aspnet/Blazor

Discussion on Blazor, a framework for building web apps with .NET and WebAssembly https://blazor.net

Sören Nils Kuklau

@chucker23n:matrix.org

[m]

Apple pie is good

Alberto Passalacqua

@AlbertoPa

Ferrari hired their former designer... why do I feel we'll see a Ferrari with a wheel on the roof? :laughing:

Sören Nils Kuklau

@chucker23n:matrix.org

[m]

I’m glad Jony is gone. He was clearly getting bored and phoning it in.

Alberto Passalacqua

@AlbertoPa

yep

one week to win 11 final

Sören Nils Kuklau

@chucker23n:matrix.org

[m]

Still crashy for me

Also, no new build since the 16th

Alberto Passalacqua

@AlbertoPa

oh?

still the alt-tab?

Sören Nils Kuklau

@chucker23n:matrix.org

[m]

Yep, and the WPF (e.g. VS!) crashes

Alberto Passalacqua

@AlbertoPa

sounds a lot of fun!

Sören Nils Kuklau

@chucker23n:matrix.org

[m]

I’m guessing the latter is a video driver thing but the former seems widely reported

Alberto Passalacqua

@AlbertoPa

maybe they fixed it in the GA images :P

AlbertoPa @AlbertoPa wonders why VS does not have a dialog "add snippet" :P

Alberto Passalacqua

@AlbertoPa

hmm refactor namespace names or not? this is the matter :laughing:

Alberto Passalacqua

@AlbertoPa

did the addition of pages to RCLs change?

I include an RCL in my client, but it does not find the pages (I have it working in 5)

grumble, it does not even download the DLL :-?

SQL-MisterMagoo

@SQL-MisterMagoo

I include an RCL in my client, but it does not find the pages (I have it working in 5)

Working here in a new project -

RCL.csproj

<Project Sdk="Microsoft.NET.Sdk.Razor">
  <PropertyGroup>
    <TargetFramework>net6.0</TargetFramework>
    <Nullable>enable</Nullable>
    <ImplicitUsings>enable</ImplicitUsings>
  </PropertyGroup>

  <ItemGroup>
    <SupportedPlatform Include="browser" />
  </ItemGroup>

  <ItemGroup>
    <PackageReference Include="Microsoft.AspNetCore.Components.Web" Version="6.0.0-rc.1.21452.15" />
  </ItemGroup>
</Project>

App.razor

<Router AppAssembly="@typeof(App).Assembly" AdditionalAssemblies="@(new[]{typeof(RCL.Component1).Assembly})">

Alberto Passalacqua

@AlbertoPa

so you do explicitly load the assemblies?

I thought it was just for lazy loading, but I did this so long ago I forgot :-?

SQL-MisterMagoo

@SQL-MisterMagoo

You have to tell the Router component about the RCL yes

Alberto Passalacqua

@AlbertoPa

yep... that's what I was missing

thanks @SQL-MisterMagoo

SQL-MisterMagoo

@SQL-MisterMagoo

:thumbsup:

Mario van Zeist

@MariovanZeist

@AlbertoPa David is testing a fix for your issue

Morning btw

Tobias Markus

@tobbi_gitlab

Morning.

Alberto Passalacqua

@AlbertoPa

@MariovanZeist I saw (and it is back to runtime)

@MariovanZeist by the way, if you decide to enable NRT, have fun with controllers :laughing:

Sören Nils Kuklau

@chucker23n:matrix.org

[m]

Aren’t models the bigger problem?

Alberto Passalacqua

@AlbertoPa

I am not sure about that. If you pass parameters to controllers and they were declared without ?, they are now required and it throws with a generic 400 error, which is so much fun to spot...

Sören Nils Kuklau

@chucker23n:matrix.org

[m]

Heh

That must be new to 6? Kind of a scary breaking change

Alberto Passalacqua

@AlbertoPa

models eh... some stuff is not so clear. For example, what do you do with Ids in EF?

@chucker23n:matrix.org yes, it broke my search string stuff :laughing:

Sören Nils Kuklau

@chucker23n:matrix.org

[m]

Until they have required properties, writing a model or DTO with NRT is just dumb

Alberto Passalacqua

@AlbertoPa

I mean, the issue is that Ids should not be nullable, but if you leave them non-nullable, you must set them to something, and that is not right either...

(the db should assign them)

Sören Nils Kuklau

@chucker23n:matrix.org

[m]

Yep. What’s missing is “this must be set, but not here”

Alberto Passalacqua

@AlbertoPa

honestly, the feeling is that this approach adds a lot of clutter for little gain

read: too much manual intervention...

on the other hand, what is the exact equivalent to pre-6? Because if you disable NRT, you can't use ?, if you use warnings, you are thrown a bunch of messages if you don't take care of NRTs... :-?

Alberto Passalacqua

@AlbertoPa

hmm a ?-shaped coffee cup...

seems I am not the only one thinking that, in the end, you just ! initialize... dotnet/efcore#15520

Erwin Kuhn

@erwinkn

It seems like the main problem with NRT + ASP.NET stuff (including Blazor) is that the latter simply wasn't designed to fit nullable annotations, right? Basically all problems are a variant of "this is initially null but is filled in later, so all my code will never see it as null"
But the compiler can't know that, unless a lot of magic is involved for the existing frameworks

2 replies

Programming languages that heavily use option types simply design their frameworks differently, so the "create and fill in later" pattern is never there

(from what I've seen)

Alberto Passalacqua

@AlbertoPa

@erwinkn yes, I guess the idea is that the developer needs to explicitly "authorize" that type of flow. It can be quite "funny" though. For example, if a user is authenticated, User is not null, and it has at least some claims, so User.Claims is there and probably the user name too... but now you must do User!.Claims!....

it gets very... ! ;-)

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