If e.DataCol.Name = "报障时间" Then
If e.DataRow.IsNull("报障时间") Then
e.DataRow("故障ID") = Nothing
Else
Dim d As Date = e.DataRow("报障时间")
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 = "MM-" & Format(d,"yyyyMM") & "-" '生成编号的前6位,4位年,2位月.
If e.DataRow("故障ID").StartsWith(bh) = False '如果编号的前6位不符
Dim max As String
Dim idx As Integer
max = e.DataTable.Compute("Max(故障ID)","报障时间 >= #" & fd & "# And 报障时间 <= #" & 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(10,3)) + 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("故障ID") = bh & Format(idx,"000")
End If
End If
End If
[此贴子已经被作者于2018/8/3 15:23:14编辑过]
加好友 
发短信
Post By：2018/8/3 15:22:00 [显示全部帖子]
