public void SuaTinhTrangDG(string tenTinhTrangDG, string maTinhTrangDG)
 {
     try
     {
         TinhTrangDocGiaDAO TinhTrangDG = new TinhTrangDocGiaDAO();
         TinhTrangDG.SuaTinhTrangDG(tenTinhTrangDG, maTinhTrangDG);
     }
     catch (Exception)
     {
         throw;
     }
 }
 public void XoaTinhTrangDG(string maTinhTrangDG)
 {
     try
     {
         TinhTrangDocGiaDAO TinhTrangDG = new TinhTrangDocGiaDAO();
         TinhTrangDG.XoaTinhTrangDG(maTinhTrangDG);
     }
     catch (Exception)
     {
         throw;
     }
 }
 public DataTable LayDanhSachTinhTrangDocGia()
 {
     try
     {
         TinhTrangDocGiaDAO dsNhanVien = new TinhTrangDocGiaDAO();
         DataTable          table      = dsNhanVien.LayDanhSachTinhTrangDocGia();
         return(table);
     }
     catch (SqlException ex)
     {
         throw ex;
     }
 }
 public void ThemTinhTrangDG(string tenTinhTrangDG)
 {
     try
     {
         TinhTrangDocGiaDAO TinhTrangDG   = new TinhTrangDocGiaDAO();
         DataTable          dsTinhTrangDG = TinhTrangDG.LayDanhSachTinhTrangDocGia();
         string             maTinhTrangDG = "TTDG" + (int.Parse(dsTinhTrangDG.Rows[dsTinhTrangDG.Rows.Count - 1][0].ToString().Substring(4, 2)) + 1).ToString("00");
         TinhTrangDG.ThemTinhTrangDG(tenTinhTrangDG, maTinhTrangDG);
     }
     catch (Exception)
     {
         throw;
     }
 }