Provides file and project information to Visual Studio extensions that enable the loading and saving of custom file formats.
Assembly: Microsoft.Data.Entity.Design.Extensibility (in Microsoft.Data.Entity.Design.Extensibility.dll)
Thetype exposes the following members.
|CurrentDocument||Returns the .edmx document after it has been converted from a custom file format.|
|EntityFrameworkVersion||The targeted version of the Entity Framework. (Inherited from ExtensionContext.)|
|Errors||A list of errors that can be shown in the Visual Studio Error List when loading a custom file format and converting it to a custom file format.|
|FileInfo||Returns information about the custom file being processed by the Entity Data Model Designer.|
|OriginalDocument||Returns the original document as opened or saved by the Entity Designer.|
|Project||The current Visual Studio project. (Inherited from ExtensionContext.)|
|ProjectItem||The current Visual Studio project item.|
In a Visual Studio extension, use the class to enable the Entity Data Model Designer (Entity Designer) to load and save files with a custom format. An instance of is passed to the IModelConversionExtension.OnAfterFileLoaded method or the IModelConversionExtension.OnBeforeFileSaved method, which define how custom file formats will be loaded and saved.
By default, the Entity Designer loads and saves .edmx files. The IModelConversionExtension class enables the Entity Designer to load and save files that have a different format. The IModelTransformExtension class, by contrast, transforms an .edmx file before it is displayed in the Entity Designer and before it is saved. These two classes can be used together in the same Visual Studio extension.
For more information about extending the functionality of the ADO.NET Entity Data Model Tools, see Extending the Entity Data Model Tools and ADO.NET Entity Data Model Designer Extension Starter Kit.