Data binding in WPF DataGrid control using SQL Server database

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using System.Data.SqlClient;
using System.Data;
using System.Configuration;

namespace WpfApplication1
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
            FillDataGrid();
        }

        private void FillDataGrid()
        {
            SqlConnection con;

            SqlDataAdapter sda;

            SqlCommand cmd;

            String CmdString = "SELECT TOP 100 * FROM Employees";
            string ConString = ConfigurationManager.ConnectionStrings["ConString"].ConnectionString;
            using (con = new SqlConnection(ConString))
            { 
                cmd=new SqlCommand(CmdString, con);
                sda=new SqlDataAdapter(cmd);
                DataSet ds=new DataSet();
                sda.Fill(ds, "Employees");
                grdEmployee.ItemsSource = ds.Tables[0].DefaultView;
            }          
        }

        private void dataGrid1_SelectedCellsChanged(object sender, SelectedCellsChangedEventArgs e)
        {
            
        }
    }
}