/// <summary>
/// Xoa khoa theo ma khoa
/// </summary>
/// <param name="maLop"></param>
/// <returns>true, false</returns>
public bool Delete(string maLop)
{
if (string.IsNullOrEmpty(maLop))
{
return(false);
}
LopDAO context = new LopDAO();
Lop lp = new Lop();
try
{
lp = context.GetById(maLop);
if (lp != null)
{
SinhVienBLL svContext = new SinhVienBLL();
List <SinhVien> lstSV = svContext.GetByMaLop(maLop);
if (lstSV.Count == 0)
{
context.Delete(maLop);
return(true);
}
}
return(false);
}
catch (Exception ex)
{
Console.WriteLine(ex);
return(false);
}
}
/// <summary>
/// Lay 1 record dua vao ma lop
/// </summary>
/// <param name="maLop"></param>
/// <returns>Lop</returns>
public Lop GetById(string maLop)
{
if (maLop == "" || maLop == null)
{
return(null);
}
LopDAO context = new LopDAO();
try
{
Lop lp = context.GetById(maLop);
return(lp);
}
catch (Exception ex)
{
Console.WriteLine(ex);
return(null);
}
}