Select e.DataCol.Name \'以下代码为先生成"出入库单据号明细"
Case "出入库单据号"
If e.DataRow.IsNull("出入库单据号") Then
e.DataRow("出入库单据号明细") = Nothing
Else
Dim lb As String = e.DataRow("出入库单据号")
If e.DataRow("出入库单据号明细").StartsWith(lb) = False \'如果单据出入库单据号明细前缀不符
Dim max As String
Dim idx As Integer
max = e.DataTable.Compute("Max(出入库单据号明细)","出入库单据号 = \'" & lb & "\' And [_Identify] <> " & e.DataRow("_Identify")) \'取得该出入库单据号的最大出入库单据号明细
If max > "" Then \'如果存在最大出入库单据号明细
idx = CInt(max.Substring(2,3)) + 1 \'获得最大出入库单据号明细的后三位顺序号,并加1
Else
idx = 1 \'否则顺序号等于1
End If
e.DataRow("出入库单据号明细") = lb & Format(idx,"000")
End If
End If
End Select