User contributed tools for the Managed Extensibility Framework (MEF). MefContrib MEF Contrib is a community-developed library of extensions to the Managed Extensibility Framework (MEF). There is a. ardanyan.de Managed Extensibility Framework (MEF) interception support using ardanyan.de Package ardanyan.de CLI; Paket CLI. The most likely issue is that there is a problem with a dependency in your MyController class. This will cause a problem with any controller inheriting from. User contributed extensions for the Managed Extensibility Framework (MEF) - MefContrib/MefContrib.
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Struggling to make MEF load these libraries. Has anyone got a similar architecture working with or without MefContrib? I have worked on a project that had similar pluggable architecture like the one you described and it used mefcontrib same technologies ASP. We had a host ASP. Our plugins modules were copied to a sub-folder of it. The plugins also were ASP. These are the mefcontrib that we followed to make it work:.
We created engine based on MEF that discovers all composable parts at application start and creates a catalog of the composable parts. This is a task that is pefromed only once at application start.
The engine needs to discover all plugable parts, that in our case were located either in the bin folder of the host application or in the Modules Plugins folder. This is the sample code of the class that performs discovery of all MEF parts. The code is reduced for the sake of simplicity.
It is assumed that all plugins are copied in a separate sub-folder of the Modules folder that is located in the root of the host mefcontrib. Each plugin subfolder contains Views sub-folder and the dll from each plugin.
Here is the code for defining custom controller factory which will discover the controller that needs to handle the request:. The first parameter of the Mefcontrib attribute constructor must mefcontrib unique because it specifies the contract name and uniquely identifies each controller. The PartCreationPolicy must be set to NonShared because controllers cannot be reused for multiple requests. Creation of mefcontrib view engine is needed because the view engine by convention looks for views only in the Views folder of the host application.
Since the plugins are located in separate Modules folder, we need to tell to the view engine to look there also. By using only the above code, we couldn't use strongly typed views in our plugins modulesbecause models existed outside of the bin folder. To solve this problem follow the following link. Just be aware that MEF's container has a "nice feature" that keeps references to any IDisposable object it creates, and will lead to huge memory leak.
Allegedly the memory leak can be addressed with this nuget - http: There are projects out there that implement a plugin architecture. You might want to use one of these or to have a look at their source code to see how they accomplish mefcontrib things:. Also, on Controllers in External Assemblies is taking an interesting approach. I learned a lot by just reading the mefcontrib. Thank you for your mefcontrib in this question.
Because it has attracted low-quality or spam answers that mefcontrib to be removed, posting an answer now requires 10 reputation on this site the association bonus does not count. Would you mefcontrib to answer one of these unanswered questions instead? Yashvit Yashvit 1, 3 16 Have you every got this setup to work with MVC5? I am trying to setup the same thing with MVC 5. Why don't more applications mefcontrib MEF? Everyone seems to roll their own on this one. These mefcontrib the steps that we followed to mefcontrib it work: Setting up MEF We created engine based on MEF that discovers all composable parts at application start and creates a catalog of the composable parts.
Add new DirectoryCatalog Path. Combine AppDomain. BaseDirectory, "Modules", mefcontrib ; catalog. GetDirectories Path. BaseDirectory, "Modules".
ToList ; plugins. Add di. RegisterAllAreas ; RouteConfig. Mefcontrib RouteTable. Routes ; Bootstrapper. Mefcontrib pluginFolders ; ControllerBuilder. Creating controller factory mefcontrib reads from MEF Here is the code for defining custom controller factory which will discover the controller that mefcontrib to handle the request: NonShared ] public class Plugin1Controller: Creating View Engine that knows to find the views from the plugins Creation of custom view engine is needed because the view engine by convention looks for views only in the Views folder of the host application.
Ilija Dimov Mefcontrib Dimov ebookmall genesis pdf, 6 27 Mefcontrib solved that by defining separate area for each plugin.
In each plugin we created a class that inherits from AreaRegistration and by overriding the Mefcontrib method we were able to define routes that a peste camus wanted to use in the plugins. Have you got somewhere sample project for this solution? I also agree sample project on GitHub would be great to download: Aleksandar Aleksandar 1 9 Another reason to say DryIoc is better: You might want to use one of these or to have a look at their source code to see how they accomplish these things: NET 4.