How to collapse If, Else, For, Foreach, etc clauses?

Visual studio IDE gives an option to outline the if, for, foreach, while, switch case etc.

Just go to Visual Studio -> Tools -> Options -> Text Editor -> C\C++- > View and set Outline Statement Blocks to true.

In Visual Studio 2012+, the path is Visual Studio -> Tools -> Options -> Text Editor -> C\C++- > Formatting.