主题：复杂编号

Select e.DataCol.Name
    Case "进库日期","fa piao号码"
        If e.DataRow.IsNull("进库日期") OrElse e.DataRow.IsNull("fa piao号码") Then
            e.DataRow("托盘编号") = Nothing
        Else
            Dim d As Date = e.DataRow("进库日期")
            Dim y As Integer = d.Year
            Dim m As Integer = d.Month
            Dim bh As String = "TS-" & Format(d,"yyMMdd") & "-"
            Dim fd As Date = New Date(y,m,1) '获得该月的第一天
            Dim ld As Date = fd.AddMonths(1)
             If e.DataRow("托盘编号").StartsWith(bh) = False '如果托盘编号前缀不符
                Dim max As String
                Dim idx As Integer
                Dim flt As String
                flt = "进库日期 >= #" & fd & "# And 进库日期 < #" & ld & "# And substring(托盘编号,16," & e.DataRow("fa piao号码").length & ") = '" & e.DataRow("fa piao号码") & "' And [_Identify] <> " & e.DataRow("_Identify")
                max = e.DataTable.Compute("Max(托盘编号)",flt) '取得该月的相同fa piao号码的最大托盘编号
                If max > "" Then '如果存在最大托盘编号
                    idx = CInt(max.Substring(bh.length,4)) + 1 '获得最大托盘编号的后四位顺序号,并加1
                Else
                    idx = 1 '否则顺序号等于1
                End If
                e.DataRow("托盘编号") = bh & Format(idx,"0000") & "-" & e.Datarow("fa piao号码")
            End If
        End If
End Select

哦，想复杂了。

 

Select e.DataCol.Name
    Case "进库日期","fa piao号码"
        If e.DataRow.IsNull("进库日期") OrElse e.DataRow.IsNull("fa piao号码") Then
            e.DataRow("托盘编号") = Nothing
        Else
            Dim d As Date = e.DataRow("进库日期")
            Dim y As Integer = d.Year
            Dim m As Integer = d.Month
            Dim bh As String = "TS-" & Format(d,"yyMMdd") & "-"
            Dim fd As Date = New Date(y,m,1) '获得该月的第一天
            Dim ld As Date = fd.AddMonths(1)
            Dim max As String
            Dim idx As Integer
            Dim flt As String
            flt = "进库日期 >= #" & fd & "# And 进库日期 < #" & ld & "# And fa piao号码 = '" & e.DataRow("fa piao号码") & "' And [_Identify] <> " & e.DataRow("_Identify")
            max = e.DataTable.Compute("Max(托盘编号)",flt) '取得该月的相同fa piao号码的最大托盘编号
            msgbox(max)
            If max > "" Then '如果存在最大托盘编号
                idx = CInt(max.Substring(bh.length,4)) + 1 '获得最大托盘编号的后四位顺序号,并加1
            Else
                idx = 1 '否则顺序号等于1
            End If
            e.DataRow("托盘编号") = bh & Format(idx,"0000") & "-" & e.DataRow("fa piao号码")
           
        End If
End Select

 把这句代码去掉 msgbox(max)