Provides file and project information to Visual Studio extensions that extend the file loading and saving of .edmx files by the Entity Data Model Designer.
Assembly: Microsoft.Data.Entity.Design.Extensibility (in Microsoft.Data.Entity.Design.Extensibility.dll)
Thetype exposes the following members.
|CurrentDocument||The current .edmx file on which Visual Studio extensions may operate.|
|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 .edmx files are loaded or saved by the Entity Data Model Designer.|
|OriginalDocument||The original .edmx file that was loaded into memory.|
|Project||The current Visual Studio project. (Inherited from ExtensionContext.)|
|ProjectItem||The current Visual Studio project item.|
In a Visual Studio extension, the class is used when you want to extend the loading and saving of .edmx files by the Entity Data Model Designer (Entity Designer). An instance of is passed to the OnAfterModelLoaded or OnBeforeModelSaved methods, which define custom file loading and saving functionality of .edmx files.
By default, the Entity Designer loads and saves .edmx files. The IModelTransformExtension class transforms an .edmx file before it is displayed in the Entity Designer and before it is saved. The IModelConversionExtension class, by contrast, enables the Entity Designer to load and save files with a different format. 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.