Data tab works great but i can't get it work in Preview tab in reporting services

This code works great in data tab but when i go to preview it i get a len function error.
I am passing possible BLANK values in all the strings not NULL. Do you think its an parameter expression issue? If so, how do I write a expression for each parameter that will reflect this logic. NOTE: As you can see states and program are multi param, and I don't know ahead of time what values will be entered. So if some could please help.
SELECT DISTINCT A.RECIPIENT_STATE, B.FISCAL_YEAR, B.FEDERAL_SHARE, B.NON_FEDERAL_SHARE
FROM Tab_Awards AS A JOIN TAB_Amendments AS B ON A.AWARD_NUMBER = B.AWARD_NUMBER JOIN Tab_Program AS C
ON A.FPO_ID = C.FPO_ID
WHERE (LEN(@.keywords)<1 OR (FREETEXT(A.*,@.keywords)))
AND (LEN(@.states)<1 OR A.RECIPIENT_STATE IN (@.states))
AND (LEN(@.program) <1 OR C.PROGRAM IN (@.program))
AND (LEN(@.fromYear)<1 OR B.FISCAL_YEAR >= @.fromYear)
AND (LEN(@.toYear)<1 OR B.FISCAL_YEAR <= @.toYear)
AND (LEN(@.year)<1 OR LEN(@.year)>=1)
AND (LEN(@.organization)<1 OR LEN(@.organization)>=1
From http://www.developmentnow.com/g/115_0_0_0_0_0/sql-server-reporting-services.ht
Posted via DevelopmentNow.com Group
http://www.developmentnow.comWhat exactly is the error ? Why I am asking is that len must be evaluating
some numeric value e.g year parameter must be having numeric and Len will
take string expression only. So Just have a look at all the parameters again
and see their data type.
Amarnath
"Dre" wrote:
> This code works great in data tab but when i go to preview it i get a len function error.
> I am passing possible BLANK values in all the strings not NULL. Do you think its an parameter expression issue? If so, how do I write a expression for each parameter that will reflect this logic. NOTE: As you can see states and program are multi param, and I don't know ahead of time what values will be entered. So if some could please help.
> SELECT DISTINCT A.RECIPIENT_STATE, B.FISCAL_YEAR, B.FEDERAL_SHARE, B.NON_FEDERAL_SHARE
> FROM Tab_Awards AS A JOIN TAB_Amendments AS B ON A.AWARD_NUMBER = B.AWARD_NUMBER JOIN Tab_Program AS C
> ON A.FPO_ID = C.FPO_ID
> WHERE (LEN(@.keywords)<1 OR (FREETEXT(A.*,@.keywords)))
> AND (LEN(@.states)<1 OR A.RECIPIENT_STATE IN (@.states))
> AND (LEN(@.program) <1 OR C.PROGRAM IN (@.program))
> AND (LEN(@.fromYear)<1 OR B.FISCAL_YEAR >= @.fromYear)
> AND (LEN(@.toYear)<1 OR B.FISCAL_YEAR <= @.toYear)
> AND (LEN(@.year)<1 OR LEN(@.year)>=1)
> AND (LEN(@.organization)<1 OR LEN(@.organization)>=1)
> From http://www.developmentnow.com/g/115_0_0_0_0_0/sql-server-reporting-services.htm
> Posted via DevelopmentNow.com Groups
> http://www.developmentnow.com
>