主题：[求助]EXCEL导入去重

大概如此，希望你能理解：

Dim Book As New XLS.Book("D:\Documents\管理项目2\资料.xls")
Dim Sheet As XLS.Sheet = Book.Sheets(0)
Tables("期初").StopRedraw()
Dim nms() As String = {"类别","品名","规格","型号","材质","单位"}
For n As Integer = 1 To Sheet.Rows.Count - 1
    Dim Filter As String
    For m As Integer = 0 To nms.Length - 1
        If m > 0 Then
            Filter = Filter & " And "
        End If
        Filter = Filter & nms(m) & " = '" & sheet(n,m).Value & "'"
    Next
    If DataTables("资料").Find(Filter) Is Nothing Then
        Dim r As Row = Tables("资料").AddNew()
        For m As Integer = 0 To nms.Length - 1
            r(nms(m)) = Sheet(n,m).Value
        Next
    End If
Next
Tables("资料").ResumeRedraw()