ALV (ABAP List Viewer) provides all the default toolbar, menu bar, grids, sorters and etc to programmers. However in a recent case, Yip was unable to program the toolbar out. Function to call the toolbar was called however it would not come out.
If we call ALV_MERGE function, all the miscellanous default tools will be given. This time it wouldn't come out. Error said toolbar missing. What Yip did while i observe was, we went to Screen Painter (SE80) to modify the GUI Status. Copy the GUI status and its code into the original program.
Saved the coding (SE38) and reactivate it again.
There you have your toolbar out again.
The sky is not the limit...