OleDbCommandBuilder

public static DataSet UpdateRows(string connectionString, 
    string queryString, string tableName)
{
    DataSet dataSet = new DataSet();
    using (OleDbConnection connection = new OleDbConnection(connectionString))
    {
        OleDbDataAdapter adapter = new OleDbDataAdapter();
        adapter.SelectCommand = new OleDbCommand(queryString, connection);
        OleDbCommandBuilder cb = new OleDbCommandBuilder(adapter);

        connection.Open();

        adapter.Fill(dataSet, tableName);

        //code to modify data in DataSet here

        //Without the OleDbCommandBuilder this line would fail
        adapter.Update(dataSet, tableName);

        connection.Close();
    }
    return dataSet;
}