专家坐堂-[求助]合并不重复数据问题Foxtable(狐表) - 新一代数据库软件，完美融合Access、Foxpro、Excel、vb.net之优势，人人都能掌握的快速软件开发工具!

Dim Book As New XLS.Book("d:\\订单管理表.xls")
Dim Sheet As XLS.Sheet = Book.Sheets(0)
Tables("产品").StopRedraw()
Dim Cols1() As String = {"委托单位","名称","图号","台车定额"}
Dim Cols2() As String = {"客户简称","部件名称","图号","台车定额"}
For dr1 As Integer = 1 To Sheet.Rows.Count -1
    Dim dr2 As DataRow = DataTables("产品").Find("客户简称 = \'" & sheet(dr1,0).Text & "\' And 图号 = \'" & sheet(dr1,2).Text & "\'")
    If dr2 Is Nothing Then \'如果不存在同客户名称和图号的订单
        dr2 = DataTables("产品").AddNew()
    End If
    For i As Integer = 0 To Cols1.Length - 1
        dr2(Cols2(i)) = sheet(dr1,i).Text
    Next
Next
Tables("产品").ResumeRedraw()

上面的代码是从论坛搜索得来的。不过不够方便，前两行代码可不可以改成

Dim dlg As New OpenFileDialog
dlg.Filter= "Excel文件|*.xls

If dlg.ShowDialog = DialogResult.Ok Then

Dim Book As New XLS.Book(dlg.FileName)

Dim Sheet As XLS.Sheet = Book.Sheets(订单) 这里能直接指定表名吗。

这些是帮助之外的知识吧，要从那里才能学到呢，搜百度的又太深奥，大红袍老师，求你可怜一下我这个新人，指点一下学习路线，我从基础学起不怕。