.NET SQLServer2005 XML字段

//这是添加 
private void button1_Click(object sender, EventArgs e)
        {
            string s = "Persist Security Info=False;Integrated Security=SSPI;database=IIntegration;server=(local)";
            using (SqlConnection conn = new SqlConnection(s))
            {
                using (SqlCommand cmd1 = new SqlCommand("INSERT testxml VALUES(@ID, @XmlData)", conn))
                {
                    conn.Open();
                    cmd1.Parameters.Add("@ID", SqlDbType.Int, 4);
                    cmd1.Parameters[0].Value = 2;
                    cmd1.Parameters.Add("@XmlData", SqlDbType.Xml);
                    cmd1.Parameters[1].Value = GetXmlData();
                    cmd1.ExecuteNonQuery();
                 
                }
            }
        }
     &nbs