Thanks for your time to reply,
now I have bit idea of bound control.
One more thing; this mean If I need to connect to data base say "Oracle" then what we need to do? which option to use below
1. use ado control and place on form then set its parameters [as explain by you in #2]
2. manually write syntax in form load like CNN.Connect "Provider microsoft for oracle username ; scott Password=tiger ; database=orcl" {something like this}.
I generally use 2nd option.
could any one please help me is it a bad practice. or I am on the right track unfortunately.
is 2nd otiopn is unbound control.
Thanks
Balaram Prajapati