[RESOLVED] Accessing DataTables from Windows Form

[Wild Thing]

Hi, just started playing around with C#, and ran promptly into a problem. So here is -I think - a common newbie question:
Using VS9 and .NET 4.0, I used the designer to construct a solution with a dataset (DataSet1) with DataTables(DataTable1,DataTable2) and a Windows Form (Form1) with Datagridviews for the Tables - no own coding so far. Then I tried to access a Table from Form1, which failed.

DataSet1:

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;

namespace CSWF {

    public partial class DataSet1
    {

    }
}

Form1:

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;


namespace CSWF
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();

       
//My attempt to deal with the data tables:     
            try
            {
                 DataTable1.ReadXML("Set1.XML",System.Data.XmlReadMode.Auto);

            }
            catch (System.IO.FileNotFoundException ex)
            {
                Console.WriteLine(ex.Message);
            }
        }
}

How can I enable Form1 to access DataTable1 ?

Thx adv.