.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();

                 
                }
            }
        }

        private SqlXml GetXmlData()
        {
            DataTable dt = new DataTable("B_Quality");

            dt.Columns.Add("Q_Name", typeof(string));

            dt.Columns.Add("Q_Symbol", typeof(string));

            dt.Columns.Add("Q_Value", typeof(string));

            DataRow dr = dt.NewRow();

            dr["Q_Name"] = "水分";
            dr["Q_Symbol"] = ">";
            dr["Q_Value"] = "15";

            dt.Rows.Add(dr);

            MemoryStream ms = new MemoryStream();

            dt.WriteXml(ms); //, XmlWriteMode.WriteSchema
          
            return new SqlXml(ms);

 

//
        }

 

//查看

 string s = "Persist Security Info=False;Integrated Security=SSPI;database=IIntegration;server=(local)";
            using (SqlConnection conn = new SqlConnection(s))
            {
                using (SqlCommand cmd1 = new SqlCommand("SELECT * FROM testxml", conn))
                {
                    conn.Open();

                    SqlDataReader sdr = cmd1.ExecuteReader();

                    //DataTable dt = sdr.GetSchemaTable();

                    DataTable dt = new DataTable();

                    if (sdr.Read())
                    {
                        SqlXml sql = sdr.GetSqlXml(1);

                        XmlReader xr = sql.CreateReader();

                        dt.ReadXml(xr);
                       
                    }

                    this.dataGridView1.AutoGenerateColumns = true;

                    this.bindingSource1.DataSource = dt;

                   
                }
            }

 

很简单，参照下面的微软代码

 using (SqlConnection conn = new SqlConnection(s))

            {

                using (SqlCommand cmd1 = new SqlCommand("INSERT xmltab(xmlcol) VALUES(@x)", conn))

                using (SqlCommand cmd2 = new SqlCommand(" insert_xml", conn))

                {

                    string str = "<somedoc/>";

 

                    conn.Open();

 

                    // server-side conversion

                    cmd1.Parameters.Add("@x", SqlDbType.NVarChar);

                    cmd1.Parameters[0].Value = str;

                    cmd1.ExecuteNonQuery();

 

                    // client-side conversion works too

                    cmd2.CommandType = CommandType.StoredProcedure;

                    cmd2.Parameters.Add("@x", SqlDbType.Xml);

                    cmd2.Parameters[0].Value = s;

                    cmd2.ExecuteNonQuery();

                }

            }