RegisterEditorExtensionAttribute RegisterEditorExtensionAttribute RegisterEditorExtensionAttribute RegisterEditorExtensionAttribute RegisterEditorExtensionAttribute Class



This API is now obsolete.

See ProvideEditorExtensionAttribute. Registers a file extension with a given editor factory. This class cannot be inherited.

public ref class RegisterEditorExtensionAttribute sealed : Microsoft::VisualStudio::Shell::RegistrationAttribute
public ref class RegisterEditorExtensionAttribute sealed : Microsoft::VisualStudio::Shell::RegistrationAttribute
[System.AttributeUsage(System.AttributeTargets.Class, AllowMultiple=true, Inherited=true)]
[System.Obsolete("RegisterEditorExtensionAttribute has been deprecated. Please use ProvideEditorExtensionAttribute instead.")]
public sealed class RegisterEditorExtensionAttribute : Microsoft.VisualStudio.Shell.RegistrationAttribute
type RegisterEditorExtensionAttribute = class
    inherit RegistrationAttribute
Public NotInheritable Class RegisterEditorExtensionAttribute
Inherits RegistrationAttribute


When to Call

Apply the RegisterEditorExtensionAttribute attribute to classes implementing an editor factory

Basic Usage

This attribute associates a file extension with a given editor factory. The file extension should include the prefixing ".".

This attribute is used only for registration purposes and does not affect runtime behavior. It should be placed on a package class.

Each editor factory also has an associated priority. For a given file extension, the editors with the highest priority number are given the chance to read a file first. If the editor fails to read the file, the remaining editors are used in order of priority. To use RegisterEditorExtensionAttribute, place it on a package class, such as Package or IVsPackage.

Registry Entries

The following registry entry is created by RegisterEditorExtensionAttribute:


Note The GUIDS for the Visual C# and Visual Basic project types are:

C#: {FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}

VB: {F184B08F-C81C-45F6-A57F-5ABD9991F28F}


You can find implementations of RegisterEditorExtensionAttribute in the managed samples. The standard location for this and all other attributes used for automatic registration is adjacent to the implementation of Package in VsPkg.cs, VsPkg.vb, or VsPkg.cpp, depending on the language used in the sample.


C# automatically appends the word Attribute to the name of any attribute class. In C# code, refer to this attribute as RegisterEditorExtension.


RegisterEditorExtensionAttribute(Object, String, Int32) RegisterEditorExtensionAttribute(Object, String, Int32) RegisterEditorExtensionAttribute(Object, String, Int32) RegisterEditorExtensionAttribute(Object, String, Int32) RegisterEditorExtensionAttribute(Object, String, Int32)

Initializes a new RegisterEditorExtensionAttribute for the supplied factory type and extension.


EditorFactoryNotify EditorFactoryNotify EditorFactoryNotify EditorFactoryNotify EditorFactoryNotify

Gets or sets whether or not to create the EditorFactoryNotify registry key on registration.

Extension Extension Extension Extension Extension

Gets the file extension of the file.

Factory Factory Factory Factory Factory

Gets the editor factory GUID.

NameResourceID NameResourceID NameResourceID NameResourceID NameResourceID

Gets or sets the name resource ID.

Priority Priority Priority Priority Priority

Gets the priority of this extension registration.

ProjectGuid ProjectGuid ProjectGuid ProjectGuid ProjectGuid

Gets or sets the project GUID.

TemplateDir TemplateDir TemplateDir TemplateDir TemplateDir

Gets or sets the template directory.

TypeId TypeId TypeId TypeId TypeId

Gets the current instance of this attribute.

(Inherited from RegistrationAttribute)


GetPackageRegKeyPath(Guid) GetPackageRegKeyPath(Guid) GetPackageRegKeyPath(Guid) GetPackageRegKeyPath(Guid) GetPackageRegKeyPath(Guid)

Gets the registry path (relative to the registry root of the application) of the VSPackage.

(Inherited from RegistrationAttribute)
Register(RegistrationAttribute+RegistrationContext) Register(RegistrationAttribute+RegistrationContext) Register(RegistrationAttribute+RegistrationContext) Register(RegistrationAttribute+RegistrationContext) Register(RegistrationAttribute+RegistrationContext)

Registers the editor extension.

Unregister(RegistrationAttribute+RegistrationContext) Unregister(RegistrationAttribute+RegistrationContext) Unregister(RegistrationAttribute+RegistrationContext) Unregister(RegistrationAttribute+RegistrationContext) Unregister(RegistrationAttribute+RegistrationContext)

Removes the editor extension registry key.

Applies to