Select e.DataCol.Name
Case
"制单日期","工程代码"
If e.DataRow.IsNull("制单日期")
OrElse e.DataRow.IsNull("工程代码")
Then
e.DataRow("单据编号") = Nothing
Else
Dim d As
Date = e.DataRow("制单日期")
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("工程代码") & "-" & Format(d,"yyyyMM") & "-"
'生成编号的前缀
If e.DataRow("单据编号").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 = "工程代码 = '"&
e.DataRow("工程代码") & "' And 制单日期 >=
#" & fd & "# And 制单日期 <=
#" & ld & "# And [_Identify]
<> " & e.DataRow("_Identify")
max = e.DataTable.Compute("Max(单据编号)",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("单据编号") = bh
& Format(idx,"0000")
End
If
End
If
End
Select
加好友 
发短信
Post By：2017/1/22 22:09:00 [只看该作者]
