IntelliSense completion for unimported types and extension methods

This refactoring applies to:

• C#

• Visual Basic

What: IntelliSense gives completion for unimported types and extension methods.

When: You want to use a type or extension methods that already has a dependency in your project but the using statement has not yet been added to your file.

Why: You don't have to manually add the using statement to your file.

How-to

1. Once you start typing the name of a type or extension method that has a dependency in your project, IntelliSense will give you suggestions. Items from unimported namespaces would have their containing namespace shown as suffix.

   Tip

   You can show/hide items from unimported namespaces on demand, using the Expander button (Alt + A) that appears at the bottom left of the completion list. To change the default behavior, go to Tools > Options > Text Editor > C# (or Visual Basic) > IntelliSense and look for Show items from unimported namespaces.

2. Select and commit an unimported item.

   The using statement will be automatically added to your file.

   

See also

• IntelliSense
• Refactoring