Handle Buttons Active/Not Active for FORM UIBBs

You should call the super class method towards the end of the processing in method GET_DATA, so that the buttons Previous and Next on the screen are set to inactive or active. This depends on if after the current event has finished processing there actually is a previous or next entry in the set of values, if not, the buttons are greyed out. You must simply pass the currently selected value and the list of values, the rest is done for you.

Example Example

Code example for handling button activation:

End of the example.

Syntax Syntax

```
me->handle_prev_next_activation(
```

		iv_value       = <ls_report_data>-year

		it_value_list  = <ls_field_usage>-fixed_values ).

End of the code.