tagged [.net-core-3.0]
Is there a robust way to register dependencies in ASP.NET Core 3.1 beside adding everything into Startup class?
Is there a robust way to register dependencies in ASP.NET Core 3.1 beside adding everything into Startup class? I have an ASP.NET Core 3.1 project. Typically, I register any dependency using the `Conf...
- Modified
- 19 Feb at 23:7
How to change the default port in asp.net Core 3 or Net Core 5
How to change the default port in asp.net Core 3 or Net Core 5 when I am in debug, to change the default port, I modify the launchSettings.json file, and change the port ``` "WebApplication1": { "c...
- Modified
- 27 Aug at 12:8
'ConfigureServices returning a System.IServiceProvider isn't supported.'
'ConfigureServices returning a System.IServiceProvider isn't supported.' I need ti use this `AutoFac` in ASP core 3.0 When I use this code in startu up: It show me this error: > 'ConfigureServices ret...
- Modified
- 27 Sep at 11:31
How to use class fields with System.Text.Json.JsonSerializer?
How to use class fields with System.Text.Json.JsonSerializer? I recently upgraded a solution to be all .NET Core 3 and I have a class that requires the class variables to be fields. This is a problem ...
- Modified
- 25 Nov at 23:24
Asp.Net Core 3.0 CreatedAtAction returns "no route matches the supplied values" when Action name ends with "Async"
Asp.Net Core 3.0 CreatedAtAction returns "no route matches the supplied values" when Action name ends with "Async" I had a strange problem with CreatedAtAction, if my method name ends with "Async" key...
- Modified
- 12 Dec at 11:53
.NET Core 3.0: Razor views don't automatically recompile on change
.NET Core 3.0: Razor views don't automatically recompile on change According to [the documentation](https://learn.microsoft.com/en-us/aspnet/core/mvc/views/view-compilation?view=aspnetcore-3.0), Razor...
- Modified
- 6 Jun at 11:16
Can you use IAsyncEnumerable in Razor pages to progressively display markup?
Can you use IAsyncEnumerable in Razor pages to progressively display markup? I've been playing around with Blazor and the IAsyncEnumerable feature in C# 8.0. Is it possible to use IAsyncEnumerable and...
- Modified
- 10 Sep at 12:22
Using System.Windows.Forms classes in a .net core 3.0 preview9 project
Using System.Windows.Forms classes in a .net core 3.0 preview9 project How can we use classes like [Screen](https://learn.microsoft.com/de-de/dotnet/api/system.windows.forms.screen?view=netcore-3.0) i...
- Modified
- 25 Sep at 14:42
Accessing the SerialPort class using .Net Core 3.0
Accessing the SerialPort class using .Net Core 3.0 I'm starting a new .NET Core 3.0 project in which I need to access the System.IO.Ports.SerialPort class. The documentation I'm reading on the class s...
- Modified
- 6 Oct at 15:7
Is there a System.Text.Json's substitute for Json.NET's JsonProperty(Order)?
Is there a System.Text.Json's substitute for Json.NET's JsonProperty(Order)? Since `System.Text.Json` is now JSON lib for [.NET Core 3.0](https://learn.microsoft.com/en-us/dotnet/api/system.text.json?...
- Modified
- 9 Dec at 14:32
How to run multiple BackgroundService parallel in .net core 3.0?
How to run multiple BackgroundService parallel in .net core 3.0? How is it possible to run multiple IHostedServices in parallel? I use the WorkerService in .Net Core 3.0 and want both services to run ...
- Modified
- 14 Oct at 09:23
The JSON value could not be converted to System.Nullable[System.Int32]
The JSON value could not be converted to System.Nullable[System.Int32] I updated an ASP.NET Core 2.2 API to ASP.NET Core 3.0 and I am using System.Json: I then tried to post JSON data using Angular 8,...
- Modified
- 15 Nov at 22:19
Relationship between C# 8.0, NET Core 3.0 and Visual Studio
Relationship between C# 8.0, NET Core 3.0 and Visual Studio The article [Building C# 8.0](https://blogs.msdn.microsoft.com/dotnet/2018/11/12/building-c-8-0/) states > The current plan is that C# 8.0 w...
- Modified
- 14 Jul at 03:15
System.Text.Json.JsonElement ToObject workaround
System.Text.Json.JsonElement ToObject workaround I want to know the equivalent of the `ToObject()` method in [Json.NET](https://www.newtonsoft.com/json/help/html/Introduction.htm) for . Using Json.NET...
- Modified
- 10 Aug at 14:32
How to add property in existing json using System.Text.Json library?
How to add property in existing json using System.Text.Json library? ``` { "TestData":{ "Year__of__Account":"2019", "Tax___x0025_":"0.06", "Buildings__1":"1000", "Cont...
- Modified
- 25 Nov at 23:56
add all the required services by calling 'IServiceCollection.AddHealthChecks'
add all the required services by calling 'IServiceCollection.AddHealthChecks' I am using ASP.NET Core 3, .NET Core 3.0.100, Visual Studio 2019 Community. I follow this guide [https://learn.microsoft.c...
- Modified
- 23 Oct at 00:39
System.InvalidCastException: 'The SqlParameterCollection only accepts non-null SqlParameter type objects, not SqlParameter objects.'
System.InvalidCastException: 'The SqlParameterCollection only accepts non-null SqlParameter type objects, not SqlParameter objects.' I migrated my project from ASP.NET Core 2.2 to ASP.NET Core 3.0. No...
- Modified
- 13 Apr at 01:16
Cannot add appsettings.json inside WPF project .net core 3.0
Cannot add appsettings.json inside WPF project .net core 3.0 I am creating a WPF project using .net Core 3.0, and I am having trouble adding the item `appsettings.json` file to my project which is to ...
- Modified
- 5 Apr at 11:22
Use Visual Studio 2017 with .Net Core SDK 3.0
Use Visual Studio 2017 with .Net Core SDK 3.0 How Can I open `.Net Core 3.0` project in Visual Studio 2017? I have downloaded the .NET Core 3.0 SDK from [dotnet.microsoft.com](https://dotnet.microsoft...
- Modified
- 3 Apr at 04:34
Converting newtonsoft code to System.Text.Json in .net core 3. what's equivalent of JObject.Parse and JsonProperty
Converting newtonsoft code to System.Text.Json in .net core 3. what's equivalent of JObject.Parse and JsonProperty I am converting my newtonsoft implementation to new JSON library in .net core 3.0. I ...
- Modified
- 25 Nov at 18:56
What is the difference between Host and WebHost class in asp.net core
What is the difference between Host and WebHost class in asp.net core I was trying to migrate the my application from asp.net core 2.1 to 3.0 and there come a first suggested change in program.cs for ...
- Modified
- 15 Jan at 10:24
.NET Core 3.0 migration error IAsyncEnumerable<T> exists in both System.Interactive.Async and System.Runtime
.NET Core 3.0 migration error IAsyncEnumerable exists in both System.Interactive.Async and System.Runtime I am trying to migrate a project from .net core 2.2 to 3.0. I am getting the error: > Error CS...
- Modified
- 29 Oct at 08:26
How to define an endpoint route to multiple areas
How to define an endpoint route to multiple areas I am trying to define a `MapAreaControllerRoute()` that routes to multiple Areas. In ASP.NET Core 3.0, however, there is the `areaName:` parameter tha...
- Modified
- 12 Apr at 03:21
How to replace AddJwtBearer extension in .NET Core 3.0
How to replace AddJwtBearer extension in .NET Core 3.0 I have the following code which compiles and works in .NET Core 2.2: ``` byte[] key = Encoding.ASCII.GetBytes(Constants.JWT_SECRET); services...
- Modified
- 28 Oct at 14:56
How to resolve HostedService in Controller
How to resolve HostedService in Controller I am trying to add a Background Timer in ASP.NET Core 3.0, which periodically executes a task. Google led me to [this](https://learn.microsoft.com/en-us/aspn...
- Modified
- 15 Oct at 15:10