private void LoadData() { lstAccount = account.GetListAccount(); dgvaccount.DataSource = lstAccount; lstNhanVien = nhanvien.GetlistNV(); cmbHoten.DisplayMember = "Name"; cmbHoten.DataSource = lstNhanVien; dgvaccount.Columns[0].Visible = false; dgvaccount.Columns[5].Visible = false; dgvaccount.Columns[6].Visible = false; dgvaccount.Columns[7].Visible = false; dgvaccount.Columns[8].Visible = false; dgvaccount.Columns[9].Visible = false; dgvaccount.Columns[10].Visible = false; dgvaccount.Columns[11].Visible = false; dgvaccount.Columns[12].Visible = false; pnl.Enabled = false; btnthem.Enabled = true; btnxoa.Enabled = true; btnhuy.Enabled = false; btnluu.Enabled = false; btnresetpass.Enabled = true; btnthoat.Enabled = true; }