How to EDIT the GridView in Ado.NetEntityDataModel in WindowsFormsApllication

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

namespace EFExample
{

    public partial class Form1 : Form
    {
        SampleDBEntities2 model = null;
        public Form1()
        {
            InitializeComponent();
            model = new SampleDBEntities2();
            studentDataGridView.DataSource = model.Students.OrderBy(p => p.StudentId);

        }

        private void Form1_Load(object sender, EventArgs e)
        {

        }

        private void studentBindingNavigatorSaveItem_Click(object sender, EventArgs e)
        {
            model.SaveChanges();

        }
    }
}
Please help me how to Edit The GridView.
TableName :Student
Column:StudentId