CapDemo.GUI.User_Controls.UserManagement.txt_SearchCatalogue_TextChanged C# (CSharp) Method

        private void txt_SearchCatalogue_TextChanged(object sender, EventArgs e)
        {
            UserBL UserBL = new UserBL();
            List<DO.User> ListUser = UserBL.GetUser();
            ListtoDataTableConverter converter = new ListtoDataTableConverter();
            DataTable dt = converter.ToDataTable(ListUser);

            dgv_UserManagement.DataSource = dt;
            dt.DefaultView.RowFilter = string.Format("UserName LIKE '%{0}%' or Sequence LIKE '%{0}%'", txt_SearchCatalogue.Text);

            dgv_UserManagement.Columns["UserID"].Visible = false;
            dgv_UserManagement.Columns["PassWord"].Visible = false;
            dgv_UserManagement.Columns["Role"].Visible = false;
            dgv_UserManagement.Columns["Sequence"].HeaderText = "STT";
            dgv_UserManagement.Columns["UserName"].HeaderText = "Tên Tài khoản";
            dgv_UserManagement.Columns["Sequence"].AutoSizeMode = DataGridViewAutoSizeColumnMode.DisplayedCells;
        }