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Language Service Overview (Managed Package Framework)

A language service provides editor support that lets you implement certain Visual Studio features. The Managed Package Framework (MPF) language service classes provide full support for frequently-used features and partial support for other features.

The MPF language service classes support the following features:

  • Syntax highlighting

  • Outlining

  • Commenting blocks of code

  • Brace matching

  • Code snippets

  • Custom document properties

  • IntelliSense parameter information

  • IntelliSense Quick Info

  • IntelliSense member completion

  • IntelliSense word completion

The MPF provides only partial support for the following features. This means that you must implement the methods that are called by the MPF.

  • Reformatting code. You supply the code that implements the reformatting.

  • Validating breakpoints by identifying valid code spans. You supply the code that identifies the code spans.

  • Supporting the debugger Autos window for displaying variables. You supply the code that determines what to show in the window.

  • Supporting the Navigation bar for quick navigation between types and members. You implement and return a helper class that populates the lists in the Navigation bar combo boxes.

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