ModelTransformExtensionContext Class

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.


Namespace:  Microsoft.Data.Entity.Design.Extensibility
Assembly:  Microsoft.Data.Entity.Design.Extensibility (in Microsoft.Data.Entity.Design.Extensibility.dll)

public abstract class ModelTransformExtensionContext : ExtensionContext

The ModelTransformExtensionContext type exposes the following members.

Protected methodModelTransformExtensionContextInstantiates a new instance of ModelTransformExtensionContext.

Public propertyCurrentDocumentThe current .edmx file on which Visual Studio extensions may operate.
Public propertyEntityFrameworkVersionThe targeted version of the Entity Framework. (Inherited from ExtensionContext.)
Public propertyErrorsA 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.
Public propertyOriginalDocumentThe original .edmx file that was loaded into memory.
Public propertyProjectThe current Visual Studio project. (Inherited from ExtensionContext.)
Public propertyProjectItemThe current Visual Studio project item.

Public methodEquals (Inherited from Object.)
Protected methodFinalize (Inherited from Object.)
Public methodGetHashCode (Inherited from Object.)
Public methodGetType (Inherited from Object.)
Protected methodMemberwiseClone (Inherited from Object.)
Public methodToString (Inherited from Object.)

In a Visual Studio extension, the ModelTransformExtensionContext 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 ModelTransformExtensionContext 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.

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.