public void xoa()
{
Console.Clear();
Console.WriteLine("XOA THONG TIN LOAI DO");
List <Loaido> list = spDLL.LayDSLoaido();
int ma;
Console.Write("Nhap ma loai can xoa:");
ma = int.Parse(Console.ReadLine());
int i = 0;
for (i = 0; i < list.Count; ++i)
{
if (list[i].maloai == ma)
{
break;
}
}
if (i < list.Count)
{
Loaido b = new Loaido(list[i]);
spDLL.XoaLoaido(b);
}
}
//Chèn một bản ghi học sinh vào tệp
public void Insert(Loaido lh)
{
int Malh = Maloai + 1;
StreamWriter fwrite = File.AppendText(txtfile);
fwrite.WriteLine();
fwrite.Write(Maloai + "#" + lh.tenloai + "#" + lh.dacdiem);
fwrite.Close();
}
//Chèn một bản ghi học sinh vào tệp
public void Themdo(Loaido sp)
{
string maloai = DateTime.Now.ToString("ss");
StreamWriter fwrite = File.AppendText(txtfile);
fwrite.WriteLine();
fwrite.Write(maloai + "#" + sp.tenloai + "#" + sp.dacdiem);
fwrite.Close();
}
public void Nhap()
{
Console.Clear();
Console.WriteLine("NHAP THONG TIN LOAI DO");
Loaido sp = new Loaido();
Console.Write("Nhap ten loai:"); sp.tenloai = Console.ReadLine();
Console.Write("Nhap dac diem :"); sp.dacdiem = Console.ReadLine();
spDLL.ThemLoaido(sp);
}
public void ThemLoaido(Loaido lh)
{
if (lh.tenloai != "" && lh.dacdiem != "")
{
lhBLL.Themdo(lh);
}
else
{
throw new Exception("Du lieu sai");
}
}
public List <Loaido> Timloaido(Loaido lh)
{
List <Loaido> list = lhBLL.LayDSLoaido();
List <Loaido> kq = new List <Loaido>();
//Voi gai tri ngam dinh ban dau
if (lh.tenloai == null && lh.dacdiem == null && lh.maloai == 0)
{
kq = list;
}
//Tim theo ho ten
if (lh.tenloai != null)
{
for (int i = 0; i < list.Count; ++i)
{
if (list[i].tenloai.IndexOf(lh.tenloai) >= 0)
{
kq.Add(new Loaido(list[i]));
}
}
}
// Tim theo đaciem
else if (lh.dacdiem != null)
{
for (int i = 0; i < list.Count; ++i)
{
if (list[i].dacdiem.IndexOf(lh.dacdiem) >= 0)
{
kq.Add(new Loaido(list[i]));
}
}
}
//Tim theo ma
else if (lh.maloai != 0)
{
for (int i = 0; i < list.Count; ++i)
{
if (list[i].maloai == lh.maloai)
{
kq.Add(new Loaido(list[i]));
}
}
}
//Cac truong hop khac cac ban tu lam
else
{
kq = null;
}
return(kq);
}
public void Sua()
{
Console.Clear();
Console.WriteLine("SUA THONG TIN LOAI DO ");
List <Loaido> list = spDLL.LayDSLoaido();
int ma;
Console.Write("Nhap ma loai can sua:");
ma = int.Parse(Console.ReadLine());
int i = 0;
for (i = 0; i < list.Count; ++i)
{
if (list[i].maloai == ma)
{
break;
}
}
if (i < list.Count)
{
Loaido sp = new Loaido(list[i]);
Console.Write("Nhap ten loai moi:");
string ten = Console.ReadLine();
if (ten != "")
{
sp.tenloai = ten;
}
Console.Write("Dac diem:");
string dacdiem = Console.ReadLine();
if (dacdiem != "")
{
sp.dacdiem = dacdiem;
}
spDLL.SuaLoaido(sp);
}
else
{
Console.WriteLine("Khong ton tai ma san pham nay");
}
}
public void XoaLoaido(Loaido malh)
{
int i;
List <Loaido> list = lhBLL.LayDSLoaido();
for (i = 0; i < list.Count; ++i)
{
if (list[i].maloai == malh.maloai)
{
break;
}
}
if (i < list.Count)
{
list.RemoveAt(i);
lhBLL.Update(list);
}
else
{
throw new Exception("Khong ton tai ma nay");
}
}
