hi all
i have datagrid within i can add records delete records through some comboboxes which collects data.

when i add new row - i create manually new row and check comboboxes validations and the add the new row to the appropriate table in the dataset. then when i want to edit the row it gives me an error - more over when i want to update the database with the update command for the dataadapter - its gives me an error. (i have feeling that im not working correct) - can someone guide me when do i update the database?
how do i edit records from the datagrid, delete it and then update the database? in guidance......direction......