รบกวนสอบถามเรื่องการค้นหาในฟอร์ม เพื่อสะดวกในการใช้งาน

public partial class Form1 : Form
    {
        List<TestEntity> TestEntityList = new List<TestEntity>();
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            TestEntity TestEntity = new TestEntity();
            TestEntity.Id = 1;
            TestEntity.Name = "สบู่";
            TestEntity.Status = false;
            TestEntityList.Add(TestEntity);

            TestEntity = new TestEntity();
            TestEntity.Id = 2;
            TestEntity.Name = "แปลงสีฟัน";
            TestEntity.Status = false;
            TestEntityList.Add(TestEntity);


            TestEntity = new TestEntity();
            TestEntity.Id = 3;
            TestEntity.Name = "ขนมน้ำตาล";
            TestEntity.Status = false;
            TestEntityList.Add(TestEntity);

            dataGridView1.DataSource = TestEntityList;
            dataGridView1.Visible = false;
        }

        private void textBox1_TextChanged(object sender, EventArgs e)
        {
            
            dataGridView1.Location = new Point(textBox1.Location.X, (textBox1.Location.Y+22));

            List<TestEntity> TestEntityListSer = TestEntityList.FindAll(x => x.Name.Contains(textBox1.Text));

            if (TestEntityListSer.Count > 0)
            {
                dataGridView1.DataSource = null;
                dataGridView1.DataSource = TestEntityListSer;
                dataGridView1.Visible = true;
            }
            else
            {
                dataGridView1.Visible = false;
            }
        }

        private void textBox1_Leave(object sender, EventArgs e)
        {
            dataGridView1.Visible = false;
        }
    }
    public class TestEntity
    {
        public int Id { get; set; }
        public string Name { get; set; }
        public bool Status { get; set; }
    }

placement: 'bottom'
placement: 'top'
placement: 'left'
placement: 'right'
placement autoResize: true /*ในทุกฯขนาดของหน้าจอ*/

            jQuery(document).ready(function ($) {
                //BootStrap PopOver
                $('.ClassXXX').popover({ placement: 'bottom', content: '<img src="./xFolder/xxx.jpg" />', html: 'true' });
            });