主题：test运算符后缺少操作数

导入数据时报错 test运算符后缺少操作数 用的是外部数据源 数据源名称是test 数据源连接正常 高速合并没问题 导入的代码是:

Dim dlg As new OpenFileDialog
If dlg.ShowDialog = DialogResult.OK Then
    Dim App As New MSExcel.Application
    try
        Dim Wb As MSExcel.WorkBook = App.WorkBooks.Open(dlg.FileName)
        Dim Ws As MSExcel.WorkSheet = Wb.WorkSheets("计划表")
        Dim Rg As MSExcel.Range = Ws.UsedRange
        Dim ary = rg.value
       
        Tables("订单").ResumeRedraw()
        Tables("订单").StopRedraw()
        Dim nms() As  String = {"项目","下单日期","MK号","DO号","城市","客户","送货地址","物料代码","数量","体积","重量","承运商","司机","车牌","车数","车型","出车日期","车辆属性","备注","特殊要求","跟车搬运"}
        Dim count As Integer = 0
        Dim ls As new List(of Integer)
        Dim dic As new Dictionary (Of DataRow, Integer)
       
        For n As Integer = 2 To ws.UsedRange.Rows.Count
           
            Dim filter As String = "1=1"
            For m As Integer = 0 To nms.length-1
                Dim vl As object = ary(n,m+1)
                Dim dc As String = nms(m)
                Dim c As Col = Tables("订单").Cols(dc)
                If vl = Nothing Then
                    filter &= " and " & dc & " is null"
                Else
                    If c.IsNumeric Then
                       
                        filter &= " and " & dc & " >= " & vl - 0.0001 & " and " & dc & " <= " & vl + 0.0001
                       
                    ElseIf c.IsBoolean Then
                        If vl = True Then
                            filter &= " And " & dc & " = true"
                        Else
                            filter &= " and " & dc & " = false"
                        End If
                    ElseIf c.IsDate Then
                       
                        Dim d As Date
                        If Date.TryParse(vl, d)
                            filter &= " and " & dc & " = #" & d.Date & "#"
                        End If
                       
                    Else
                       
                        filter &= " and " & dc & " = '" & vl & "'"
                       
                    End If
                End If
            Next
            Dim dr As DataRow = DataTables("订单").find(filter)
            If dr Is Nothing Then
                output.show(filter)
                ls.Add(n)
                count += 1
            Else
                dic.add(dr, n)
            End If
        Next
        For Each n As Integer In ls
           
            Dim r As  Row = Tables("订单").AddNew()
            For  m As  Integer = 0 To nms.Length - 1
                If ary(n,m+1) = Nothing Then
                    r(nms(m)) = Nothing
                Else
                    If Tables("订单").Cols(nms(m)).IsDate Then
                        Dim d As Date
                        If Date.TryParse(ary(n,m+1), d)
                            r(nms(m)) = d
                        End If
                    Else
                        r(nms(m)) = ary(n,m+1)
                    End If
                End If
               
            Next
           
        Next
        Tables("订单").ResumeRedraw()
        msgbox("共有 "& count &" 条数据导入" )
       
    catch ex As exception
        msgbox(ex.message)
    finally
        app.quit
    End try
End If

Tables("订单").save

试试

 

Dim vl As object = ary(n,m+1)

 

改成

 

Dim vl As object = ary(n,m+1)

vl = cstr(vl).replace("'", "''")

 

-----------不行，就用下面的方法

 

加入代码

 

msgbox(n & "   " & filter)

Dim dr As DataRow = DataTables("订单").find(filter)

 

运行看运行到哪一条出错

改了之后报未将对象引用设置到对象的实例 不改加msgbox 就是读取出一条条要导入的数据

看读取到哪一条报错啊。不会做，就做个例子发上来，代码没什么问题，你数据的问题。