private void btnXoa_Click(object sender, EventArgs e)
{
if (dataGridView2.SelectedRows.Count > 0 && nudSoLuong.Value > 0)
{
eChiTietHoaDon ct = dataGridView2.Rows[dataGridView2.CurrentRow.Index].DataBoundItem as eChiTietHoaDon;
int index = -1;
bool isDelete = false;
foreach (eChiTietHoaDon item in lstChiTiet)
{
index++;
if (item.maDia == ct.maDia)
{
if (item.soLuong - (int)nudSoLuong.Value < 1)
{
isDelete = true;
}
else
{
int soluong = lstChiTiet[index].soLuong;
lstChiTiet[index].soLuong -= (int)nudSoLuong.Value;
lstChiTiet[index].thanhTien = (lstChiTiet[index].thanhTien / soluong) * lstChiTiet[index].soLuong;
}
}
}
if (isDelete)
{
lstChiTiet.RemoveAt(dataGridView2.CurrentRow.Index);
}
eChiTietHoaDonBindingSource.DataSource = lstChiTiet;
eChiTietHoaDonBindingSource.ResetBindings(false);
dataGridView2.Refresh();
}
}
private void btnThem_Click(object sender, EventArgs e)
{
if (dgvDsDia.SelectedRows.Count > 0 && nudSoLuong.Value > 0)
{
eDia dia = dgvDsDia.Rows[dgvDsDia.CurrentRow.Index].DataBoundItem as eDia;
eChiTietHoaDon newItem = new eChiTietHoaDon();
newItem.maDia = dia.maDia;
newItem.soLuong = (int)nudSoLuong.Value;
newItem.thanhTien = dia.donGia;
newItem.tenDia = dia.tenDia;
int index = -1;
foreach (eChiTietHoaDon item in lstChiTiet)
{
index++;
if (item.maDia == newItem.maDia)
{
lstChiTiet[index].soLuong += (int)nudSoLuong.Value;
lstChiTiet[index].thanhTien = lstChiTiet[index].soLuong * dia.donGia;
eChiTietHoaDonBindingSource.DataSource = lstChiTiet;
eChiTietHoaDonBindingSource.ResetBindings(false);
dataGridView2.Refresh();
return;
}
}
lstChiTiet.Add(newItem);
eChiTietHoaDonBindingSource.DataSource = lstChiTiet;
eChiTietHoaDonBindingSource.ResetBindings(false);
dataGridView2.Refresh();
}
}
public bool suaChiTietHoaDon(eChiTietHoaDon cthd, int maCTHD)
{
eChiTietHoaDon cthd1 = new eChiTietHoaDon();
var q = db.ChiTietHoaDons.Where(a => a.maChiTietHoaDon == maCTHD).SingleOrDefault();
if (cthd1 != null)
{
cthd1.TrangThai = q.trangThai;
db.SubmitChanges();
return(true);
}
return(false);
}
public bool them_CTHD(eChiTietHoaDon cthd)
{
if (!DanhSachCTHD().Contains(cthd))
{
ChiTietHoaDon nv1 = new ChiTietHoaDon();
nv1.maHoaDon = cthd.MaHoaDon;
nv1.maChiTietHoaDon = cthd.MaChiTietHoaDon;
nv1.maThucDon = cthd.MaThucDon;
nv1.soLuong = cthd.SoLuong;
nv1.thanhTien = cthd.ThanhTien;
nv1.trangThai = cthd.TrangThai;
db.ChiTietHoaDons.InsertOnSubmit(nv1);
db.SubmitChanges();
return(true);
}
return(false);
}
