System Data Oledb C# by API

using System;
using System.Data;
using System.Data.OleDb;
    public class UpdatingADataSource
    {
        static void Main(string[] args)
        {
            OleDbConnection MyConnection = new OleDbConnection(@"Provider=Microsft.Jet.OLEDB.4.0; Data Source = c:\MyAccessDB.mdb");
            OleDbDataAdapter MyAdapter = new OleDbDataAdapter("SELECT Column1, Column2, Column3 FROM MyTable", MyConnection);
            DataSet MyDataSet = new DataSet();
            MyAdapter.Fill(MyDataSet, "MyTable");
            MyDataSet.Tables[0].Rows[3]["Column3"] = "Test";
            OleDbCommandBuilder MyBuilder = new OleDbCommandBuilder(MyAdapter);
            MyAdapter.Update(MyDataSet.Tables[0]);
        }
    }