If e.DataCol.Name = "接单日期" Then If e.DataRow.IsNull("接单日期") Then e.DataRow("工单编号") = Nothing Else Dim d As Date = e.DataRow("接单日期") Dim y As Integer = d.Year Dim m As Integer = d.Month 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 bh As String = Format(d,"yyMM") '生成编号的前6位,4位年,2位月. If e.DataRow("工单编号").StartsWith(bh) = False '如果编号的前4位不符 Dim max As String Dim idx As Integer max = e.DataTable.Compute("Max(工单编号)","接单日期 >= #" & fd & "# And 接单日期 < #" & 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(bh.length)) + 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("工单编号") = bh & Format(idx,"0000") End If End If End If
|