-- 作者：ZHX88863808
-- 发布时间：2015/10/14 14:19:00
-- [求助]解惑相同自动编号代码，表A行，表B不行
表A自动编号：
Select e.DataCol.Name
Case "订单日期","类别"
If e.DataRow.IsNull("订单日期") OrElse e.DataRow.IsNull("类别") Then
e.DataRow("订单编号") = Nothing
Else
Dim d As Date = e.DataRow("订单日期")
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 = e.DataRow("类别") & "-" & Format(d,"yyyyMM") & "-" \'生成编号的前缀
If e.DataRow("订单编号").StartsWith(bh) = False \'如果单据编号前缀不符
Dim max As String
Dim idx As Integer
Dim flt As String
flt = "类别 = \'"& e.DataRow("类别") & "\' And 订单日期 >= #" & fd & "# And 订单日期 <= #" & ld & "# And [_Identify] <> " & e.DataRow("_Identify")
max = e.DataTable.Compute("Max(订单编号)",flt) \'取得该月的相同工程代码的最大单据编号
If max > "" Then \'如果存在最大单据编号
idx = CInt(max.Substring(12,4)) + 1 \'获得最大单据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("订单编号") = bh & Format(idx,"0000")
End If
End If
End Select
表B自动编号：
Select e.DataCol.Name
Case "销售日期","类别"
If e.DataRow.IsNull("销售日期") OrElse e.DataRow.IsNull("类别") Then
e.DataRow("销售编号") = Nothing
Else
Dim d As Date = e.DataRow("销售日期")
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 = e.DataRow("类别") & "-" & Format(d,"yyyyMM") & "-" \'生成编号的前缀
If e.DataRow("销售编号").StartsWith(bh) = False \'如果单据编号前缀不符
Dim max As String
Dim idx As Integer
Dim flt As String
flt = "类别 = \'"& e.DataRow("类别") & "\' And 销售日期 >= #" & fd & "# And 销售日期 <= #" & ld & "# And [_Identify] <> " & e.DataRow("_Identify")
max = e.DataTable.Compute("Max(销售编号)",flt) \'取得该月的相同工程代码的最大单据编号
If max > "" Then \'如果存在最大单据编号
idx = CInt(max.Substring(12,4)) + 1 \'获得最大单据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("销售编号") = bh & Format(idx,"0000")
End If
End If
End Select
请问前辈老师：一样的代码，表A能自动编号，而表B则不能，不知为什么，请前辈老师帮忙看一下，谢谢！
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