how to insert data using binding navigator(help me)

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Data.SqlClient;

namespace datanavi
{
    public partial class Form1 : Form
    {
        SqlConnection con;
        SqlCommand cmd;

        // my table name is dn
        // It has two fields name,age
        // two textbox i m having in form 

        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            // TODO: This line of code loads data into the 'textileDataSet.dn' table. You can move, or remove it, as needed.
            this.dnTableAdapter.Fill(this.textileDataSet.dn);

        }

        private void bindingNavigatorAddNewItem_Click(object sender, EventArgs e)
        {
            //this code is not working while inserting
           con.Open();
            cmd = new SqlCommand("insert into table dn values '" + textBox1.Text + "','" + textBox2.Text + "'", con);
            cmd.ExecuteNonQuery();
            con.Close();
        }
    }
}

//i used bindingsource and bindingnavigator control to interact with Database table