- Foxtable(狐表) (http://foxtable.com/bbs/index.asp)
-- 专家坐堂 (http://foxtable.com/bbs/list.asp?boardid=2)
---- [求助]导入execl出错 (http://foxtable.com/bbs/dispbbs.asp?boardid=2&id=146154)
-- 发布时间：2020/2/17 20:54:00
-- [求助]导入execl出错
老师好！
以[报告号]为标识列导入execl数据，提示“调用的对象是空的”，如图，经测试，代码在加黑处报错。
测试的execl，是从foxtable数据导出的execl。
请老师帮助看看是哪里的问题？
谢谢！
此主题相关图片如下：159.jpg
代码如下：
If DataTables.Contains("复核表") = False Then
DataTables.Load("复核表")
End If
DataTables("复核表").Loadtop = ""
DataTables("复核表").Loadpage = 0
DataTables("复核表").LoadFilter = "复核人 = \'" & User.Name & "\'" \'sql数据库#改为\'
DataTables("复核表").Load
Dim dt As DataTable = DataTables("复核表")
Dim Result As DialogResult
Result = MessageBox.Show("确定要导入吗?", "提示", MessageBoxButtons.YesNo,
MessageBoxIcon.Question)
If Result = DialogResult.Yes Then
Dim dlg As New OpenFileDialog
dlg.Filter = "Excel文件|*.xls;*.xlsx"
dlg.MultiSelect = True \'允许选择多个文件
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(1)
wb.saved = True
Dim Rg As MSExcel.Range = Ws.UsedRange
Dim ary = rg.value
dt.ResumeRedraw()
dt.StopRedraw()
\'systemready = False
Dim nms As New Dictionary(Of String, Integer)
Dim dic As new Dictionary(Of Integer,DataRow)
Dim ls As new List(Of Integer)
For c As Integer = 1 To Rg.Columns.count
If dt.DataCols.Contains(ary(1,c).replace(" ", "")) Then
nms.Add(ary(1,c).replace(" ", ""), c)
End If
Next
Dim flag As Boolean = True
For n As Integer = 2 To Rg.Rows.count
Dim bgh As String = ary(n,nms("报告号"))
If bgh = "" Then Continue For
Dim dr As DataRow = dt.Find("报告号 = \'" & bgh & "\'")
If dr IsNot Nothing Then
Result = MessageBox.Show("有重复报告号,是否覆盖导入?"& vbcrlf &"是---覆盖导入"& vbcrlf &"否---新增导入", "提示", MessageBoxButtons.YesNo, MessageBoxIcon.Question)
If Result = DialogResult.Yes Then
flag = True
Else
flag = False
End If
Exit For
End If
Next
For n As Integer = 2 To Rg.Rows.count
Dim bgh As String = ary(n,nms("报告号"))
If bgh = "" Then Continue For
Dim dr As DataRow = dt.Find("报告号 = \'" & bgh & "\'")
If dr Is Nothing Then
dic.Add(n,Nothing)
ElseIf flag = True
dic.Add(n,dr)
End If
Next
For Each l As Integer In dic.Keys
Dim ndr As DataRow
If dic(l) Is Nothing Then
ndr = dt.AddNew
Else
ndr = dic(l)
End If
For Each m As String In nms.keys
If dt.DataCols(m).IsBoolean Then
If ary(l,nms(m))= "" OrElse ary(l,nms(m))= "False" OrElse ary(l,nms(m))= 0 Then
ndr (m) = False
Else
ndr (m) = True
End If
Else If dt.DataCols(m).Expression > "" Then
\'表达式列
Else If dt.DataCols(m).IsNumeric Then
ndr (m) = val(ary(l,nms(m)))
Else If dt.DataCols(m).IsDate Then
Dim d As Date
If Date.TryParse(ary(l,nms(m)), d)
ndr (m) = d
End If
Else
ndr (m) = ary(l,nms(m))
End If
Next
Next
dt.ResumeRedraw()
Dim n1,n2 As Integer
For Each l As Integer In dic.Keys
Dim ndr As DataRow
If dic(l) Is Nothing Then
\'ndr = dt.AddNew
n1+= 1
Else
ndr = dic(l)
n2+= 1
End If
Next
msgbox("新增" & n1 & " " & "更新旧数据" & n2)
app.quit
\'systemready = True
catch ex As exception
msgbox(ex.message)
app.quit
End try
End If
End If
-- 发布时间：2020/2/17 21:02:00
--
看不出什。再调试定位到某一句代码，然后看这时是哪列哪个单元格的值