'按日期类别自动编号
Dim e = args(0)'定义参数,Args(0)
Dim 类别 As String = args(1) 'Args(1)
Dim 编号 As String = args(2)
Dim 代码 As String = args(3)
Select e.DataCol.Name
Case 日期, 类别
If e.DataRow.IsNull(日期) OrElse e.DataRow.IsNull(类别) Then
e.DataRow(编号) = Nothing
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 = e.DataRow(类别) & "-" & Format(d, "yyyyMM") & "-" '生成编号的前缀
If e.DataRow(编号).StartsWith(bh) = False Then'如果编号前缀不符
Dim max As String
Dim idx As Integer
Dim flt As String
flt = 类别 & " = '" & e.DataRow("类别") & "' And 日期 & " >= #" & fd & "# And " & 日期 & " <= #" & ld & "# And [_Identify] <> " & e.DataRow("_Identify")
max = e.DataTable.Compute("Max(编号)", flt) '取得该月的相同分类的最大编号
If max > "" Then '如果存在最大编号
idx = CInt(max.Substring(12, 4)) + 1 '获得最大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(编号) = bh & Format(idx, "0000")
End If
End If
End Select
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Post By：2024/9/7 12:30:00 [只看该作者]
