分不多..求帮助

求帮助..新人分不多..
我将一个类串行化后.如何将串行化得到的XML..直接存入数据库.而不是写入一个文件
public class product
{
    private int prodId = 123;
    private string prodName = "YELLOW";
    private bool discont;

    [XmlAttributeAttribute(AttributeName = "ProdId")]
    public int prodIdValue
    {
        get { return prodId; }
        set { prodId = value; }
    }

    [XmlElementAttribute()]
    public string prodNameValue
    {
        get { return prodName; }
        set { prodName = value; }
    }

    [XmlElementAttribute()]
    public bool discontValue
    {
        get { return discont; }
        set { discont = value; }
    }

    public string ffshow()
    {
        return "asdfasdf";
    }
}

    protected void Page_Load(object sender, EventArgs e)
    {
        product pd = new product();
        TextWriter tr = new StreamWriter(@"c:\serialprod.xml");
        TextReader treader = new StreamReader();

        XmlSerializer sr = new XmlSerializer(typeof(product));
        sr.Serialize(tr,pd);
        tr.Close();
    }

sr.Serialize只能用STREM XMLWRITER TEXTWRITER...

谢谢
--------------------编程问答-------------------- 顶 --------------------编程问答-------------------- <?xml version="1.0" encoding="utf-8"?>
<product xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <prodIdValue>123</prodIdValue>
  <prodNameValue>YELLOW</prodNameValue>
  <discontValue>false</discontValue>
</product>

着个是串行化后得到的XML..
如果以后还有新的类串行化后得到新的XML.如何假如到这个XML
<product xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
   <CLASS1>
      <prodIdValue>123</prodIdValue>
      <prodNameValue>YELLOW</prodNameValue>
      <discontValue>false</discontValue>
   </CLASS1>
   <CLASS2>
   ...............
   </CLASS2>
</product> --------------------编程问答-------------------- 顶…… --------------------编程问答-------------------- 不会啊 ……
我也是初学者
……
学习中…… --------------------编程问答-------------------- ...继续等待.... --------------------编程问答-------------------- ...没人看啊..这么是不是分太少了? --------------------编程问答-------------------- 将要存储这个xml串的数据库表的字段的类型设置成text类型 --------------------编程问答--------------------

补充：.NET技术 ,  C#