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 fd As Date = d.date
Dim ld As Date = fd.adddays(1)
Dim bh As String = "MM-" & Format(d,"yyyyMMdd") & "-" '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(bh.length,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
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Post By：2018/8/6 10:40:00 [只看该作者]
此主题相关图片如下：qq截图20180806103856.png
