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Editor imports

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You can import a number of editor services, factories, and brokers that provide your extension with different kinds of access to the core editor. For example, you can import the ITextStructureNavigatorSelectorService to provide you with a ITextStructureNavigator for a given content type. (This navigator allows you perform different kinds of searches on a text buffer.)

To use an editor import, you import it as a field or property of a class that exports a Managed Extensibility Framework component part.

Note

For more information about the Managed Extensibility Framework, see Managed Extensibility Framework (MEF).

Import syntax

The following example shows how to import the editor options factory service.

[Import]
internal IEditorOptionsFactoryService EditorOptions { get; set; }

If you want to import the service as a field and not a property, you should set it to null in the declaration in order to avoid the compiler warnings about not assigning to a variable:

[Import]
internal IEditorOptionsFactoryService m_editorOptions = null;

For more examples of using imports, see the following walkthroughs:

Import the service provider

You can also import a SVsServiceProvider (found in the assembly Microsoft.VisualStudio.Shell.Immutable.10.0) in the same way to get access to Visual Studio services:

[Import]
internal SVsServiceProvider ServiceProvider = null;

See Walkthrough: Access the DTE object from an editor extension for more information.

Services

Editor services are generally single entities that provide a service and are shared across multiple components.

Import Provides
IFileExtensionRegistryService The relationship between file extensions and IContentType objects.
IContentTypeRegistryService The collection of IContentType objects.
IVsFontsAndColorsInformationService IVsFontsAndColorsInformation objects.
IVsEditorAdaptersFactoryService Many editor adapter objects:

IVsCodeWindow

IVsTextBuffer

IVsTextBufferCoordinator

IVsTextView
IIncrementalSearchFactoryService An IIncrementalSearch object for a given text view.
ITextBufferFactoryService An ITextBuffer.
ITextDocumentFactoryService An ITextDocument.
IDifferenceService An IDifferenceCollection<T> of differences.
IHierarchicalStringDifferenceService An IHierarchicalDifferenceCollection of differences.
IProjectionBufferFactoryService An IProjectionBuffer or an IElisionBuffer.
IBufferGraphFactoryService An IBufferGraph for a set of ITextBuffer objects.
IClassifierAggregatorService An IClassifier for a ITextBuffer.
IViewClassifierAggregatorService An IClassifier for a ITextView.
IClassificationFormatMapService An IClassificationFormatMap for a ITextView.
IEditorFormatMapService An IEditorFormatMap for a ITextView.
IClassificationTypeRegistryService Maintains the collection of IClassificationType objects.
IBufferTagAggregatorFactoryService An ITagAggregator<T> for a text buffer.
IViewTagAggregatorFactoryService An ITagAggregator<T> for a text view.
IEditorOptionsFactoryService The IEditorOptions for the specified scope.
IScrollMapFactoryService An IScrollMap for a text view.
ISmartIndentationService An ISmartIndent for a ITextView.
ISmartIndentationService Gets the automatic indentation through the ISmartIndentProvider objects.
ITextEditorFactoryService Manages the IWpfTextViewHost for a IWpfTextView.
IFormattedTextSourceFactoryService An IFormattedLineSource.
IRtfBuilderService Generates RTF-formatted text from a set of snapshot spans.
ITextAndAdornmentSequencerFactoryService An ITextAndAdornmentSequencer for an ITextView.
ITextParagraphPropertiesFactoryService A TextParagraphProperties for formatting text lines in a view.
IEditorOperationsFactoryService A IEditorOperations object for an ITextView.
ITextSearchService Searches a text snapshot.
ITextStructureNavigatorSelectorService An ITextStructureNavigator for an ITextBuffer by IContentType.
IOutliningManagerService An IOutliningManager for a text view.
IGlyphService A standard set of glyphs.
IIntellisenseSessionStackMapService An IIntellisenseSessionStack for a ITextView.
IWpfKeyboardTrackingService Tracks keyboard handling.
IStandardClassificationService Standard IClassificationType objects.
ITextUndoHistoryRegistry Maintains the relationship between text buffers and ITextUndoHistory objects.

Other imports

Provider factories and brokers are generally entities that can have multiple instances in multiple components.

Import Provides
IErrorProviderFactory A SimpleTagger<T> of type ErrorTag) for the given buffer.
ITextMarkerProviderFactory A text marker tagger (a SimpleTagger<T> of type TextMarkerTag).
IToolTipProviderFactory An IToolTipProvider for a given ITextView.
ICompletionBroker An ICompletionSession.
IQuickInfoBroker An IQuickInfoSession.
ISignatureHelpBroker An ISignatureHelpSession.

See also