private void TambahJadwalPraktikan(object sender, EventArgs e)
        {
            var service = new IadmClient( );
            var jadwal  = new List <jadwalPraktikan>( );
            var values  = gridView1.GetSelectedRows( );
            var periode = service.viewPeriode( ).FirstOrDefault(
                x =>
                service.ServerTime() >= x.awalSemester &&
                service.ServerTime() <= x.akhirSemester);
            var data = new jadwal_umum( )
            {
                id_periode = periode.id_periode
            };

            var listjadwal = new List <jadwalPraktikan>( );

            for (var i = 0; i < values.Count( ); i++)
            {
                var shift  = gridView1.GetRowCellValue(values[i], gridView1.Columns[1]).ToString( );
                var hari   = gridView1.GetRowCellValue(values[i], gridView1.Columns[0]).ToString( );
                var matkul = gridView1.GetRowCellValue(values[i], gridView1.Columns[3]).ToString( );
                var id     = service.ViewJadwalUmum(data).FirstOrDefault(x =>
                                                                         (x.fk_jadwalUmum_Shift.id_shift == shift && x.hari == hari) &&
                                                                         x.fk_jadwalUmum_matakuliah.mata_kuliah == matkul);


                var jadwalpraktikan = new jadwalPraktikan( )
                {
                    nrp            = simpleLabelItem1.Text,
                    id_jadwal_umum = new jadwal_umum( )
                    {
                        id_jadwal_umum = id.id_jadwal_umum
                    }
                };
                listjadwal.Add(jadwalpraktikan);
            }
            try { service.AddJadwalPraktikan(listjadwal.ToArray( )); } catch (Exception) { XtraMessageBox.Show("Tidak ada jadwal"); }
            Close( );
        }