Visual Studio hotkey to switch between code behind and source file?

Question

I use the Shift + F7 often to switch between source and design view.

Does anyone know of a hotkey to switch between the source file

Answer 1

In VS 2013 it is

1. Tools > Options > Environment > Keyboard

2. Type "View.Toggle" or "View.ToggleDesigner" (the command could be either depending on the version of VS) in Show Commands Containing:

3. Make Sure Use new shortcut in: is set to Global

4. Put cursor in Press shortcut keys: box

5. Hit F7 then the Assign button