Hi,
Create a table structure and instantiate the Datatable. Add column to the data table structure.
you bin this table to a datagrid.
After you accept the data, You can update the database using update method of the DataAdapter. This method is responsible for examining the RowState property of each of the DataRow objects in the Rows collection. The RowsCollection is a member of each of the DataTable objects contained in the Tables collection of the dataset.
Ex: myAdapter.Update(myDataSet.GetChanges,"Table1")
You can refer this Title: Database programming using
VB.net and Sql server 2000"
Regards
bhar