DataSet 載入資料

private void button1_Click(object sender, EventArgs e)
{
    DataSet ds = new DataSet();
    DataTable dt = new DataTable();
    dt.Columns.Add(new DataColumn("Product_ID", Type.GetType("System.Int32")));
    dt.Columns.Add(new DataColumn("Product_Name", Type.GetType("System.String")));
    dt.Columns.Add(new DataColumn("product_Price", Type.GetType("System.Int32")));
    fillRows(dt, 1, "product1", 1111);
    fillRows(dt, 2, "product2", 2222);
    ds.Tables.Add(dt);
    ds.Tables[0].TableName = "product";
    //ds.WriteXml("Product.xml");//儲存成 xml 檔
    this.dataGridView.Columns.Clear();
    this.dataGridView.DataSource = ds;
    this.dataGridView.DataMember = "product";
}
private void fillRows(DataTable dt, int pID, string pName, int pPrice)
{
    DataRow dr;
    dr = dt.NewRow();
    dr["Product_ID"] = pID;
    dr["Product_Name"] = pName;
    dr["product_Price"] = pPrice;
    dt.Rows.Add(dr);
}

string xmlString =
    "<?xml version=\"1.0\" encoding=\"utf-8\" ?>" +
    "<employees>" +
        "<employee>" +
            "<name>shioulo</name>" +
            "<hireDate>2012-04-23</hireDate>" +
            "<title>Manager</title>" +
        "</employee>" +
    "</employees>";
//讀入 xml 資料           
System.IO.StringReader reader = new System.IO.StringReader(xmlString);
DataSet dataSet = new System.Data.DataSet();
dataSet.ReadXml(reader);
//直接讀取檔案
dataSet.ReadXml("d:\\vs\\data.xml");
//透過 Reader 讀取檔案
XmlReader xml = XmlReader.Create("Product.xml", new XmlReaderSettings());
dataSet.ReadXml(xml);