主题：求助：如何用简单代码判断表的某两行完全相同？

如题所问！谢谢指导！

Dim dr1 As DataRow
Dim dr2 As DataRow
Dim same As Boolean = True
For Each dc As DataCol In dr1.DataTable.DataCols
    If dr1(dc.name) <> dr2(dc.name)
        same = False
        Exit for
    End If

Next
msgbox(same)

 

以上代码复制到命令窗口有错误！我主要的想法是：从表A大批量的数据中，找出完全重复的行，要把这些行删除，且要保留一行。麻烦老师再指点一下呢？

写代码

 

Dim idx As String = "-1,"
Dim idx_temp As String = ""
Dim pdr As DataRow = Nothing
Dim count As Integer = 0
Dim cs As String = "第一列,第二列"
For Each dr As DataRow In DataTables("表A").Select("", cs)
    Dim flag As Boolean = False
    If pdr IsNot Nothing Then
        For Each c As String In cs.split(",")
            If pdr(c) <> dr(c) Then
                flag = True
                Exit For
            End If
        Next
        If flag Then
            If count > 1 Then
                idx &= idx_temp
            End If
            count = 1
            idx_temp = ""
        Else
            count += 1
            idx_temp &= dr("_Identify") & ","
        End If
    Else
        count += 1
    End If
    pdr = dr
Next

If count > 1 Then
    idx &= idx_temp
End If

 

Tables("表A").Filter = "_Identify not In (" & idx.trim(",") & ")"

'DataTables("表A").DeleteFor("_Identify In (" & idx.trim(",") & ")")

灰常感谢！！！