C#
        public IActionResult Update(Guid id)
        {
            var Find = _db.Students.FirstOrDefault(x => x.Id == id);
            return View(Find);
        }
        [HttpPost]
        public IActionResult Update(Student st)
        {
            _db.Students.Update(st);
            _db.SaveChanges();
            return RedirectToAction("List");
        }
        public IActionResult Delete(Guid id)
        {
            var Find = _db.Students.FirstOrDefault(x => x.Id == id);
            _db.Students.Remove(Find);
            _db.SaveChanges();
            return RedirectToAction("List");
        }

C#
        public IActionResult Update(Guid id)
        {
            var Find = _db.Students.FirstOrDefault(x => x.Id == id);
            return View(Find);
        }
        [HttpPost]
        public IActionResult Update(Student st)
        {
            _db.Students.Update(st);
            _db.SaveChanges();
            return RedirectToAction("List");
        }
        public IActionResult Delete(Guid id)
        {
            var Find = _db.Students.FirstOrDefault(x => x.Id == id);
            _db.Students.Remove(Find);
            _db.SaveChanges();
            return RedirectToAction("List");
        }

C#
using OpenQA.Selenium.Chrome;
using OpenQA.Selenium.Support.UI;
using OpenQA.Selenium;

namespace Lab6_KiemThuNangCao
{
    internal class Program
    {
        static void Main(string[] args)
        {
            //Open Chrome
            IWebDriver driver = new ChromeDriver();

            //go to link
            driver.Navigate().GoToUrl("https://lms.poly.edu.vn");

            Thread.Sleep(1000);

            //login
            IWebElement menuButton = driver.FindElement(By.LinkText("Ha Noi"));
            menuButton.Click();

            // Go back to the home page and refresh the browser
            driver.Navigate().Back();
            driver.Navigate().Refresh();

            // Enter the login credentials and click the login button
            IWebElement usernameField = driver.FindElement(By.Id("thieuddph45736"));
            IWebElement passwordField = driver.FindElement(By.Id("Thieu1810"));
            IWebElement loginButton = driver.FindElement(By.Id("login-btn"));

            //quit
            driver.Quit();
        }
    }
}

C#
using OpenQA.Selenium.Chrome;
using OpenQA.Selenium.Support.UI;
using OpenQA.Selenium;

namespace Lab6_KiemThuNangCao
{
    internal class Program
    {
        static void Main(string[] args)
        {
            //Open Chrome
            IWebDriver driver = new ChromeDriver();

            //go to link
            driver.Navigate().GoToUrl("https://lms.poly.edu.vn");

            Thread.Sleep(1000);

            //login
            IWebElement menuButton = driver.FindElement(By.LinkText("Ha Noi"));
            menuButton.Click();

            // Go back to the home page and refresh the browser
            driver.Navigate().Back();
            driver.Navigate().Refresh();

            // Enter the login credentials and click the login button
            IWebElement usernameField = driver.FindElement(By.Id("thieuddph45736"));
            IWebElement passwordField = driver.FindElement(By.Id("Thieu1810"));
            IWebElement loginButton = driver.FindElement(By.Id("login-btn"));

            //quit
            driver.Quit();
        }
    }
}

        private void dataGridView1_CellClick(object sender, DataGridViewCellEventArgs e)
        {
            int d = e.RowIndex;
            textBox1.Text = dataGridView1.Rows[d].Cells[0].Value.ToString();
            textBox2.Text = dataGridView1.Rows[d].Cells[1].Value.ToString();
            textBox3.Text = dataGridView1.Rows[d].Cells[2].Value.ToString();
            dateTimePicker1.Value = Convert.ToDateTime(dataGridView1.Rows[d].Cells[4].Value.ToString());
            string gioiTinh = dataGridView1.Rows[d].Cells[3].Value.ToString();
            if (gioiTinh.Equals(1))
            {
                checkBox1.Checked = true;
                checkBox2.Checked = false;
            }
            else
            {
                checkBox1.Checked = false;
                checkBox2.Checked = true;
            }
            comboBox1.Text = dataGridView1.Rows[d].Cells[4].Value.ToString();
        }

        private void dataGridView1_CellClick(object sender, DataGridViewCellEventArgs e)
        {
            int d = e.RowIndex;
            textBox1.Text = dataGridView1.Rows[d].Cells[0].Value.ToString();
            textBox2.Text = dataGridView1.Rows[d].Cells[1].Value.ToString();
            textBox3.Text = dataGridView1.Rows[d].Cells[2].Value.ToString();
            dateTimePicker1.Value = Convert.ToDateTime(dataGridView1.Rows[d].Cells[4].Value.ToString());
            string gioiTinh = dataGridView1.Rows[d].Cells[3].Value.ToString();
            if (gioiTinh.Equals(1))
            {
                checkBox1.Checked = true;
                checkBox2.Checked = false;
            }
            else
            {
                checkBox1.Checked = false;
                checkBox2.Checked = true;
            }
            comboBox1.Text = dataGridView1.Rows[d].Cells[4].Value.ToString();
        }