private void LoadTG()
{
List <TacGia> t = tgbll.DSTacGia();
grvTacGia.DataSource = t;
grvTacGia.DataBind();
}
private void LoadDB()
{
List <LinhVuc> listlv = lvbll.DSLV();
LinhVuc.DataSource = listlv;
LinhVuc.DataTextField = "TenLinhVuc";
LinhVuc.DataValueField = "MaLinhVuc";
LinhVuc.DataBind();
List <TheLoai> listtl = tlbll.DSTL();
TheLoai.DataSource = listtl;
TheLoai.DataTextField = "TenTheLoai";
TheLoai.DataValueField = "MaTheLoai";
TheLoai.DataBind();
List <NgonNgu> listnn = ngvbll.DSNgonNgu();
NgonNgu.DataSource = listnn;
NgonNgu.DataTextField = "TenNgonNgu";
NgonNgu.DataValueField = "MaNgonNgu";
NgonNgu.DataBind();
List <TacGia> listtg = tgbll.DSTacGia();
tacgia.DataTextField = "HoTenTacGia";
tacgia.DataValueField = "MaTacGia";
tacgia.DataSource = listtg;
tacgia.DataBind();
List <NhaXuatBan> listnxb = nxbbll.DSNXB();
NhaXB.DataSource = listnxb;
NhaXB.DataTextField = "TenNXB";
NhaXB.DataValueField = "MaNXB";
NhaXB.DataBind();
List <Sach> mylist = sbll.DSSach();
grvSach.DataSource = mylist;
grvSach.DataBind();
}