public void xoa(object obj, sosanh ss)
{
for (int i = ds.Count - 1; i >= 0; i--)
{
if (ss(obj, this[i]) == 0)
{
this.ds.RemoveAt(i);
}
}
}
public sinhvien tim(object obj, sosanh ss)
{
sinhvien svresult = null;
foreach (sinhvien sinhvien in ds)
{
if (ss(obj, sinhvien) == 0)
{
svresult = sinhvien;
break;
}
}
return(svresult);
}
public SinhVien tim(object obj, sosanh ss)
{
SinhVien res = null;
foreach (SinhVien sv in ds)
{
if (ss(obj, sv) == 0)
{
res = sv;
break;
}
}
return(res);
}
public bool sua(sinhvien sv, object obj, sosanh ss)
{
bool kq = false;
for (int i = 0; i < ds.Count - 1; i++)
{
if (ss(obj, this[i]) == 0)
{
this[i] = sv;
kq = true;
break;
}
}
return(kq);
}
public bool sua(SinhVien svedit, object obj, sosanh ss)
{
int i, count;
bool kq = false;
count = this.ds.Count - 1;
for (i = 0; i < count; i++)
{
if (ss(obj, this[i]) == 0)
{
this[i] = svedit;
kq = true;
break;
}
}
return(kq);
}
