类别里有板材 转换成  BC 

型号有  HRB400E

规格里有  20*9米

编号转换成  BCHRB400E209M

请问怎么改写下面写代码老师可以帮助下吗?

Select e.DataCol.Name
    Case "类别"
        If e.DataRow.IsNull("类别") Then
            e.DataRow("编号") = Nothing
        Else
            Dim lb As String = e.DataRow("类别")
            If e.DataRow("编号").StartsWith(lb) = False \'如果单据编号前缀不符
                Dim max As String
                Dim idx As Integer
                max = e.DataTable.Compute("Max(编号)","类别 = \'" & lb & "\' And [_Identify] <> " & e.DataRow("_Identify")) \'取得该类别的最大编号
                If max > "" Then \'如果存在最大编号
                    idx = CInt(max.Substring(2,3)) + 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("编号") = lb & Format(idx,"000")
            End If
        End If
End Select

规格 20*9米 中的 * 号删除   

Dim s As String = "规格"
s = s.Trim("*")

.NET Framework 版本：4.0.30319.1
Foxtable 版本：2020.5.29.8
错误所在事件：表，货物名称设置，DataColChanged
详细错误信息：
Exception has been thrown by the target of an invocation.
Public member \'replce\' on type \'String\' not found.

Select e.DataCol.Name

    Case "类别","规格","型号","牌号","产地"
    e.DataRow("编号") =PY.GetPY(e.DataRow("产地"), True, 3) & "-" &  PY.GetPY(e.DataRow("型号"), True, 3) & "-"  & e.DataRow("牌号") & "-" &  PY.GetPY(e.DataRow("规格").Replace("*","-"), True, 3)
End Select

可以了谢谢老师指导