主题：[讨论]引用

Select Case e.DataCol.name
    Case "商品编号"
        Dim dr As DataRow = DataTables("库存").Find("商品编号 = '" & e.OldValue & "'")
        If dr Is Nothing Then
            dr = DataTables("库存").AddNew()
            dr("商品编号") = e.DataRow("商品编号")
            dr("商品名称") = e.DataRow("商品名称")
            dr("规格") = e.DataRow("规格")
        Else
            dr("商品编号") = e.DataRow("商品编号")
        End If
    Case "商品名称","规格"
        Dim dr As DataRow = DataTables("库存").Find("商品编号 = '" & e.DataRow("商品编号") & "'")
        If dr IsNot Nothing Then
            dr(e.DataCol.Name) = e.DataRow(e.DataCol.Name)
        End If
End Select

老师上面代码不能更新库存表数据