主题：if问题

case "A","B","C","D","E","F","G"

    if e.datarow.isnull("A") andalso e.datarow.isnull("B") andalso e.datarow.isnull("C") andalso e.datarow("D") = "出售" andalso e.datarow("E") = "出售" andalso e.datarow("F") = "未出售" andalso e.datarow("G") = "未出售" then

     e.datarow("M") = "停止出售"

else

    e.datarow("M") = nothing

end if

end select