ABAP_to_the_Future

10
ALV SALV Reporting Framework
At this point, everything is complete. If you run the report and click the Make
Data Editable button, then (as Figure 10.14 shows) the grid becomes editable.
Figure 10.14 Editable SALV Grid
Note
In fact, there should be no need for a work around like this, because since February 8,
2008, the SAP Community Network has been petitioning SAP to make CL_SALV_TABLE
editable by default, but to no avail. (I’ve proposed making February 8 International Editable
SALV Day and making a big fuss about this topic on this day each year.)
10.5 Handling Large Internal Tables with CL_SALV_GUI_
TABLE_IDA
You may have presumed that ALV in all its forms, ev en new ones like SALV, is
dead in the water, that in the future all our UIs will use SAPUI5 or some such, and
that the poor old ALV will be ancient history. Although that may well be the case
a long time down the track, the fact is thatcurrently it’s likely that all your reports
will be based on ALV technology of one sort or the other and run in the SAP GUI.
In recognition of this, SAP has not stood st ill in regard to innovation in the area
of SALV and has come out with the co ncept of SALV with IDA, where “IDA”
stands for integrated data access. A new class, CL_SALV_GUI_TABLE_IDA, has been
created for the purpose of dealing with really large internal tables (more than
100,000 rows of data). Traditional prog rams get into trou ble dealing with so
much data at once. You might run out of memory, and paging down will most
probably cause a delay; even with small tables, an ALV grid sometimes goes all
white for a second as you page down.
454