之前用了这个过滤，现在数据量大了，不好处理。
Dim dt As DataTable
Dim cmd As New SQLCommand
cmd.C
cmd.CommandText = "SEL ECT bmID,papernum From {Person_info} where county = '" & Vars("V_county") & "' "
dt=cmd.Execu teReader
Dim ids As String
For Each dr As DataRow In dt.DataRows
ids = ids & ",'" & dr("papernum") & "'"
Next
ids= ids.Trim(",")
mg.Filter = "身份证号码 not In (" & ids & ")"
搜索了一个新的办法，但是不知道过滤条件怎么加了？
Dim dlg As New OpenFileDialog
dlg.Filter = "Excel文件|*.xls;*.xlsx"
If dlg.ShowDialog =DialogResult.OK Then
Dim t As Table = Tables("Person_info")
t.StopRedraw()
Dim Book As New XLS.Book(dlg.FileName)
Dim Sheet As XLS.Sheet = Book.Sheets(0)
Dim newcount As Integer = 0
Dim oldcount As Integer = 0
Dim nms1() As String = {"姓名","性别","学历","身份证号码","所在乡镇","单位","手机号码"} '导入的数据表
Dim nms2() As String = {"name","sex","xueli","papernum","town","bmunit","phone"}
For n As Integer = 1 To Sheet.Rows.Count -1
Dim r As Row = Tables("Person_info").AddNew()
For i As Integer = 0 To sheet.Cols.Count -1
Dim idx As Integer = array.indexof(nms1, sheet(0,i).Text)
If idx >= 0 Then
r(nms2(idx)) = sheet(n, i).Text
End If
Next
Next
t.ResumeRedraw()
End If
如果在导入Excel数据表的时候，要校验身份证号码，如果存在，这条数据就不导入，应该怎么改写呢？
望指点，谢谢
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Post By：2017/6/23 15:50:00 [只看该作者]
