入库编号到了 202101-1000,在新增还是这个编号,代码应该怎么改下啊
Select Case e.DataCol.Name
Case "录入日期" '[入库编号] 自动编号
If e.DataRow.IsNull("录入日期") Then
e.DataRow("入库编号") = Nothing
Else
Dim d As Date = e.DataRow("录入日期")
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.
If e.DataRow("入库编号").StartsWith(bh) = False '如果编号的前6位不符
Dim max As String
Dim idx As Integer
max = e.DataTable.SQL Compute("Max(入库编号)","录入日期 >= #" & fd & "# And 录入日期 <= #" & 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.DataRow("入库编号") = bh & "-" & Format(idx,"000")
End If
End If
End Select