void SuaThongTinKhach(KhachThue khachDaSua)
{
int vitriTimThay = ds.IndexOf(khachDaSua);
if (vitriTimThay > 0)
{
ds[vitriTimThay] = khachDaSua;
}
}
void TaoCungDS()
{
KhachThue cd1 = new KhachThue(112, "KH01", 12, 1200, true);
KhachThue cd2 = new KhachThue(113, "KH02", 13, 1201, false);
KhachThue cd3 = new KhachThue(114, "KH03", 14, 1202, true);
KhachThue cd4 = new KhachThue(115, "KH04", 15, 1203, false);
objds.ThemKhachThue(cd1);
objds.ThemKhachThue(cd2);
objds.ThemKhachThue(cd3);
objds.ThemKhachThue(cd4);
}
public bool XoaKhachThue(KhachThue khach)
{
if (khach != null)
{
ds.Remove(khach);
return(true);
}
else
{
return(false);
}
}
public bool ThemKhachThue(KhachThue khach)
{
if (ds.Contains(khach))
{
return(false);
}
else
{
ds.Add(khach);
return(true);
}
}