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

namespace WindowsApplication2
{

    public partial class Form1 : Form
    {
        SqlConnection con;
        SqlDataAdapter da;
        SqlCommandBuilder cmd;
        DataRow row;
        DataSet ds = new DataSet();
        BindingSource bsourse = new BindingSource();
        public Form1()
        {
            InitializeComponent();
        }

       

        private void Form1_Load(object sender, EventArgs e)
        {
            con = new SqlConnection("server=localhost;database=raja;integrated security=sspi");
            da = new SqlDataAdapter("select * from ex", con);
            cmd = new SqlCommandBuilder(da);
            da.Fill(ds, "ex");
            ds.Tables[0].Constraints.Add("pik", ds.Tables[0].Columns[0], true);

            bsourse.DataSource = ds.Tables["ex"];
            dataGridView1.DataSource = bsourse;
        }
    }
}