Question

我对这个想法有疑问。我需要的是能够在obj中添加值，即：（obj.issueValue）。返回的列是一堆价格，我需要知道如何将它们全部添加到一起。只是为了让您知道，我在VB.NET中使用iTextSharp进行此操作。这是代码，因为没有代码可以帮助理解

SELECT
       QEE.[eventid], 
       QEE.[eventdate], 
       QEE.[employee], 
       QEE.[communication], 
       QEE.[othercommunication], 
       QEE.[issue], 
       QEE.[issuedescription], 
       QEE.[issuecomments], 
       QEE.[resolution], 
       QEE.[resolutioncomments], 
       QEE.[salesordernumber], 
       QEE.[customerpo], 
       QEE.[sostatus], 
       QEE.[customer], 
       QEE.[customername], 
       QEE.[salespersonname], 
       QEE.[isresolved], 
       QEE.[issuevalue], 
       QEE.[dateandtimeadded], 
       Datediff(day, SOR.reqshipdate, QEE.[eventdate]) AS Elapsed, 
       SOR.reqshipdate 
FROM
       [QualityTracking].[dbo].[tblqualityevententry] QEE 
INNER JOIN
       sysprocompanyc.dbo.sormaster SOR 
ON
       QEE.salesordernumber = SOR.salesorder COLLATE  latin1_general_ci_as 
WHERE  eventdate BETWEEN @from AND @to 
ORDER  BY
       eventdate ASC, 
       customername ASC, 
       salesordernumber ASC;

obj.issueValue = IIf(dr("IssueValue") Is DBNull.Value, 0.0, Val(dr("IssueValue")))

sumTable.AddCell(New iTextSharp.text.Phrase(obj.issue.ToString(), FontFactory.GetFont("Arial", 15, iTextSharp.text.Font.NORMAL)))
sumTable.AddCell(New iTextSharp.text.Phrase(obj.qty, FontFactory.GetFont("Arial", 15, iTextSharp.text.Font.NORMAL)))
sumTable.AddCell(New iTextSharp.text.Phrase(obj.issueDescription.ToString(), FontFactory.GetFont("Arial", 15, iTextSharp.text.Font.NORMAL)))
sumTable.AddCell(New iTextSharp.text.Phrase(obj.grandTotal, FontFactory.GetFont("Arial", 20, iTextSharp.text.Font.NORMAL)))

obj.grandTotal是目标。我只想要显示整个列的总和，所以我需要的是将它们全部加在一起并吐出总数的函数。

Answer 1

也许您可以尝试下面的某些类型转换功能......

Debug.WriteLine(CStr(CDec("5") + CDec("5")))

写出10

如何在对象vb.net和itextsharp中一起添加值

1 个答案: