I have a field named Plan_Week. I always want this to be selected as the lastest field in the filter. I have used Select in field trigger. I select the field as Plan_Week. Now when i try to enter manually the lastest week 2011W22 without quotes in the search string field, it works. when i try the formula maxstring(Plan_Week) in the search string, it does not work. It also does not work if i put quotes '' around 2011W22 like '2011W22'.
Can some one help how can i use the maxstring formula in the search string field for the select in field trigger