主题：[求助]Excel 报表

要求也是能够导出钩选的记录行

下面的哪里出问题：

Dim filter As String = Tables("基本信息表").filter
Dim idx As String = "-1,"
For Each r As Row In Tables("基本信息表").GetCheckedRows
    idx &= r("_Identify") & ","
Next
filter = iif(Filter > "", "(" & Filter & ") and [_Identify] in (" & idx.trim(",") & ")", "[_Identify] in (" & idx.trim(",") & ")")
Dim dlg As New SaveFileDialog '定义一个新的SaveFileDialog
dlg.Filter= "Access文件|*.mdb" '设置筛选器
If dlg.ShowDialog = DialogResult.Ok Then '如果用户单击了确定按钮
    If FileSys.FileExists(dlg.FileName) Then
        FileSys.DeleteFile(dlg.FileName, 2, 2)
    End If
    Dim ex As New Exporter
    ex.SourceTableName = "基本信息表" '指定导出表
    ex.Filter = filter
    ex.filepath = dlg.FileName  '指定目标文件
    ex.Filter = Filter
    ex.Export() '开始导出
End If