SSRS REPORT BUILDER, Comparing two diffrent data sets in one Tablix, Expression

Question

I have two datasets and want to compare them in an expression.

I would like to do something like this: =iif(Fields!Grade.Value = "ONGRADE" > LookupSet(Fields!Grade.Value = "ONGRADE", Fields!grade.Value = "ONGRADE" , Fields!grade.Value = "ONGRADE", "Previous3Week"), "UP" ,"DOWN")

This currently returns "Error" within the "ONGRADE" row.

Answer 1

you need to bind your component with one of the datasets and then accordingly you can write following expression :

=iif(Fields!grade.Value > (Fields!grade.Value, "ONGRADE_DataSet2") , "UP", "DOWN")

in this example, the component is binded with the first dataset and the second dataset is getting referred. This may help.