从DB灌值到DataTable时，字段值为NULL时报错相关信息；

  1        #region 查询工资信息
  2         /// <summary>
  3         /// 查询工资信息
  4         /// </summary>
  5         /// <param name="model"></param>
  6         /// <param name="pageIndex"></param>
  7         /// <param name="pageCount"></param>
  8         /// <param name="ord"></param>
  9         /// <param name="TotalCount"></param>
 10         /// <returns></returns>
 11         public static DataTable GetSalaryInfoByEmployee(SalaryInfoModel model, string ReportType, string DeptID, int pageIndex, int pageCount, string ord, string endmonth, ref int TotalCount)
 12         {
 13             #region 查询语句
 14             StringBuilder searchSql = new StringBuilder();
 15             searchSql.AppendLine(" SELECT                                                ");
 16             searchSql.AppendLine("      A.ID,A.ReprotNo,A.CompanyCD,A.DeptName,A.EmployeeID,A.EmployeeName,A.Remarks,");                
 17             searchSql.AppendLine("isnull(A.BFGJJ,0.00)    BFGJJ,");
 18             searchSql.AppendLine("isnull(A.BFGZ,0.00)    BFGZ,   ");
 19             searchSql.AppendLine("isnull(A.BLGZ,0.00)    BLGZ,");
 20             searchSql.AppendLine("isnull(A.CTF,0.00)    CTF,   ");
 21             searchSql.AppendLine("isnull(A.DTF,0.00)    DTF,");
 22             searchSql.AppendLine("isnull(A.FTF,0.00)    FTF,  "); 
 23             searchSql.AppendLine("isnull(A.GHF,0.00)    GHF,");
 24             searchSql.AppendLine("isnull(A.GJJ,0.00)    GJJ,");
 25             searchSql.AppendLine("isnull(A.GTS,0.00)    GTS,");
 26             searchSql.AppendLine("isnull(A.GWF,0.00)    GWF,");
 27             searchSql.AppendLine("isnull(A.JBGZ,0.00)    JBGZ,");
 28             searchSql.AppendLine("isnull(A.JiangJ,0.00)    JiangJ,");
 29             searchSql.AppendLine("isnull(A.JZZYBF,0.00)    JZZYBF,");
 30             searchSql.AppendLine("isnull(A.KCBJ,0.00)    KCBJ,  "); 
 31             searchSql.AppendLine("isnull(A.MTF,0.00)    MTF, ");  
 32             searchSql.AppendLine("isnull(A.QT,0.00)    QT,  "); 
 33             searchSql.AppendLine("isnull(A.QTE,0.00)    QTE, ");  
 34             searchSql.AppendLine("isnull(A.QTY,0.00)    QTY,   ");
 35             searchSql.AppendLine("isnull(A.SBJ,0.00)    SBJ,   ");
 36             searchSql.AppendLine("isnull(A.Total,0.00)    Total,   "); 
 37               searchSql.AppendLine("isnull(A.TotalOne,0.00)    TotalOne, ");  
 38             searchSql.AppendLine("isnull(A.TotalTwo,0.00)    TotalTwo, ");
 39             searchSql.AppendLine("isnull(A.YBJ,0.00)    YBJ,   ");
 40             searchSql.AppendLine("isnull(A.YLJ,0.00)    YLJ  ");                                                                
 41             searchSql.AppendLine("     ,c.DeptName  as  DeptWprkName                                              ");
 42             searchSql.AppendLine("     ,Substring(b.ReportMonth, 1, 4) + ‘年‘              ");
 43             searchSql.AppendLine("         + Substring(b.ReportMonth, 5, 2) + ‘月‘         ");
 44             searchSql.AppendLine("         AS ReportMonth                                  ");
 45             searchSql.AppendLine("     FROM officedba.SalaryInfo a                                         ");
 46             searchSql.AppendLine("     left join    officedba.SalaryReport b    on    a.ReprotNo=b.ReprotNo                                      ");
 47             searchSql.AppendLine("     left join    officedba.DeptInfo c    on    b.DeptID=c.ID                                      ");
 48             searchSql.AppendLine("     left join    officedba.EmployeeInfo d    on    a.employeeID=d.ID                                       ");
 49             searchSql.AppendLine("     WHERE              ");
 50             searchSql.AppendLine("      a.CompanyCD = @CompanyCD                            ");
 51             searchSql.AppendLine("     AND b.ReportType = @ReportType                            ");
 52 
 53             #endregion
 54 
 55             //定义查询的命令
 56             SqlCommand comm = new SqlCommand();
 57             //公司代码
 58             comm.Parameters.Add(SqlHelper.GetParameterFromString("@CompanyCD", model.CompanyCD));
 59             comm.Parameters.Add(SqlHelper.GetParameterFromString("@ReportType", ReportType));
 60             UserInfoUtil userInfo = (UserInfoUtil)SessionUtil.Session["UserInfo"];
 61             if (userInfo.EmployeeID != 10389 && userInfo.EmployeeID != 10403 && userInfo.EmployeeID != 8526 && userInfo.EmployeeID != 1873)
 62             {
 63                 searchSql.AppendLine("     AND b.DeptId in (select emp.DepID from officedba.EmpAndDep emp where emp.EmpID=@EmployeeID)         ");
 64                 comm.Parameters.Add(SqlHelper.GetParameterFromString("@EmployeeID", userInfo.EmployeeID.ToString()));
 65             }
 66 
 67             #region 页面输入条件
 68             //员工姓名
 69             if (!string.IsNullOrEmpty(model.EmployeeName))
 70             {
 71                 searchSql.AppendLine("    AND A.EmployeeName LIKE ‘%‘ + @EmployeeName + ‘%‘ ");
 72                 comm.Parameters.Add(SqlHelper.GetParameterFromString("@EmployeeName", model.EmployeeName));
 73             }
 74 
 75             if (!string.IsNullOrEmpty(model.DeptName))
 76             {
 77                 searchSql.AppendLine("    AND B.DeptID in (" + model.DeptName + ") ");
 78                 //comm.Parameters.Add(SqlHelper.GetParameterFromString("@DeptName", model.DeptName));
 79             }
 80             //所属月份
 81             if (!string.IsNullOrEmpty(model.Month))
 82             {
 83                 if (endmonth != "")
 84                 {
 85                     searchSql.AppendLine("    AND convert(int,b.ReportMonth) between @ReportMonth and @endReportMonth ");
 86                     comm.Parameters.Add(SqlHelper.GetParameterFromString("@endReportMonth", endmonth));
 87                 }
 88                 else
 89                 {
 90                     searchSql.AppendLine("    AND convert(int,b.ReportMonth) > @ReportMonth  ");
 91                 }
 92                 comm.Parameters.Add(SqlHelper.GetParameterFromString("@ReportMonth", model.Month));
 93 
 94             }
 95 
 96             if (!string.IsNullOrEmpty(DeptID))
 97             {
 98                 searchSql.AppendLine("    AND (CHARINDEX(‘,‘ +LTRIM(d.DeptID),(@DeptID))>0 or  CHARINDEX(RTRIM(d.DeptID)+‘,‘,(@DeptID))>0 or CHARINDEX(LTRIM(d.DeptID),(@DeptID))>0) ");
 99                 comm.Parameters.Add(SqlHelper.GetParameterFromString("@DeptID", DeptID));
100             }
101             #endregion

 1 SELECT                                               
 2 A.ID,A.ReprotNo,A.CompanyCD,A.DeptName,A.EmployeeID,A.EmployeeName,A.Remarks,   
 3 isnull(A.BFGJJ,0.00)    BFGJJ,
 4 isnull(A.BFGZ,0.00)    BFGZ,   
 5 isnull(A.BLGZ,0.00)    BLGZ,
 6 isnull(A.CTF,0.00)    CTF,   
 7 isnull(A.DTF,0.00)    DTF,
 8 isnull(A.FTF,0.00)    FTF,  
 9 isnull(A.GHF,0.00)    GHF,
10 isnull(A.GJJ,0.00)    GJJ,
11 isnull(A.GTS,0.00)    GTS,
12 isnull(A.GWF,0.00)    GWF,
13 isnull(A.JBGZ,0.00)    JBGZ,
14 isnull(A.JiangJ,0.00)    JiangJ,
15 isnull(A.JZZYBF,0.00)    JZZYBF,
16 isnull(A.KCBJ,0.00)    KCBJ,   
17 isnull(A.MTF,0.00)    MTF, 
18 isnull(A.QT,0.00)    QT,   
19 isnull(A.QTE,0.00)    QTE, 
20 isnull(A.QTY,0.00)    QTY,  
21 isnull(A.SBJ,0.00)    SBJ,   
22 isnull(A.Total,0.00)    Total,   
23 isnull(A.TotalOne,0.00)    TotalOne, 
24 isnull(A.TotalTwo,0.00)    TotalTwo, 
25 isnull(A.YBJ,0.00)    YBJ,  
26 isnull(A.YLJ,0.00)    YLJ                            
27     ,c.DeptName  as  DeptWprkName                    
28     ,Substring(b.ReportMonth, 1, 4) + ‘年‘           
29     + Substring(b.ReportMonth, 5, 2) + ‘月‘        
30     AS ReportMonth                                 
31 FROM officedba.SalaryInfo a                          
32 left join    officedba.SalaryReport b    on    a.ReprotNo=b.ReprotNo                  
33 left join    officedba.DeptInfo c    on    b.DeptID=c.ID