datatable merge - need to kill notifications

Question

I am merging a datable containing 5000 rows to another table. The main table has listchanged event implemented so as of now it gets notification events triggered 5000 times. We wanted to kill that so we added Merge operation between beginloadata and endloaddata but all it does it, it delays the 5000 events till the time we make endloaddata call.

is there any way to kill event notifications arising through datatable merge operation ?

All we want is to send may be only a single notification to the parent table that merge operation has happened.

Thanks a lot in advance! Amit