public static bool SuaTheLoai(TheLoaiDTO tl)
{
if (TheLoaiDAO.GetTheLoaiByMa(tl.MaTheLoai) != null)
{
TheLoaiDAO.Update(tl);
return(true);
}
else
{
return(false);
}
}
public static bool ThemTheLoai(TheLoaiDTO tl)
{
if (TheLoaiDAO.GetTheLoaiByName(tl.TenTheLoai) == null)
{
TheLoaiDAO.Insert(tl);
return(true);
}
else
{
return(false);
}
}
public static bool XoaTheLoai(TheLoaiDTO tl)
{
if (TheLoaiDAO.GetTheLoaiByName(tl.TenTheLoai) != null)
{
TheLoaiDAO.Delete(tl);
return(true);
}
else
{
return(false);
}
}
