Comments by Amir_ait (Top 1 by date)

I dont have database.
On the second approach,there are some issues:
1. I have a complex user Control(which is basically a table of combobx and textbx in each row with variable number of rows) , which will be created several times depending on the end-user request.
2. some calculation will be triggered by importing new data
3. By clicking some buttons imported data will be verified and labeled as OK.
4. Properties of the controls are also of importance(not just their values).
What I mean there is highly likely to miss, critical event or property or value, by the second method.

Is there any option to safely save all the complications ?