无法将“System.Data.DataRow”类型的对象强制转换为“System.IConvertible”类型

本文介绍了无法将“System.Data.DataRow”类型的对象强制转换为“System.IConvertible”类型的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述 29岁程序员，3月因学历无情被辞！我收到此错误。 这是代码： Dim conn As SqlConnection = 新 SqlConnection（ "数据源= E5D603;初始值Catalog = CashReceipt; Integrated Security = True" ）I'm getting this error. Here is the code:Dim conn As SqlConnection = New SqlConnection("Data Source=E5D603;Initial Catalog=CashReceipt;Integrated Security=True") Dim RDataSet As 新 数据集Dim RDataSet As New DataSet Dim RfileAdapter As SqlDataAdapter = 新 SqlDataAdapter（ " select * from tbl_AccDetails&qu ot; ，conn）Dim RfileAdapter As SqlDataAdapter = New SqlDataAdapter("select * from tbl_AccDetails", conn) RfileAdapter.FillSchema（RDataSet，SchemaType.Source， " tbl_AccDetails" ）RfileAdapter.FillSchema(RDataSet, SchemaType.Source, "tbl_AccDetails") RfileAdapter.Fill（RDataSet）RfileAdapter.Fill(RDataSet) Dim RTbl As DataTable = RDataSet.Tables（0）Dim RTbl As DataTable = RDataSet.Tables(0) while oRead.EndOfStream = FalseWhile oRead.EndOfStream = False Dim oneLine As 字符串 = oRead.ReadLine（） Dim TblRow = RTbl.NewRowDim oneLine As String = oRead.ReadLine()Dim TblRow = RTbl.NewRow TblRow（1）= Convert.ToString（LTrim（oneLine.Substring（30,30）） ））TblRow(1) = Convert.ToString(LTrim(oneLine.Substring(30, 30))) TblRow（2）= Convert.ToString（LTrim（oneLine.Subst） ring（0,10）））TblRow(2) = Convert.ToString(LTrim(oneLine.Substring(0, 10))) Dim LBal As String = LTrim（oneLine.Substring（16,12））Dim LBal As String = LTrim(oneLine.Substring(16, 12)) Dim myLBal =（LBal.Substring（0,9））Dim myLBal = (LBal.Substring(0, 9)) Dim mySign =（LBal.Substring（9,1））Dim mySign = (LBal.Substring(9, 1)) TblRow（3）= （CDec（mySign + myLBal））TblRow(3) = (CDec(mySign + myLBal)) Dim LWChg As 字符串 = LTrim（oneLine.Substring（65,10））Dim LWChg As String = LTrim(oneLine.Substring(65, 10)) Dim myLWChg =（LWChg.Substring（0,8））Dim myLWChg = (LWChg.Substring(0, 8)) Dim LWSign =（LWChg.Substring（8,1））Dim LWSign = (LWChg.Substring(8, 1)) 'TblRow（4）= （ CDec （LWSign + myLWChg））'TblRow(4) =  (CDec(LWSign + myLWChg)) TblRow（5）= Convert.ToInt32（LTrim（oneLine.Substring（120,3）））TblRow(5) = Convert.ToInt32(LTrim(oneLine.Substring(120, 3))) TblRow （6）= Convert.ToString（LTrim（oneLine.Substring（124,29）））TblRow(6) = Convert.ToString(LTrim(oneLine.Substring(124, 29))) TblRow（7）= Convert.ToString（LTrim（oneLine.Substring（155,28）） ））TblRow(7) = Convert.ToString(LTrim(oneLine.Substring(155, 28))) RTbl.Rows.Add（TblRow）' ------------------这是错误行RTbl.Rows.Add(TblRow)  '------------------ This is the line of error 我检查了表，它有正确的数据类型。我还检查了每个变量的内容，这也没问题。如果我省略这个RTbl.Rows.Add那么它就可以了。 有什么想法吗？Any idea guys? 谢谢提前推荐答案 任何人都可以看看这个问题并指出我正确的方向。Can anyone please take a look at this problem and point me to correct directions.谢谢 这篇关于无法将“System.Data.DataRow”类型的对象强制转换为“System.IConvertible”类型的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！ 上岸，阿里云！