In CodeBlocks,how do I run a certain program if multiple project files are open?

[zan nabil]

When i have multiples files (not project files) opened in the view window,if i click on a file and open it and then if i click run, that program builds and runs fine.
But when i have multiple project files,this doesn't happen .
If i have multiple projects opened,then the last project file with main() always gets called each time i press build and run,no matter which file is open in the view window at the moment.
How to run one single file from all these files?

[jlb]

Right click on the program you want to compile and "activate" the project, then compile that program. Any time you want to switch to another program activate that other program.

[zan nabil]

Wow!Didn't see that.
Thanks a lot :-)