主题：自动编号

比如代码

Select e.DataCol.Name
    Case "订单编号"
        If e.DataRow.IsNull("订单编号") Then
            e.DataRow("生产编号") = Nothing
        Else
            Dim lb As String = e.DataRow("订单编号")

            lb = lb.split("-")(0).SubString(2)

            If e.DataRow("生产编号").StartsWith(lb) = False '如果单据编号前缀不符
                Dim max As String
                Dim idx As Integer
                max = e.DataTable.Compute("Max(生产编号)","订单编号 = '" & e.DataRow("订单编号") & "' And [_Identify] <> " & e.DataRow("_Identify")) '取得该类别的最大编号
                If max > "" Then '如果存在最大编号
                    idx = CInt(max.Substring(lb.length+1,3)) + 1 '获得最大编号的后三位顺序号,并加1
                Else
                    idx = 1 '否则顺序号等于1
                End If
                e.DataRow("生产编号") = lb & "-" & Format(idx,"000")
            End If
        End If
End Select

你希望生成怎样的编号？不同订单号的生产编号是重新计算还是一直累加？

试试这样

Select e.DataCol.Name
    Case "订单编号"
        If e.DataRow.IsNull("订单编号") Then
            e.DataRow("生产编号") = Nothing
        Else
            Dim lb As String = e.DataRow("订单编号")

            lb = lb.split("-")(0).SubString(2)

            If e.DataRow("生产编号").StartsWith(lb) = False '如果单据编号前缀不符
                Dim max As String
                Dim idx As Integer
                max = e.DataTable.Compute("Max(生产编号)","[_Identify] <> " & e.DataRow("_Identify")) '取得该类别的最大编号
                If max > "" Then '如果存在最大编号
                    idx = CInt(max.Substring(lb.length+1,3)) + 1 '获得最大编号的后三位顺序号,并加1
                Else
                    idx = 1 '否则顺序号等于1
                End If
                e.DataRow("生产编号") = lb & "-" & Format(idx,"000")
            End If
        End If
End Select

如果楼上不行，你要加一个辅佐列【顺序号】才行

Select e.DataCol.Name
    Case "订单编号"
        If e.DataRow.IsNull("订单编号") Then
            e.DataRow("生产编号") = Nothing
        Else
            Dim lb As String = e.DataRow("订单编号")

            lb = lb.split("-")(0).SubString(2)

            If e.DataRow("生产编号").StartsWith(lb) = False '如果单据编号前缀不符
                Dim max As String
                Dim idx As Integer
                max = e.DataTable.Compute("Max(顺序号)","[_Identify] <> " & e.DataRow("_Identify")) '取得该类别的最大编号
                If max > "" Then '如果存在最大编号
                    idx = val(max) + 1 '获得最大编号的后三位顺序号,并加1
                Else
                    idx = 1 '否则顺序号等于1
                End If

                e.datarow("顺序号") = idx
                e.DataRow("生产编号") = lb & "-" & Format(idx,"000")
            End If
        End If
End Select

1、参考

http://www.foxtable.com/webhelp/scr/2320.htm

或者查询表sql语句union

http://www.foxtable.com/webhelp/scr/0688.htm

2、试试

http://www.foxtable.com/bbs/dispbbs.asp?BoardID=2&ID=116435&skin=0

Dim ddh As String = "订单号"

Dim rq As Date = 今天日期

Dim fdr As DataRow = DataTables("订单主表").find("订单号 = '" & ddh & "'")

fdr("出货日期") = rq

Dim ddh As String = e.form.controls("TextBox1).Text

Dim rq As Date = Date.Today

Dim fdr As DataRow = DataTables("订单主表").find("订单号 = '" & ddh & "'")

fdr("出货日期") = rq