visual studio 2010 - Error on RDLC Expression -

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i using exp calculate total fees paid on rdlc report:

=sum(iif(fields!responsedescription.value ="approved successful",int(fields!amount.value), 0))

and #error in resulting column , can issue ? .

and similar exp above work fine :

=sum(iif(fields!responsedescription.value <> "",int(fields!amount.value), 0))

few notes:

1- amount integer , present.

2- responsedescription string , present.

thank you

you can use expression:

=sum(cint(iif(fields!responsedescription.value ="approved successful", fields!amount.value, 0)))

you have convert every possible values same type before aggregation.

i think second expression works fine because in true case (fields!responsedescription.value <> "") used expression converted integer.


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