本人参考帮助后写的自动编号,有时可以顺序下期,有时又不行,编号不会变,请老师看看那里有问题?Select e.DataCol.Name
Case "作业日期","工程"
If e.DataRow.IsNull("作业日期") OrElse e.DataRow.IsNull("工程") Then
e.DataRow("编号") = Nothing
Else
Dim fd As Date = Date.Today
Dim bh As String = e.DataRow("工程") & "-" & Format(fd,"yyyyMMdd") & "-" '生成编号的前缀
If e.DataRow("编号").StartsWith(bh) = False '如果编号前缀不符
Dim max As String
Dim idx As Integer
Dim flt As String
flt = "编号 like '" & bh & "%' And [_Identify] <> " & e.DataRow("_Identify")
max = e.DataTable.Compute("Max(编号)",flt) '取得该月的相同工程的最大编号
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
'
'idx = CInt(max.Substring(bh.Length)) + 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
If user.name = "1课"
e.DataRow("编号") = bh & "1" & Format(idx,"0000")
Else If user.name = "2课"
e.DataRow("编号") = bh & "2" & Format(idx,"0000")
Else If user.name = "开发者"
e.DataRow("编号") = bh & "0" & Format(idx,"0000")