Page History
...
If a custom data handler reusable part is created, it must extend VF_AC024, the Table Data Handler ancestor class, and redefine the methods included in the ancestor class. The default behavior can be optionally included by calling the ancestor methods in the redefined methods first. See comments in UF_TDH01 for more details.
See Code Table Definition/ Reusable Part Data Handler (ID) and Code Table Definition/ Use a Reusable Part.