uwp project missing

[vscodewinodws]

by generating project described in blog
https://devblogs.microsoft.com/aspnet/mobile-blazor-bindings-experiment/

creates android and ios project missing uwp projects , why hate for windows from Microsoft ?
we need UWP app along side with this projects.

[Eilon]

It wasn't added mostly due to time constraints. You should be able to manually add a UWP project by creating one as part of a Xamarin.Forms project, but pointing it at your shared UI project with Mobile Blazor Bindings. We will look into adding a UWP template here as well.

[Eilon]

Also please note that we've never tried it, so if you do try it, please let us know if it works or if you ran into any issues.

[Knudel]

I don't know if I am doing it right, but I get an exception:

System.PlatformNotSupportedException: 'EventLog access is not supported on this platform.'

On the line:

 var host = Host.CreateDefaultBuilder()
            .ConfigureServices((hostContext, services) =>
            {
                // Register app-specific services
                //services.AddSingleton<AppState>();
            })
            .Build();

[Eilon]

Oh darn. Generic Host has a few default things that don't seem to be working on iOS or UWP. I will investigate and get an answer.

@Tratcher / @glennc - do you know how I can use Generic Host, but disable certain default things, such as EventLog, file watchers for config changes, etc.?

This is how Generic Host is used in the templates:

https://github.com/xamarin/MobileBlazorBindings/blob/master/templates/MobileBlazorBindings-app/NewApp/App.cs#L12-L18

[Tratcher]

@Knudel what's the stack trace for that exception?

@Eilon I expect you'll need to move from Host.CreateDefaultBuilder() to new HostBuilder() and/or provide your own platform defaults.

[Knudel]

@Tratcher new HostBuilder() did the trick, thank you.

UWP is working..

(Do you still need the stack trace?)

This exception was originally thrown at this call stack:
	System.Diagnostics.EventLog.EventLog(string, string, string)
	Microsoft.Extensions.Logging.EventLog.EventLogSettings.CreateDefaultEventLog()
	Microsoft.Extensions.Logging.EventLog.EventLogSettings.EventLog.get()
	Microsoft.Extensions.Logging.EventLog.EventLogLogger.EventLogLogger(string, Microsoft.Extensions.Logging.EventLog.EventLogSettings, Microsoft.Extensions.Logging.IExternalScopeProvider)
	Microsoft.Extensions.Logging.EventLog.EventLogLoggerProvider.CreateLogger(string)
	Microsoft.Extensions.Logging.LoggerFactory.CreateLoggers(string)
	Microsoft.Extensions.Logging.LoggerFactory.CreateLogger(string)
	System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
	Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitConstructor(Microsoft.Extensions.DependencyInjection.ServiceLookup.ConstructorCallSite, Microsoft.Extensions.DependencyInjection.ServiceLookup.RuntimeResolverContext)

[Tratcher]

Ah, there's an isWindows check, but that's not good enough for UWP.
https://github.com/dotnet/extensions/blob/dea81ef6ca214e023f918ac32c2d9e9facf13672/src/Hosting/Hosting/src/Host.cs#L110-L114

Feel free to file an issue on that.

[vscodewinodws]

there should be proper documentation how to do add uwp support in MobileBlazorBindings . there is well documented docs for xamarin forms in case uwp needs to be added later and earlier was not selected for creation , i tried to take that reference and failed seems there is difference between this and xamarin forms xaml page app

[Eilon]

@vscodewinodws I'm keeping this issue to track proper UWP support.

[jamesmontemagno]

@Eilon can look at how I do it: https://montemagno.com/add-asp-net-cores-dependency-injection-into-xamarin-apps-with-hostbuilder/

[vscodewinodws]

@jamesmontemagno I gone through your link I am familiar with asp.net core and Xamarin still I am not able to closely relate it how it will solve my problem I still think there should be step by step documentation which will help all developer like we have for Xamarin forms

[AutumnEvans418]

Another option is to remove the EventLog source like so in the webhost builder

.ConfigureLogging(d =>
                {
                    d.ClearProviders();
                    d.AddConsole();
                })

[freever]

@chrisevans9629 that works on UWP and Android but throws PlatformNotSupported on iOS :)

[freever]

var host = new HostBuilder() works on UWP and iOS, but not Android

[freever]

So it looks like there's a MobileBlazorBindingsHost that works.

@Eilon I have added a UWP project for the Hello World sample, do you want a PR? I could take a stab at the other samples too.

[AutumnEvans418]

@freever I made a pull request for a UWP todo list sample awhile back. I need to update it to use the mobileblazorbindingsHost though:
#62

[Eilon]

Thank you I will take a look! BTW sorry things have been a bit slow. I'm home with 2 kids full time due to virus lockdown and daycare not available. But I assure you that I spent what previous little time I have on Mobile Blazor Bindings!

[brunoprietog]

Hi! I am delighted with this. Is there any news?