An important shortcut CTRL + PERIOD(.) + ENTER in Visual Studio .NET

Explains the different uses of the short cut CTRL + PERIOD(.) + ENTER in different contexts.

The CTRL + PERIOD(.) + ENTER comes in handy when you type a class (or interface name) in the code editor but the required namespace has not been referred by a using directive. When you place the cursor on such a name and press that key combination, Visual Studio automatically adds the using directive to the code file (if the relevant assembly has already been referred in the project) or generates a code file for a new class by that name (if the assembly has not been referred).

When you type an interface name in the base type list for a class, you can use CTRL + PERIOD(.) + ENTER  to auto-generate stubbed implementations for all interface methods.