How to remove unused using namespaces

Question

I am using visual studio 2010 and was wondering if there is a way to automatically remove all the namespaces that aren't being used at the the top of the page e.g.

using System; using System.Collections.Generic; using System.Linq; using System.Xml.Linq; 

in the above example System.Collections.Generic is not being used is there a way to know that without trial and error.

Answer 1

Yes you can right click on the page and from the menu select;

Organise Usings > Remove Unused Usings 

Alternatively if you prefer shortcuts, please use;

Ctrl + R + G 

I am using this all the time, to clean up code, and make code compilation quicker.

Or you can use PowerCommands to remove unused usings for entire projects

Answer 2

In Visual Studio 2017, I use this very simple key combinations: CTRL+R+G to remove unused imports/namespaces

Update:

In VS for Mac:

Unfortunately, there's no default key binding for this but you can always edit your preferences.

Visual Studio -> Preferences

In my case, it is binded as ⌘+R+G