专家坐堂-自动编号问题Foxtable(狐表) - 新一代数据库软件，完美融合Access、Foxpro、Excel、vb.net之优势，人人都能掌握的快速软件开发工具!

Dim dt As DataTable = DataTables("订单")

Dim dr As DataRow = dt.Find("客户名称=\'" & e.sender.text & "\'","生产编号 desc")

If dr IsNot Nothing Then

e.Form.controls("订单编号控件").text = dr("订单编号")

e.Form.controls("生产编号控件").text = val(dr("生产编号")) + 1

Else

Dim d As Date = e.DataRow("日期")

Dim y As Integer = d.Year

Dim m As Integer = d.Month

Dim Days As Integer = Date.DaysInMonth(y,m)

Dim fd As Date = New Date(y,m,1) \'获得该月的第一天

Dim ld As Date = New Date(y,m,Days) \'获得该月的最后一天

Dim bh As String = Format(d,"yyyyMM") \'生成编号的前6位,4位年,2位月.

Dim max As String

Dim idx As Integer

max = dt.Compute("Max(订单编号)","日期 >= #" & fd & "# And 日期 <= #" & ld & "# And [_Identify] <> " & e.DataRow("_Identify")) \'取得该月的最大编号

If max > "" Then \'如果存在最大编号

idx = CInt(max.Substring(7,3)) + 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.Form.controls("订单编号控件").text = bh & "-" & Format(idx,"000")

e.Form.controls("生产编号控件").text = Format(m,"00") & "001"

End If