How to use C#10 in Visual Studio 2019

How can I use C# 10 in Visual Studio 2019? I have latest update (16.11.6) and when I try to make a new project (need NET Standard 2.0, for compatibility with 4.7.2) and change it to C#10 ``` <Project ...

How to not use DeveloperExceptionPageMiddleware

When using the new template for ASP.NET Core 6.0, which includes `var builder = WebApplication.CreateBuilder(args);` the DeveloperExceptionPageMiddleware is automatically added. I would like to not us...

ServiceStack 5.13.0 metadata and swagger-ui pages return a 500 error after .NET 6 migration

I've recently started migrating my microservices to .NET 6. I upgraded to ServiceStack 5.13.0 from 5.11.0 and I found out that both the /metadata and the /swagger-ui (from ServiceStack.Api.OpenApi pac...

15 Nov at 14:11

'IServiceCollection' does not contain a definition for 'Configuration' even though IntelliSense suggests otherwise

I am having a strange problem here. I created a Worker project in order to create a Windows Service in .NET 6 following [this documentation](https://learn.microsoft.com/en-us/dotnet/core/extensions/wi...

.NET6 and DateTime problem. Cannot write DateTime with Kind=UTC to PostgreSQL type 'timestamp without time zone'

I have common problem. > Cannot write DateTime with Kind=UTC to PostgreSQL type 'timestamp without time zone' And I want to enable Legacy Timestamp behavoour as is documented here: [https://github.com...

24 May at 13:36

How to disable Browser Link in ASP.NET Core (.NET 6, VS 2022)

I have disabled Browser Link inside Visual Studio 2022, and I have also disabled all the Hot Reload functionality. [](https://i.stack.imgur.com/0KgN3.png) [](https://i.stack.imgur.com/SmZuJ.png) Even ...

When to use Microsoft.Data.SqlClient.SqlException vs System.Data.SqlClient.SqlException?

I understand that around [2019 Microsoft created Microsoft.Data.SqlClient](https://devblogs.microsoft.com/dotnet/introducing-the-new-microsoftdatasqlclient/) as their replacement for System.Data.SqlCl...

12 Nov at 10:42

How to get ILoggerFactory in .net 6

In .Net5 ILoggerFactory is used as Configure function in Startup.cs as follows : ``` public void Configure(IApplicationBuilder app, IWebHostEnvironment env, ILoggerFactory loggerFactory) { //here ...

12 Nov at 05:38

How to fix Visual Studio 2022 Warning CA1416 "Call site reachable by all platforms" but "only supported on: 'windows'"?

So I have a C# class library project that I only intend to use on Windows. It contains some classes that use the `System.Drawing.Image` class which is only available on Windows. After upgrading to Vi...

Publish error: Found multiple publish output files with the same relative path

When I publish my ABP project I get the following error: ``` C:\Program Files\dotnet\sdk\6.0.100-rc.1.21458.32\Sdks\Microsoft.NET.Sdk\targets\Microsoft.NET.ConflictResolution.targets(112,5): error NET...

10 Nov at 20:13

Visual Studio 2022 Snippets not working for C#

I did a fresh install of Visual Studio 2022 v17.0.0 (.NET 6.0) and created a new WebAssembly project. Tried editing Counter component but none of the snippets work for C#. Typing is supposed to bring...

10 Nov at 18:57

ServiceStack OpenAPI and Postman: Get the request 'Example value' in the output to import into Postman

Is there a way to get ServiceStacks PostmanFeature to also export the 'Example value', that can be seen in the Swagger-UI, so that when I use Postman to import the spec, I also get the example value i...

How to force Visual Studio 2022 create console projects with namespaces and classes (like in old good days)?

Just switched to VS2022, created new project and see this: ``` // See https://aka.ms/new-console-template for more information Console.WriteLine("Hello, World!"); ``` Where is all other stuff? Why is...

10 Nov at 10:21

Problem Updating to .Net 6 - Encrypting String

I'm using a string Encryption/Decryption class similar to the one provided [here](https://stackoverflow.com/questions/10168240/encrypting-decrypting-a-string-in-c-sharp/10177020#10177020) as a solutio...

10 Nov at 10:6

Allow cookie on unsecure domain

I have my project running on https://localhost:5001 and I want to access it from a site running on http://localhost:3000. The site on http://localhost:3000 can make a successful authenticate request b...

10 Nov at 06:31

How to stop Visual Studio 2022 sending requests to dc.services.visualstudio.com

I installed vs 2022 today and when running my project I suddenly se all these requests firing in my web front-end ``` https://dc.services.visualstudio.com/v2/track ``` Does anyone know why this would...

How to work around ServiceStack OrmLite's limit of seven joined tables

Using ServiceStack OrmLite (5.1.0), we need to run a query that brings in 8 joined tables (it's a product table - we need to pull in the product and all related data about its category, brand, supplie...

How do you create a test server in .NET 6?

I need to write some unit tests for an ASP.NET 6 API and need to create a test server to verify authorization. However since the startup class has been removed, I don't know what I should use as the e...

6 May at 18:39

VS 2022 - Convert to file-scoped namespace in all files

I'm converting my project to .NET 6 and I want to use filescoped namespaces everywhere. But the conversion tool exists only in the editor. [](https://i.stack.imgur.com/yY5zi.png) Has anyone found out ...

Unable to negotiate with 40.74.28.9 port 22: no matching host key type found. Their offer: ssh-rsa

After start of using NixOS as a new package management system, I get the following error when using git within Azure DevOps repositories and rsa ssh key: ``` jaroslavbezdek@mac> git pull Unable to neg...

22 Feb at 14:31

How can I redirect in React Router v6?

I am trying to upgrade to React Router v6 (`react-router-dom 6.0.1`). Here is my updated code: ``` import { BrowserRouter, Navigate, Route, Routes } from 'react-router-dom'; <BrowserRouter> <Routes...

Error: [PrivateRoute] is not a <Route> component. All component children of <Routes> must be a <Route> or <React.Fragment>

I'm using React Router v6 and am creating private routes for my application. In file , I've the code ``` import React from 'react'; import {Route,Navigate} from "react-router-dom"; import {isauth} fr...

5 Jan at 02:48

Why does UserAuthExtensions.PopulateFromMap(session, jwtPayload) does not deserialize json values with escape correctly in ServiceStack.Auth?

We want to get the UserName from the ServiceStack session, but we find that the backslashes in the UserName are not deserialized as expected. The UserName has this format 'domainname\username' and ser...

Error "Error: A <Route> is only ever to be used as the child of <Routes> element"

I am trying to use routing for the first time and followed the exact instructions from [Udemy](https://en.wikipedia.org/wiki/Udemy): ### File App.js: ``` import { Route } from "react-router-dom"; i...

12 Oct at 00:32

DateTime.Now equivalent for TimeOnly and DateOnly?

.NET 6 / C# 10 introduced `TimeOnly` and `DateOnly` structs, to represent only a time and only a date respectively. The good old `DateTime` struct always had a `Now` static property which would give y...

5 Dec at 11:23