主题：[求助]关于日期筛选取值

1、先筛选重复，如

Dim idx As String = "-1,"
Dim idx_temp As String = ""
Dim pdr As DataRow = Nothing
Dim count As Integer = 0
Dim cs As String = "日期"
For Each dr As DataRow In DataTables("表A").Select("", cs & " desc")
   
    Dim flag As Boolean = False
    If pdr IsNot Nothing Then
        If format(pdr("日期"), "yyyyMM") <> format(dr("日期"), "yyyyMM") Then
            flag = True
        End If
    End If
    If flag OrElse pdr Is Nothing Then
        If count > 1 Then
            idx &= idx_temp
        End If
        count = 1
        idx_temp = ""
    Else
        count += 1
        idx_temp &= dr("_Identify") & ","
    End If
   
    pdr = dr
Next

If count > 1 Then
    idx &= idx_temp
End If

Tables("表A").filter = "_Identify not in (" & idx.trim(",") & ")"  '显示唯一值