语法错误,不能这么做.没有这样的语法.
select case e.col.name
case "P_疑问焦点","D_疑问解答","C_方案缺陷","A_方案升级"
if e.row.isnull("P_疑问焦点")=false andalso e.row.isnull("D_疑问解答")=false andalso e.row.isnull("C_方案缺陷")=false andalso e.row.isnull("A_方案升级")=false then
e.Table.ShowToolTip(e.row(e.col.name),e.row,e.col)
end if
end select