Hi,
I've noticed that if I make changes in other projects that the reports project depends upon I need to restart Visual Studio in order for the changes to take affect in preview of the report inside VS.
The simplified solution structure looks like this
Solution
-ReportsProject
-EntityFrameworkProject
-OtherClassLibraryProject
E.g. if I make any changes to a method in OtherClassLibraryProject or create a new method that I then use in my reports I need to restart VS in order to see/get the updated version.
Tomas