Handler data_changed in ALV

Hello All,

I am using the handler Data_changed.

Here the table "er_data_changed" is filled when a field is modified in the alv.

But when the F4 for a field is used, then the "er_data_changed" is getting refreshed i.e, the other old modified value are lost.

I do not want the old modification to be lost.

Thanks,

Nishanth.