主题：[求助]EXCEL导入去重

用如下编码导入excel表数据不能去除重复的行

 

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()   '注意以下数组中列名称的顺序,必须和Excel表中的列顺序一致
Dim nms() As String = {"类别","品名","规格","型号","材质","单位"}
            '注意下面的循环变量从1开始,而不是从0开始,因为Excel表的第一行是标题
For n As Integer = 1 To Sheet.Rows.Count -1
    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
Next
Tables("资料").ResumeRedraw()

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()

可能是类别有空行,所以出错

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点击浏览该文件:项目.zip

Dim Book As New XLS.Book(ProjectPath & "资料.xls")
Dim Sheet As XLS.Sheet = Book.Sheets(0)
Tables("资料").StopRedraw()
Dim Filter As String
Dim nms() As String = {"类别","品名","规格","单位"}
For n As Integer = 1 To Sheet.Rows.Count - 1
    Filter = ""
    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()

还是未能去重,除了去除重复之外,最好能手动选择要导入的EXCEL文件

没看出来哪行是重复的

问题解决了,非常感谢,原来我把中间有空行的列删除就没问题了,看来对于空行还需要修改代码