Is it possible to search a string, eg. a variable name "bEmployee" in my
project or even in the whole solution ?
Yes, you can use the Edit, Quick Find window, which has a dropdown button to
select Quick Find, Find in files, etc...
If you want a better find, my MZ-Tools add-in (below) has a much better one.

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Best regards,
Carlos J. Quintero
MZ-Tools: Productivity add-ins for Visual Studio
You can code, design and document much faster:
http://www.mztools.com
> Is it possible to search a string, eg. a variable name "bEmployee" in my
> project or even in the whole solution ?