first thanks for all those who will reply this massage
ill try to make it shorten - in generally im tyron in vb.Net and i try to update mdb file from userform
i have
1. dsCompanies - dataset
2. T_Companies - datatable
T_ConnectionDetail - datatable
that connected 1:m - so each company can have many connection details.
3. i have 2 grids
a. - grdcompanie - displays the companies
b. - grdConnway - the many connections for each company
when i stands on the companies grid i can see its all connections.
4. i have add button which opens form
in that form i have some textboxes.

i wish the user:
1. when he press on company on the grid and click the button the form will open and the user will add new connection for the selected company.

so till the form opens its ok - but how do i bind the txtboxes to the tables separately and update the database with the data in the textboxes for the propriate company

sorrryyyy for the long and complicated question - each answer will be more then appreciated