不使用LINQ

Question

獲得兩個列表之間的區別，我有兩個名單如下：

var SeparatedEmployees = (from s in DataContext.HRM_EMP_TRMN.AsEnumerable() 
            where s.TRMN_FINL_STUS == "SA" && ((Convert.ToDateTime(s.TRMN_EFCT_DATE)).Year).ToString() == Year && ((Convert.ToDateTime(s.TRMN_EFCT_DATE)).Month).ToString() == HRMD_COMMON.ReturnMonthName(Month) 
            join e in DataContext.VW_HRM_EMPLOYEE on s.EMP_CODE equals e.EMP_CODE 
            where e.ACTIVE_STATUS == "A" 
            select new HRM_EMP_FINL_STMT_MSTModel 
            { 
             EMP_CODE = s.EMP_CODE, 
             EMP_NAME = e.EMP_NAME, 
             DIVI_CODE = e.DIVI_CODE, 
             DIVI_NAME = e.DIVI_NAME, 
             EMP_DESIG_CODE = e.EMP_DESIG_CODE, 
             EMP_DESIG_NAME = e.EMP_DESIG_NAME, 
             JOINING_DATE = HRMD_COMMON.ReturnOnlyDate(Convert.ToDateTime(e.JOINING_DATE)), 
             TRMN_TYPE = HRMD_COMMON.ReturnTerminationType(s.TRMN_TYPE), 
             TRMN_EFCT_DATE = HRMD_COMMON.ReturnOnlyDate(Convert.ToDateTime(s.TRMN_EFCT_DATE)), 
             LAST_SAL_PROS_MON = HRMD_COMMON.ReturnMonthName(s.LAST_SAL_PROS_MON), 
             FINL_STMT_REM = s.TRMN_REM 

            }).ToList(); 

     var ConfirmedEmployees = (from c in DataContext.HRM_EMP_FINL_STMT_MST.AsEnumerable() 
            where ((Convert.ToDateTime(c.FINL_STMT_DATE)).Year).ToString() == Year && ((Convert.ToDateTime(c.FINL_STMT_DATE)).Month).ToString() == HRMD_COMMON.ReturnMonthName(Month) 
            join e in DataContext.VW_HRM_EMPLOYEE on c.EMP_CODE equals e.EMP_CODE 
            join s in DataContext.HRM_EMP_TRMN on c.EMP_CODE equals s.EMP_CODE 
            select new HRM_EMP_FINL_STMT_MSTModel 
            { 
             EMP_CODE = s.EMP_CODE, 
             EMP_NAME = e.EMP_NAME, 
             DIVI_CODE = e.DIVI_CODE, 
             DIVI_NAME = e.DIVI_NAME, 
             EMP_DESIG_CODE = e.EMP_DESIG_CODE, 
             EMP_DESIG_NAME = e.EMP_DESIG_NAME, 
             JOINING_DATE = HRMD_COMMON.ReturnOnlyDate(Convert.ToDateTime(e.JOINING_DATE)), 
             TRMN_TYPE = HRMD_COMMON.ReturnTerminationType(s.TRMN_TYPE), 
             TRMN_EFCT_DATE = HRMD_COMMON.ReturnOnlyDate(Convert.ToDateTime(s.TRMN_EFCT_DATE)), 
             LAST_SAL_PROS_MON = HRMD_COMMON.ReturnMonthName(s.LAST_SAL_PROS_MON), 
             FINL_STMT_REM = s.TRMN_REM 
            }).ToList(); 

Tyring刪除從第一列表中的項目，這也是第二個列表。

var FinalSeparatedEmployees = (from item in SeparatedEmployees 
             where !ConfirmedEmployees.Contains(item) 
             select item).ToList(); 

試過這一個了：

FinalSeparatedEmployees = SeparatedEmployees.Except(ConfirmedEmployees).ToList<HRM_EMP_FINL_STMT_MSTModel>(); 

但沒有得到準確的結果。我錯過了什麼？謝謝。

Answer 1

它更好地使用EMP_CODE，因爲您的對象不具有可比性。

var ids = ConfirmedEmployees.Select(x => x.EMP_CODE).ToList(); 
var FinalSeparatedEmployees = (from item in SeparatedEmployees 
            where !ids.Contains(item.EMP_CODE) 
            select item).ToList();