public Linq2SqlPerformanceTests()
        {
            using (var db = new DataClasses1DataContext())
            {
                // delete any records from previous run
                var deptQuery = (from dept in db.Departments select dept).ToList();
                foreach (var item in deptQuery)
                {
                    db.Departments.DeleteOnSubmit(item);
                }
                db.SubmitChanges();

                var personQuery = (from pers in db.Persons select pers).ToList();
                foreach (var item in personQuery)
                {
                    db.Persons.DeleteOnSubmit(item);
                }
                db.SubmitChanges();

                Department myDepartment = new Department()
                {
                    name = "Operations"
                };

                db.Departments.InsertOnSubmit(myDepartment);
                db.SubmitChanges();
            }
        }
 partial void DeleteDepartment(Department instance);
 partial void UpdateDepartment(Department instance);
 partial void InsertDepartment(Department instance);