_for_input on the grid instance. To enable editing
1. What is the fundamental difference between Functional ALV and OOP ALV?