MEF2: importing all the types implementing a specific interface
Apr 20, 2016 · I just have to load all the assemblies exporting types derived from a specific interface, so I created a simple catalog class, which scans a directory to collect assemblies, and can return a MEF2 container configured with conventions …
Why does MEF2 not apply metadata attributes to all part exports?
Oct 4, 2016 · However, the "DeviceId" metadata is only associated with the latter and not the former, which isn't helpful. There are several ways that I believe this could be resolved though I haven't fully tested: Applying the attribute ExportMetadata("DeviceId", "<<foo>>") to all of my exported parts. Changing the TargetDeviceAttribute to use the ...
mef2 - What is included in MEF 2? - Stack Overflow
Sep 22, 2013 · 5. I know one big feature is support for open generics. This allows us to import parts that look like this: IRepository<T>. {. } using an import that looks like this. [Import(typeof(IRepository<>))] private IRepository<Users> userRepository;
c# - Good examples of MEF2 imports - Stack Overflow
Sep 22, 2013 · 1. 1) The exports are in a different, referenced assembly; As you say, you will need the AggregateCatalog to aggregate a number of catalogs. Usually you will need one catalog for each assembly that contains a part (export/import). This means that you will have to use the AssemblyCatalog class for each one of theses loaded assemblies.
Is MEF or MEF2 baked into the .NET Framework? - Stack Overflow
Nov 2, 2015 · MEF2 in .NET 4.5 (sometimes called MEF2 or MEF), support for composition scopes, ExportFactories. System.Compostion.* from independent package Microsoft.Composition lightweight version of MEF typically called MEF2. The benchmark site refers to lightweight MEF2 System.Compostion.* from Microsoft.Composition package. answered Nov 4, 2015 at 12:41.
Strongly typed metadata in MEF2 (System.Composition)
Dec 17, 2012 · 4. I'm using the System.Composition namespace from the MEF for web and Windows Store apps NuGet package in a new ASP.NET MVC4 project. I've read that in MEF2 you no longer use Lazy<IExtension, IExtensionMetadata>, but now you must provide a concrete type for the metadata view (and possibly use ExportFactory<> instead of Lazy<> ?).
MEF2 Lightweight System.Composition with Metadata
Aug 29, 2019 · The complete lack of examples for how to use lightweight MEF2, System.Composition, makes this tricky. I am only using System.Composition (not System.ComponentModel.Composition). I want to import parts that have metadata. I'm using attributed code. Unfortunately when I try to get the exports I get a big fat null. The …
how can i mimic the inheritedexport feature in mef2
Dec 2, 2015 · So there's 3 Options really: i can't find the renamed feature in MEF 2. i'm not using the right method. i'm missing something obvious. As far as i can tell it should be pretty easy to: check a type for a (custom) attribute, extract desired export type for the type which contains the desired attribute. finish export.
c# - MEF2 and .NET Core - Stack Overflow
Sep 14, 2016 · MEF2 and .NET Core. Ask Question Asked 8 years, 1 month ago. Modified 4 years, 1 month ago. Viewed 2k ...
c# - MEF2 how to get metadata from CompositionHost export …
Aug 20, 2014 · My question now is how to access the metadata on the IRunTimeCheck-types during the export process. With MEF1 I could make use of the ImportMany / Lazy mechanism. Until now I have not found a good way to rebuild this behaviour with MEF2 as all the Export-overloads on 'CompositionHost' do not allow me to access the metadata attributes.