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----  导入数据问题  (http://www.foxtable.com/bbs/dispbbs.asp?boardid=2&id=145362)
--  作者：季朝龙
--  发布时间：2020/1/17 10:32:00
--  导入数据问题
狐狸爸爸，我设置了以下代码，当把find改成SQLfind就无法更新相同编号的数据了，想要实现后台数据比对之后再导入数据，代码该怎么修改呀。

Dim dlg As New OpenFileDialog \'定义一个新的OpenFileDialog
dlg.Filter= "(*.*)|*.*" \'设置筛选器
If dlg.ShowDialog = DialogResult.Ok Then \'如果用户单击了确定按钮
    Dim Book As New XLS.Book(dlg.FileName)
    Dim Sheet As XLS.Sheet = Book.Sheets("齐套信息")
    Tables("齐套信息").StopRedraw()
    Dim nms() As String = {"工单号","工单状态","产品料号","产品品名","产品规格","生产数量","异常_描述","异常_采购部回复","PN号","IQC在验量","预计齐套日期","备料料号","料件品名","料件规格","缺料","库存量","应发量","已发量","未发量","发货未收量"}
    For n As Integer = 1 To Sheet.Rows.Count -1
        Dim bh As String = sheet(n,0).Text
Dim bh1 As String = sheet(n,11).Text
        Dim dr As DataRow = DataTables("齐套信息").Find("工单号 = \'" & bh & "\' and 备料料号 = \'" & bh1 & "\'")
        If dr Is Nothing Then \'如果不存在同编号的订单
            dr =  DataTables("齐套信息").AddNew()
        End If
        For m As Integer = 0 To nms.Length - 1
            dr(nms(m)) = Sheet(n,m).Value
        Next
    Next
    Tables("齐套信息").ResumeRedraw()
End If
--  作者：有点蓝
--  发布时间：2020/1/17 10:42:00
--  
For n As Integer = 1 To Sheet.Rows.Count -1
        Dim bh As String = sheet(n,0).Text
Dim bh1 As String = sheet(n,11).Text
        Dim dr As DataRow = DataTables("齐套信息").SqlFind("工单号 = \'" & bh & "\' and 备料料号 = \'" & bh1 & "\'")
        If dr Is Nothing Then \'如果不存在同编号的订单
            dr =  DataTables("齐套信息").AddNew()
        End If
        For m As Integer = 0 To nms.Length - 1
            dr(nms(m)) = Sheet(n,m).Value
        Next
        dr.save
    Next