How do I copy access datatable from one dataset to another

   private void btnDabog_Click(object sender, EventArgs e)
        {
         
DataSet busicDataSet = new DataSet();
DataSet relacijeDataSet1 = new DataSet();

            con = new System.Data.OleDb.OleDbConnection();
            con.ConnectionString = "PROVIDER=Microsoft.Jet.OLEDB.4.0;Data Source=D:/busic.mdb";
            con.Open();
            MessageBox.Show("busic OPEN");
          
            string sql = "SELECT * From Vatin_Vrsac";

            da = new System.Data.OleDb.OleDbDataAdapter(sql, con);
            da.Fill(busicDataSet, "Vatin_Vrsac");

            conR = new System.Data.OleDb.OleDbConnection();
            conR.ConnectionString = "PROVIDER=Microsoft.Jet.OLEDB.4.0;Data Source=D:/Relacije.mdb";
            conR.Open();
            MessageBox.Show("Relacije OPEN");

     
            string sqlR = "SELECT * From TableBla";

            daR = new System.Data.OleDb.OleDbDataAdapter(sqlR, conR);
            daR.Fill(relacijeDataSet1, "TableBla");



            DataTable copyTable1 = new DataTable();



            copyTable1 = busicDataSet.Tables["Vatin_Vrsac"].Copy();

            DataTable dt1 = busicDataSet.Tables["Vatin_Vrsac"];

            DataTable dt2 = new DataTable();
          
            dt2 = dt1.Copy();
            relacijeDataSet1.Tables.Add(dt2);
            dataGridView1.DataSource = relacijeDataSet1.Tables[1];
            relacijeDataSet1.AcceptChanges();

            daR.Fill(relacijeDataSet1, "dt2");


            //tip : Before Creating New File First Check if Database Exist by System.IO.File.Exsist() so there //will be no error

            CatalogClass cat = new CatalogClass();

            cat.Create(@"Provider=Microsoft.Jet.Oledb.4.0;Data Source=D:/NewDatabase.mdb");



            //Create table in New Created Database

            OleDbConnection connection = new OleDbConnection(@"Provider=Microsoft.Jet.Oledb.4.0;Data Source=D:/NewDatabase.mdb");

            connection.Open();

            OleDbCommand olecom = new OleDbCommand("create table TestTable([Id] Number,[Username] Text,[Password] Text)", connection);
             //OleDbCommand olecom = new OleDbCommand("SELECT * INTO TestTable FROM Vatin_Vrsac", connection);
             //OleDbCommand olecom = new OleDbCommand("SELECT  Table1  INTO  Table1  IN  'NewDatabase.mdb' FROM  Table1", connection);
            //OleDbCommand olecom = new OleDbCommand("SELECT * INTO TestTable In 'D:/NewDatabase.mdb' FROM TestTable", connection);

            olecom.ExecuteNonQuery();


            // Iterate through each row and Write it in table

            /*    foreach (DataRow r in ds2.Tables[0].Rows)
                {

                    int id = Convert.ToInt32(r["id"]);

                    string uname = r["Username"].ToString();

                    string pass = r["Password"].ToString();

                    olecom = new OleDbCommand("insert into TestTable([Id],[Username],[Password]) values(@Id,@Username,@Password)", connection);

                    olecom.Parameters.AddWithValue("@Id", id);

                    olecom.Parameters.AddWithValue("@Username", uname);

                    olecom.Parameters.AddWithValue("@Password", pass);

                    olecom.ExecuteNonQuery();

                }
                */

            //Close the Connection

            connection.Close();




      

      
                con.Close();
                con.Dispose();
                conR.Close();
                conR.Dispose();

            
              
            }