Feature - Add support for Razor Class Library views about prise HOT 5 OPEN

Hi James,

Thanks for your interest, I take a look at your example and see what the culprit is.
I must say in advance that Razor Views are a bit edgy to work with, classic assemblies can be loaded without issue, but including assets (like views) may result in dropping the hotswapping support, as you might've seen in the source code:

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Here is an example project with two RCL's, one statically linked to the web project, one loaded dynamically. By default new RCL's use MVC Areas but I've tried it without areas and get the same result, can call a controller and get a content result but when it returns a view it can't be found.

https://github.com/jakenuts/PriseMvcExample

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Thanks so much!

I was able to load and render Razor Pages if I add a CompiledRazorAssemblyPart after the PluginAssemblyPart. That seems to match how the statically linked RCL works. I added diagnostic views to the example home page so you can see the routes & parts before and after enabling a plugin.

I think the backwards compatability is less of an issue for me, through unloading the assemblies is definitely something I'd hope to preserve. I'll do some tests loading/unloading RCL's with their views to see what sort of objects stick around after they should be gone.

I think the only remaining piece I haven't gotten working is the view location, the controller can be called, razor pages rendered but when it looks for an MVC view it fails - probably a view location list that is created at startup and needs to be updated on load/unload.

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Found it! Needed a CustomViewCompiler that could be reset (Hot Reload does this with the default one). I added a CompiledRazorAssemblyPart along with the PluginAssemblyPart and reset that cache and now it loads and displays the view. Will try to clean it up and see if I can add the new views rather than clearing the entire cache. Guess I'll also need to remove views that are being unloaded. So close..

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@jakenuts Any luck with this, im using it with blazor and im so close

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