主题：不重复导入

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("配载订单").ResumeRedraw()
        Tables("配载订单").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"}
       
        For n As Integer = 2 To ws.UsedRange.Rows.Count -1
            Dim r As  Row = Tables("配载订单").AddNew()
            For  m As  Integer = 0 To nms.Length - 1
                If Tables("配载订单").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
            Next
        Next
        Tables("配载订单").ResumeRedraw()
       
    catch ex As exception
        msgbox(ex.message)
        app.quit
    End try
End If
e.Form.Controls("提示").Text = "正在导入,请稍后..."
Application.DoEvents()
e.Form.Controls("提示").Text = "已经导入完成."
 e.Form.TimerInterval = 5000
  e.Form.TimerEnabled = True

表中没有唯一标识的数据 怎样快速取得不重复值

你问过啊

http://www.foxtable.com/bbs/dispbbs.asp?boardid=2&id=76681&authorid=0&page=0&star=2