In SSRS, why do I get the error “item with same key has already been added” , when I’m making a new report?
It appears that SSRS has an issue(at leastin version 2008) – I’m studying this website that explains it Where it says if you have two columns(from 2 diff. tables) with the same name, then it’ll cause that problem. From source: SELECT a.Field1, a.Field2, a.Field3, b.Field1, b.field99 FROM TableA a JOIN TableB b on a.Field1 = … Read more