Select e.DataCol.Name
    Case "录入日期","录入人"
        If e.DataRow.IsNull("录入日期") OrElse e.DataRow.IsNull("录入人") Then
            e.DataRow("派单id") = Nothing
            \'msgbox(18)
        Else
            If QQClient.Ready = False Then
                PopMessage("QQClient未启动,无法生成编号!","提示",PopIconEnum.Infomation,5)
            Else
                Dim bh As String = e.DataRow("录入人") & "-" &  Format(e.DataRow("录入日期"),"yyyyMM")
                Dim rt As String =  QQClient.SendWait(":g" & bh & "g:")
                Dim id As Integer
                If rt > "" Then
                    If  Integer.TryParse(rt,id)  Then
                        e.DataRow("派单id") = bh & "-" & Format(id,"0000")
                        msgbox("新增了派单")
                    Else
                        PopMessage("服务器返回错误信息:" & rt,"提示",PopIconEnum.Infomation,5)
                    End If
                Else
                    PopMessage("服务器无响应,无法生成编号!","提示",PopIconEnum.Infomation,5)
                End If
            End If
        End If
End Select

4位录入人,4位年,2位月。。。

但录入人有可能是3个字，或2个字。

怎么改呢？

    If bh.Length = 16 Then
        bh = bh.SubString(12)

改成

    bh = bh.SubString(qz.length)

Dim msg As String = e.Message
If msg.StartsWith(":g") AndAlso msg.EndsWith("g:") Then
    msg = msg.SubString(2, msg.Length - 4)
    If flbhs.ContainsKey(msg) Then \'如果存在这个月的编号
        flbhs(msg) = flbhs(msg) + 1 \'将该月最大编号加1
    Else
        flbhs.Add(msg,1) \'如果这个月的首次编号,则编号等于1
    End If
    e.ReturnValue = flbhs(msg)
End If

这里还需要改吗？

For Each dr As DataRow In dt.DataRows
    Dim qz As String = dr("录入人") & "-"  & dr("年") & Format(dr("月"),"00") \'编号前缀,4位录入人,4位年,2位月
    Dim bh As String =  dr("派单id")
    Dim id As Integer   
    If bh.Length >= qz.length Then
        bh = bh.SubString(qz.length)
        If Integer.TryParse(bh,id) Then
            flbhs.Add(qz, id)
        End If
    End If
Next

 Dim qz As String = dr("录入人") & "-"  & dr("年") & Format(dr("月"),"00") \'编号前缀,4位录入人,4位年,2位月

这个只有年月。

Dim bh As String = e.DataRow("录入人") & "-" &  Format(e.DataRow("录入日期"),"yyyyMMddHHmmss")

 我想把录入日期格式改为：yyyyMMddHHmmss   呢？

感谢您的回复！

Forms("QQServer").Open()
Dim dt As DataTable
Dim cmd As New SQLCommand
cmd.ConnectionName = "server"
cmd.CommandText = "Select 录入人,录入日期, Max(派单id) as 派单id From {派工} Group By 录入人,录入日期"
dt = cmd.ExecuteReader
flbhs.Clear()
For Each dr As DataRow In dt.DataRows
    Dim qz As String = dr("录入人") & "-"  & Format(dr("录入日期"),"yyyyMMddHHmmss")
    Dim bh As String =  dr("派单id")
    Dim id As Integer   
    If bh.Length >= qz.length Then
        bh = bh.SubString(qz.length)
        If Integer.TryParse(bh,id) Then
            flbhs.Add(qz, id)
        End If
    End If
Next

Dim msg As String = e.Message
If msg.StartsWith(":g") AndAlso msg.EndsWith("g:") Then
    msg = msg.SubString(2, msg.Length - 4)
    If flbhs.ContainsKey(msg) Then \'如果存在这个月的编号
        flbhs(msg) = flbhs(msg) + 1 \'将该月最大编号加1
    Else
        flbhs.Add(msg,1) \'如果这个月的首次编号,则编号等于1
    End If
    e.ReturnValue = flbhs(msg)
End If

老师：那这段代码还需要改吗?