ok,thanks your instant replay.And the link you given is very helpful.I will carefully read the document later。And i put more detail about my problem,if you can point out my mistake and correct it,it would be great and appreciate your help.My excel like this
and i just want to find out all the rows that the row(“due date”) is over 60 days. and wirte all this row to another datatable.
in the For each row activity,i use the below express to check .
DateTime.Today - DateTime.Parse(row(“due date”).ToString).Days > 60
So how i can add this conditions to the filterexpression?
Or i can use another day to achieve it don’t need to use dt.selcet().
Because i am a green hand,so hope can answer more detail,or give a example attachment.thanks.