Using Polly for a retry attempt from an async function

I'm trying to retry a failed operation 3 times. I'm using Polly for a retry operation. I want to get the exception in case the retry operation fails and retry again 2 times and so on. ``` return await...

16 Apr at 13:19

How to Rename Files and Folder in .rar .7z, .tar, .zip using C#

I have a compressed file .rar .7z, .tar and .zip and I want to rename physical file name available in above compressed archived using C#. I have tried this using a sharpcompress library but I can't f...

23 Dec at 07:2

How can I parse JSON with comments using System.Text.Json?

I have some JSON that includes comments (even though comments aren't strictly allowed in the [JSON spec](https://www.json.org/json-en.html).) How can I parse this JSON using `System.Text.Json`? The ...

22 Dec at 22:18

Select Control Set Initial Value

We know that with `InputSelect` we cannot use both @bind-value and @onchange... But if we use the latter (with `select` instead `InputSelect`), how can we set a initial value different from the fir...

2 May at 11:1

Create empty IAsyncEnumerable

I have an interface which is written like this: ``` public interface IItemRetriever { public IAsyncEnumerable<string> GetItemsAsync(); } ``` I want to write an empty implementation that returns...

23 Dec at 06:20

ERROR: Could not build wheels for cryptography which use PEP 517 and cannot be installed directly

I get an error when pip builds wheels for the cryptography package. Error: [](https://i.stack.imgur.com/2F20z.png) ``` LINK : fatal error LNK1181: cannot open input file 'libssl.lib' error: comma...

ServiceStack Http Utils Set Cookie

I am trying to use ServiceStacks Http Utils, but for some reason I can't seem to be able to set the JSession cookie I received from logging in via basic auth. This is what I've tried so far... respo...

22 Dec at 00:3

Is there a definitive naming convention for methods returning IAsyncEnumerable?

After C# 5 introduced the `async` and `await` model for asynchronous programming, the C# community arrived at a naming convention to add an "Async" suffix to methods returning an awaitable type, like ...

22 Dec at 06:51

Using Linq's Where/Select to filter out null and convert the type to non-nullable cannot be made into an extension method

Suppose I have ``` List<MyObject?> list = ...; ``` I want to turn it into `List<MyObject>`, but I have not been able to drop the nullable reference. Below is an MCVE. In my project I have nullable...

How to handle both a single item and an array for the same property using System.Text.Json?

I am trying to deserialize some JSON that contains a value that is sometimes an array, and sometimes a single item. How can I do this with [System.Text.Json](https://learn.microsoft.com/en-us/dotnet/...

20 Dec at 19:59

EF Core 3 DbQuery equivalent functionality

In ef core 2.2 I have used DbQuery to map raw sql results to object as following: ``` public partial class AppDbContext{ public DbQuery<SimpleQueryModel> SimpleQM {get;set;} } ``` and then ```...

Best practice for using Nullable Reference Types for DTOs

I have a DTO which is populated by reading from a DynamoDB table. Say it looks like this currently: ``` public class Item { public string Id { get; set; } // PK so technically cannot be null ...

Importing .proto files from another project

I have several contract projects that contains different protobuf files, but some of the message types have the same message type like I have now created a shared project and added an Address.proto fi...

5 May at 12:47

How do I Use ConfigurationBuilder in .net core 3.1 Winforms?

I have the following working in a .net core 2.1 aspnet application ``` using System; using System.IO; using Microsoft.AspNetCore; using Microsoft.AspNetCore.Hosting; using Microsoft.Extensions.Config...

20 Dec at 04:18

Entity Framework Core 3.0 - Lambda expression used inside Include is not valid

Here below I am using lambda expression in LINQ Includes for 1 level, to fetch a list of customers using three entities, the main one is for all Customers and has only 2 properties Id and bool: IsComp...

vcruntime140.dll 14.0 not compatible with PHP build

I have downloaded on a Windows Server 2016 machine. I have also downloaded and installed `vc_redist.x86.exe`. When I try and run `php-cgi` from the command prompt I get the following error: > PHP War...

27 Feb at 09:40

How to add all missing usings at once with Visual Studio 2019 and C#

When I write C#, I sometimes have 3-4 missing usings which I can add with the tooltip window -> add missing using, or doing ctrl + . On the line where a missing using is present. Doing this 3-4 times...

19 Dec at 17:11

Attempted to update or delete an entity that does not exist in the store

I am having a problem with EF Core 3.x and One-To-Many navigation properties which I did not have in previous versions. Consider the following code: In previous EF version, the following could be done...

What makes ValueTuple covariant?

This compiles correctly in C# 7.3 (Framework 4.8): ``` (string, string) s = ("a", "b"); (object, string) o = s; ``` I know that this is syntactic sugar for the following, which also compiles correc...

19 Dec at 14:7

System.MethodAccessException: 'Attempt by method 'Microsoft.Extensions.Logging.Configuration issue

In .NETCore, While running the application in `Program.cs` file at `CreateWebHostBuilder(args).Build().Run();` I'm getting the Exception > "System.MethodAccessException: 'Attempt by method 'Micr...

19 Dec at 07:2

How Do You Access the `applicationUrl` Property Found in launchSettings.json from Asp.NET Core 3.1 Startup class?

I am currently creating an Asp.NET Core 3.1 API Application. In it, I have a `launchSettings.json` that looks like the following: ``` { "iisSettings": { "windowsAuthentication": false, "an...

C# 8 base interface's default method invocation workaround

According to [https://learn.microsoft.com/en-us/dotnet/csharp/language-reference/proposals/csharp-8.0/default-interface-methods](https://learn.microsoft.com/en-us/dotnet/csharp/language-reference/prop...

18 Dec at 18:20

editorconfig - how to specify underscore prefix for readonly private fields?

I haven't been able to find anything on this online. Is there any way to specify that an underscore prefix for readonly private fields should be added? Ever since I started using an `editorconfig` f...

Test Explorer (VS) shows '<Unknown project>'

Everthing below is made in VS2019, using .NET Framework 4.7 and NUnit + NUnit3TestAdapter I created an assembly called Exitus.Tests, and added a few unit tests. However, do to some issues with Nuget,...

18 Dec at 12:24

Allow anonymouos access to healthcheck endpoint when authentication fallback policy is set in ASP.NET Core 3

asp.net core 3 allows to set to make the endpoints secure by default: ``` services.AddAuthorization(options => { options.FallbackPolicy = new AuthorizationPolicyBuilder()...