If e.DataCol.Name = "rq" Then
If e.DataRow.IsNull("rq") Then
e.DataRow("xsbh") = Nothing
Else
Dim d As Date = e.DataRow("rq")
Dim bh As String = Format(d,"yyyyMMdd") '取得编号的8位前缀
Dim d1 As Date = new Date(d.Year,d.Month,1)
If e.DataRow("xsbh").StartsWith(bh) = False '如果编号的前8位不符
Dim max As String
Dim idx As Integer
max = e.DataTable.Compute("Max(xsbh)","rq >= #" & d1 & "# and rq < #" & d1.AddYears(1) & "# And [_Identify] <> " & e.DataRow("_Identify")) '取得该天的最大编号
If max > "" Then '如果存在最大编号
idx = CInt(max.Substring(9,3)) + 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("xsbh") = bh & "-" & Format(idx,"000")
End If
End If
End If
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Post By：2020/6/20 12:39:00 [只看该作者]
