Getting 400 error when running basic auth test on apphost

I have an apphost ``` public class LocalTestAppHost : AppSelfHostBase { public LocalTestAppHost() : base(nameof(LocalTestAppHost), typeof(MyServices).Assembly, typeof(LocalTestAppHost).Ass...

1 Jan at 19:42

How to enable cors in ASP.NET Core 6.0 Web API project?

Configured CORS in my ASP.NET Core 6.0 Web API project. But the preflight request receives a http 405 error. In other words HTTP OPTION is not allowed. Looks like cors is not enabled. I've seen exampl...

How to use dependency injection in WinForms

How to define dependency injection in Winforms C#? Interface ICategory: ``` public interface ICategory { void Save(); } ``` Class CategoryRepository: ``` public class CategoryRepository : ICatego...

24 Dec at 22:10

Compiling C# project to WebAssembly

I need to compile a C# project to WebAssembly and be able to call some methods from JavaScript. I want to use it in an old ASP.NET MVC 4 application that needs to add some new features and I prefer to...

24 Dec at 16:14

Servicestack Test: Method not found: 'Int32 ServiceStack.DataAnnotations.CustomFieldAttribute.get_Order()

Trying to build integration test with connection to db in ServiceStack. My ServiceStack app is working fine, but when I run simple test I got this error message in line:22 There is a lite cod: ``` us...

How to automatically create missing indexes?

``` [Alias("MyTable")] // [References(typeof(MyModelGlobalIndex))] public class MyModel { [HashKey] public new long Id { get; set; } public new long EventId { get; set; } public Meet...

21 Dec at 18:26

Delete orphans in Servicestack ORMLite with junction/join table

I've got a three table keyword structure Team <- TeamKeyword -> Keyword where the middle table is the junction table (join table). I'd like to remove possible orphans from Keyword (not in use in TeamK...

21 Dec at 16:19

Unable to find package Swashbuckle.AspNetCore. No packages exist with this id: Visual Studio Offline Packages

I am struggling with a project I just created on Visual Studio 2019. It's a .net C# project. When I launch the project I get this error : "Unable to find package Swashbuckle.AspNetCore. No packa...

2 May at 14:12

How to inject IConfiguration in asp.net core 6

There is no Startup.cs in the web/api application any more. We used to be able to inject `IConfiguration` into that `Startup` class. ``` public class Startup { public Startup(IConfiguration config...

21 Dec at 15:15

Init-only reference properties with nullable enabled in C# 10.0

I tried to use init-only properties to force client code to initialize my class when they create it, but without a constructor. It's not working as I planned. Here's the class, stripped down to illus...

20 Dec at 22:38

Why in C# do I get a compiler warning CS8618 on init properties

I have this code With the following compiler warning: > [CS8618] Non-nullable property 'SomeProperty' must contain a non-null value when exiting constructor. Consider declaring the property as nullabl...

My System.CommandLine app won't build! It can't find a CommandHandler. Do I need to write it?

I am using VS 2022, .Net 6.0, and trying to build my first app using `System.CommandLine`. Problem: when I build it, I get an error > The name 'CommandHandler' does not exist in the current context Th...

18 Dec at 06:53

ServiceStack OrmLite SelectMulti same table

This is a bit related to this question: [Joining same table multiple times in ServiceStack.OrmLite](https://stackoverflow.com/questions/53436421/joining-same-table-multiple-times-in-servicestack-ormli...

16 Dec at 04:26

Does the Log4j security violation vulnerability affect log4net?

I have recently read about the [zero-day](https://en.wikipedia.org/wiki/Zero-day_(computing)) issue in Log4J. I work with a few applications, written with .NET, that use the [log4net](https://logging....

4 Jan at 22:59

How to change default port no of my .NET core 6 API

I am trying to change default port from properties section of project but I am not able to see any options. I am using visual studio 2022 with .NET core 6.

13 Dec at 10:42

Visual Studio 2022 build failed - but showing no errors

The only strange thing is a warning on the projects, but without any indication of what it is: [](https://i.stack.imgur.com/UvHoz.png) [](https://i.stack.imgur.com/DSaaZ.png) [](https://i.stack.imgur....

11 Dec at 17:43

Foreign key created in shadow and appending random 1 to column name - ASP:NET EF Core

When I migrate my new models and data I get the following error for multiple foreign keys: >The foreign key property 'InsurancePolicy.InsuranceSubjectID1' was created in shadow state because a conflic...

5 May at 16:47

Satisfy() in Fluent Assertions does not work with collections of class objects

I have a class: and a collection of objects of this class: I'd like to assert that each object's `CampusId` equals 38: But the assertion fails with the following message: Expected collection to satisf...

6 May at 07:15

ServiceStack Axios URL special charaters

What is the best way to deal with special characters in URL's with ServiceStack and a Javascript Axios client, or any other client. Example: URL Path: /MasterItems/{Code} - Code can have any character...

8 Dec at 14:36

'Unable to resolve service for type ¨Microsoft.entityFrameworkCore.DbContextOptions¨1[LibraryData.LibraryContext] while attempting to activate

I've run into a problem i cannot solve on my own, so I'm asking for help. I've recently began learning ASP .net core, and wanted to build a library where i have to have a database, login system and ad...

13 Feb at 09:46

NuGet System.Drawing.Common .NET 6 CA1416 This call site is reachable on all platforms. 'Image.FromStream(Stream)' is only supported on: 'windows'

Upgrading NuGet `System.Drawing.Common` to 6.0.0 causes the following error: > CA1416 This call site is reachable on all platforms. 'Image.FromStream(Stream)' is only supported on: 'windows'. [https:/...

15 Dec at 08:42

How do I access the Response Headers using ServiceStack

I'm using react with Redux toolkit but I'm unbale to access the Response headers ``` return await client .get(new Users()) .then((data) => { // how to I access the Response Header here? console.log...

7 Dec at 15:21

error NETSDK1031: It is not supported to build or publish a self-contained application without specifying a RuntimeIdentifier

I am running following command to publish .NET CORE 5.0 web api project using command line on . ``` c:\test\Service>dotnet publish -c release Emp.sln --framework net5.0 /p:DebugType=None /p:DebugSymbo...

Microsoft.Extensions.Hosting.HostFactoryResolver+HostingListener+StopTheHostException

I'm using Asp.Net Core Web Api 6 I'm facing an error when migrating my DbContext and when updating the database The Error ``` [17:07:29 INF] Application Is Starting [17:07:29 FTL] Application terimnat...

Get Configuration value from IHostBuilder in Net 6

I am creating a Worker application using Net 6 and I have in Program.cs: ``` IHostBuilder builder = Host.CreateDefaultBuilder(args); builder.ConfigureHostConfiguration(x => { x.AddJsonFile("setting...

4 Dec at 10:47