public static void UpdateLoaiDocGia(int idLoaiDG, string tenLoaiDG)
{
LOAIDOCGIA loaiDG = db.LOAIDOCGIAs.Find(idLoaiDG);
loaiDG.TenLoaiDocGia = tenLoaiDG;
db.SaveChanges();
}
public static void DeleteLoaiDocGia(int idLoaiDG)
{
LOAIDOCGIA loaiDG = db.LOAIDOCGIAs.Find(idLoaiDG);
db.LOAIDOCGIAs.Remove(loaiDG);
db.SaveChanges();
}
public static void AddLoaiDocGia(string tenLoaiDG)
{
LOAIDOCGIA loaiDG = new LOAIDOCGIA();
loaiDG.TenLoaiDocGia = tenLoaiDG;
db.LOAIDOCGIAs.Add(loaiDG);
db.SaveChanges();
}