Command to collapse all sections of code? In Visual Studio

This post is for beginner and advance .net developer.When you know short cut in visual studio you code speed is good.
In Visual Studio (Any) is there a command to collapse/expand all the sections of code in a file?

Kindly follow the below screen :-

Right click in editor -> Outlining to find all options. (After disabling outlining, use same steps to enable outlinging.)

Thank you ....................