.net Load（）抛出错误：未定义的函数'；统计工作日和#x27；表达

我正在使用Access数据库并尝试加载DataTable对象，但收到了错误。我的查询在标准访问模块中调用一个名为“CountWeekDays”的公共函数，当通过访问本身运行时，会返回正确的结果。当通过.NET应用程序调用它时，为什么这不起作用

 SELECT tbl1.ProjectID, tbl1.EntryDate AS StartDate, tbl2.EntryDate AS EndDate, 
(SELECT (ChecklistDayMax - ChecklistDayMin + 1) AS DaysAlotted FROM milestone_def WHERE MilestoneDefID = [@milestoneID]) AS DaysAlotted, 
(SELECT ProjectPriority FROM project_master WHERE ProjectID = tbl1.ProjectID) AS Priority,    
 IIF(Priority = 1, (SELECT BonusDaysFH FROM milestone_def WHERE MilestoneDefID = [@milestoneID]), 
 IIF(Priority = 2, (SELECT BonusDaysFM FROM milestone_def WHERE MilestoneDefID = [@milestoneID]), 
 IIF(Priority = 3, (SELECT BonusDaysFL FROM milestone_def WHERE MilestoneDefID = [@milestoneID])))) AS BonusDaysAllotted, 
 CountWeekDays(tbl1.EntryDate, tbl2.EntryDate) AS DaysRequired
 FROM checklist_entries AS tbl1 
 INNER JOIN checklist_entries AS tbl2 ON tbl1.ProjectID = tbl2.ProjectID
 WHERE tbl1.ChecklistDay = (SELECT ChecklistDayMin FROM milestone_def WHERE MilestoneDefID = [@milestoneID])
 AND tbl2.ChecklistDay = (SELECT ChecklistDayMax FROM milestone_def WHERE MileStoneDefID = [@milestoneID]);

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只有在Access本身中运行查询时，才能在Access查询中使用用户定义的VBA函数。如果您将在.NET应用程序中运行查询，则查询必须只返回开始/结束日期，并且.NET代码必须计算它们之间的工作日数。

哪里定义了

CountWeekDays

在名为“modCountWeekDays”的访问模块中。@DStanley这是对的后续问题。他说再一次！哈哈，那真的很糟糕。我厌倦了访问。该死的客户。好吧，我要再做一遍。再次感谢Gord。