private void FrmCapNhatBanDat_Load(object sender, EventArgs e) { DatBan_BUS = new DatBan_BUS(cm); DocKhachHang(); DocBanAn(); if (bandat != null) { cbbKhachHang.SelectedValue = bandat.MaKhachHang; cbbBanAn.SelectedValue = bandat.MaBan; if (bandat.TrangThai == "Chưa đến ăn") { cbbHienTrang.SelectedIndex = 1; trangThaiOld = 0; } else { cbbHienTrang.SelectedIndex = 0; trangThaiOld = 1; } calcEdit_ThoiGianDen.Text = bandat.ThoiGianDen; } }