public FormQuanLyTaiKhoan() { InitializeComponent(); this.dgvTaiKhoan.AutoGenerateColumns = false; this.cboVaiTro.SelectedIndex = 0; this._bindingTaiKhoan = new BindingSource(); this._bindingTaiKhoan.DataSource = ManageBase.CreateTableNguoiDung(); this.dgvTaiKhoan.DataSource = this._bindingTaiKhoan; }