What's the keyboard shortcut for Visual Studio 2005 and Visual Studio 2008 to display the IntelliSense box if one accidentally hits ESC and wants the box come back again?
Ctrl + Space
or
Ctrl + J
You can also go to menu Tools → Options → Environment → Keyboard and check what is assigned to these shortcuts. The command name should be Edit.CompleteWord.
Additionally, Ctrl + K, Ctrl + I shows you Quick info (handy inside parameters)
Ctrl+Shift+Space shows you parameter information.
The most efficient one is Ctrl + ..
It helps to automate insertions of using directives. It works if the focus is on a new identifier, e.g. class name.
Ctrl+Space should do it.
It should be Ctrl + J.
If you have arrived at this question because IntelliSense has stopped working properly and you are hoping to force it to show you what you need, then most likely none of these solutions are going to work.
Closing and restarting Visual Studio should fix the problem.
Alt + Right Arrow and Alt + Numpad 6 (if Num Lock is disabled) are also possibilities.
If you want to change whether it highlights the best fitting possibility, use:
Ctrl + Alt + Space
In Visual Studio 2015 this shortcut opens a preview of the definition which even works through typedefs and #defines.
Ctrl + , (comma)
On Visual Studio Community 7.5.3 on Mac this works for me:
Ctrl + Space
来源：https://stackoverflow.com/questions/3640544/visual-studio-keyboard-shortcut-to-display-intellisense