protected void btnDelete_Click(object sender, EventArgs ee)
        {
            LINQTOSQLDataContext lsql = new LINQTOSQLDataContext();
            var employee = lsql.Employees.SingleOrDefault(e => e.ID == 11);

            lsql.Employees.DeleteOnSubmit(employee);
            lsql.SubmitChanges();
            LoadData();
        }
        private void LoadData()
        {
            LINQTOSQLDataContext lsql = new LINQTOSQLDataContext();

            GridView1.DataSource = from emp in lsql.Employees
                                   select emp;

            GridView1.DataBind();
        }
 protected void btnInsert_Click(object sender, EventArgs e)
 {
     using (LINQTOSQLDataContext lsql = new LINQTOSQLDataContext())
     {
         Employee emp = new Employee
         {
             FirstName    = "Fancy",
             LastName     = "Fateh",
             Gender       = "Female",
             DepartmentId = 3,
             Salary       = 1000000
         };
         lsql.Employees.InsertOnSubmit(emp);
         lsql.SubmitChanges();
     }
     LoadData();
 }