C# :column name or number of supplied values does not match table definition.

<?xml version="1.0" encoding="utf-8"?>
<Table>
	<Product>
		<Product_id>1</Product_id>
		<Product_name>Product 1</Product_name>
		<Product_price>1000</Product_price>
	</Product>
....

Column name or number of supplied values does not match table definition.

private void button3_Click(object sender, EventArgs e)
     {
         string connetionString = null;
         SqlConnection connection;
         SqlCommand command;
         SqlDataAdapter adpter = new SqlDataAdapter();
         DataSet ds = new DataSet();
         XmlReader xmlFile;
         string sql = null;

         int product_ID = 0;
         string Product_Name = null;
        string product_Price = null;

         connetionString = "Data Source=server name;Initial Catalog=database;User ID=user;Password=password";

         connection = new SqlConnection(connetionString);

         xmlFile = XmlReader.Create("Product.xml", new XmlReaderSettings());
         ds.ReadXml(xmlFile);
         int i = 0;
         connection.Open();
         for (i = 0; i <= ds.Tables[0].Rows.Count - 1; i++)
         {
             product_ID = Convert.ToInt32(ds.Tables[0].Rows[i].ItemArray[0]);
             Product_Name = ds.Tables[0].Rows[i].ItemArray[1].ToString();
             product_Price = ds.Tables[0].Rows[i].ItemArray[2].ToString();
                 //Convert.ToDouble(ds.Tables[0].Rows[i].ItemArray[2]);
             sql = "insert into Product values(" + product_ID + ",'" + Product_Name + "'," + product_Price + ")";
             command = new SqlCommand(sql, connection);
             adpter.InsertCommand = command;
             adpter.InsertCommand.ExecuteNonQuery();
         }
         connection.Close();
         MessageBox.Show("Done .. ");
     }
 }