为什么客户端 Blazor 使用 .NET Standard 2.0 以及如何将 .NET Core 3.0 与 Blazor 一起使用？

Question

Is it possible to use .NET Core 2.2 or 3.0 with Blazor?

Because at this moment, the blazorhosted template creates a client-side project as .NET Standard which prevents using .NET Core 3.0.

Project blazor.Shared is not compatible with netstandard2.0 (.NETStandard,Version=v2.0). Project blazor.Shared supports: netcoreapp3.0 (.NETCoreApp,Version=v3.0) blazor.Client C:\\app\\blazor.Client\\blazor.Client.csproj 1

After changing everything to .NET Core 3.0, I get the following error:

rzc generate exited with code 1.

So, is it possible and I'm doing something wrong or is there no way yet?

Answer 1

Client side Blazor runs on the Mono WASM runtime, and that only supports netstandard 2.0 ATM. The announcement of Blazor in Core refers to server side Blazor. The two are compatible code wise but the underlaying runtime technique is totally different.

Answer 2

Microsoft.AspNetCore.Mvc.Razor.RuntimeCompilation does not work on blazor because it requires .NET 3.0

As a result it requires a recompile manually every time I make a change which is slow when debugging.