private void HienThiTenNV()
{
DataTable dt = nv.ListToDataTable(nv.SelectAll());
comboBoxTenNhanVien.DataSource = dt;
comboBoxTenNhanVien.DisplayMember = "TenNV";
comboBoxTenNhanVien.ValueMember = "MaNV";
}
private void HienThiTenHH()
{
DataTable dt = hh.ListToDataTable(hh.SelectAll());
comboBoxTenHang.DataSource = dt;
comboBoxTenHang.DisplayMember = "TenHH";
comboBoxTenHang.ValueMember = "MaHH";
}
private void HienThiTenKH()
{
DataTable dt = kh.ListToDataTable(kh.SelectAll());
comboBoxTenKhachHang.DataSource = dt;
comboBoxTenKhachHang.DisplayMember = "TenKH";
comboBoxTenKhachHang.ValueMember = "MaKH";
}
//Hien thi,them loai
private void HienThiTenLoai()
{
DataTable dt = loai.ListToDataTable(loai.SelectAll());
comboBoxTenLoai.DataSource = dt;
comboBoxTenLoai.DisplayMember = "TenLoai";
comboBoxTenLoai.ValueMember = "MaLoai";
}