sql server - Set local variable in rdlc expression -


is possible somehow create variable in rdlc report expression in 'online' manner?

for example, have following expression:

=iif(first(fields!billingaccount_billtostateprovince.value, "invoice") <> "",  first(fields!billingaccount_billtostateprovince.value, "invoice") + " ",  "")

i suppose i'm evaluating following expression first(fields!billingaccount_billtostateprovince.value, "invoice") twice. don't , looks ugly... prefer create variable in scope of current expression , use it.

is possible?

as user3056839 said, welcome ssrs!

anyway, want not possible since writing right not script it's expression. it's single statement returns value, cannot declare variables, use loops or part of script.

you have use writing.

also it's not rare see iif expression yours. 1 see iff( not null, , 'n/a'). field may evaluated twice, there's nothing can do. it's ugly it's way can that.

just think case when clause:

select  case when myfield not null    myfield else 0 end

you evaluating field twice, there's nothing can :)


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