Hello,
I want to add a parameter value to my charts title so i used the following expression:
="Sales amount " & Parameters!Supplier.Value & " by product category " & Join(Parameters!Year.Value,", ")
This expression returns warning
Operator is not defined for string "Sales amount by product category and type 'Object()' "
I've tried to convert parameter values to string types using CStr function but it didn't worked.
When i close warning window message report renders without any problem and chart title looks as i wanted to.
So what to do to fix that warning?
Best regards.
Lukas