If e.DataCol.Name = "持证情况" Then
Dim ls1 As List(Of String) = DataTables("特殊工种").GetValues("工种", "姓名 = '" & e.DataRow("姓名") & "'")
Dim ls2 As List(Of String) = DataTables("管理人员").GetValues("工种", "姓名 = '" & e.DataRow("姓名") & "'")
Dim ls3 As List(Of String) = DataTables("管理人员").GetValues("工种", "姓名 = '" & e.DataRow("姓名") & "'")
For Each s As String In ls2
If ls1.Contains(s) = False Then
ls1.add(s)
End If
Next
For Each s As String In ls3
If ls1.Contains(s) = False Then
ls1.add(s)
End If
Next
e.DataRow("持证情况") = String.Join(vbcrlf, ls1.ToArray)
End If