public static void ThemHS(HocSinh hs)
{
var db = new ConnectionsDBContext();
db.HocSinhDbSet.Add(hs);
db.SaveChanges();
}
public static void ThemLH(LopHoc lh)
{
try {
var db = new ConnectionsDBContext();
db.LopHocDbSet.Add(lh);
db.SaveChanges();
}
catch (Exception ex) { }
}
public static void XoaHS(HocSinh hs)
{
var db = new ConnectionsDBContext();
var obj = db.HocSinhDbSet.Where(e => e.MaLH == hs.MaHS).FirstOrDefault();
if (obj != null)
{
db.HocSinhDbSet.Remove(obj);
}
db.SaveChanges();
}
public static void XoaLH(LopHoc lh)
{
var db = new ConnectionsDBContext();
var obj = db.LopHocDbSet.Where(e => e.MaLH == lh.MaLH).FirstOrDefault();
if (obj != null)
{
db.LopHocDbSet.Remove(obj);
}
db.SaveChanges();
}