sql - How to check for NULL values when using the SUM function in SSRS -


by default, sum function in ssrs excludes nulls. want able check null values in details group , throw error in summary group. in details view use check nulls:

=iif(isnothing(fields!equityprice.value)) ,"#error", fields!equityprice.value*fields!equityshares.value)

this works desired.

when use in summary section, ignores nulls , returns sum of non-null values. want return "#error" instead:

=iif(isnothing(sum(fields!equityprice.value))) ,"#error", sum(fields!equityprice.value*fields!equityshares.value))

i have tried eliminating sum in "isnothing" expression no avail. appreciated. in advance!

so confirm, if there @ least 1 null value in group, #error should displayed?

you can use following summary expression:

=iif(sum(iif(isnothing(fields!equityprice.value),1,0)) > 0   , "#error"   , sum(fields!equityprice.value * fields!equityshares.value))

this creates count of null values - if count greater zero, return #error.

i made simple report test:

enter image description here

enter image description here

this uses expression @ detail level , mine @ summary. errors group 1 null value required:

enter image description here


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