How to enable Nullable Reference Types feature of C# 8.0 for the whole project
According to the [C# 8 announcement video](https://youtu.be/VdC0aoa7ung?t=137) the "nullable reference types" feature can be enabled for the whole project. But how to enable it for the project? I did...
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- 31 Oct at 02:4
InvalidOperationException on File return
am running into some weird issue when i try to return a file to be downloaded, so this is my code ``` string filePath = Path.Combine(Path1, Path2, filename); return File(filePath, "audio/mp3", "myf...
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- 5 Dec at 11:22
How to create a custom Authorize attribute for multiple policies in ASP.NET CORE
I want to authorize an action controller could access by multiple policies. .e.g: ``` [Authorize([Policies.ManageAllCalculationPolicy,Policies.ManageAllPriceListPolicy]] public async Task<IActionRe...
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- 5 Dec at 08:57
Mocking OrmLiteReadApi Extension Methods
I am trying to mock the `ServiceStack.OrmLite.OrmLiteReadApi.Select()` extension method. I'm using Moq in conjunction with [Smocks](https://github.com/vanderkleij/Smocks) so I can mock extension meth...
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- 5 Dec at 06:47
ASP.NET Core 2.1 - Error Implementing MemoryCache
I was following the steps given [here](https://learn.microsoft.com/en-us/aspnet/core/performance/caching/memory?view=aspnetcore-2.2#using-imemorycache) to implement a `MemoryCache` in `ASP.NET Core` a...
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- 5 Dec at 04:25
How do I display a single image in PyTorch?
How do I display a PyTorch `Tensor` of shape `(3, 224, 224)` representing a 224x224 RGB image? Using `plt.imshow(image)` gives the error: > TypeError: Invalid dimensions for image data
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- 16 Jul at 23:21
.NET Core Exception: A circular dependency was detected for the service of type
Recently I asked a question about software architecture [Should service call another service or repository directly?](https://stackoverflow.com/questions/53564865/should-service-call-another-service-...
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- 4 Dec at 22:40
how to access Configuration in a IWebHostBuilder extension
As the topic says, I can't figure out how to access the Configuration object set up in CreateWebHostBuilder. `Code`: ``` public static IWebHostBuilder CreateWebHostBuilder(string[] args) => WebH...
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- 4 Dec at 20:9
How do I mock Directory.GetFiles?
I am trying to figure out how or if it is possible to do the following with Moq ``` public class Download { private IFoo ifoo; public Download(IFoo ifoo) { this.ifoo = ifoo; ...
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- 11 Apr at 22:33
How to Run C# ASP.NET Core 2.1 and Node.js with Different Ports in Nginx?
So I've installed Nginx, Node.js and C# ASP.NET Core 2.1 on my virtual server (virtualbox) and currently running on each separate port. Node.js running on localhost:3000. .NET Core running on localh...
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- 4 Dec at 11:18
Manually creating an HttpContext in ASP.NET Core 2.x
I'm trying to render a Razor view to a string from a Hosted Service. By using the `IRazorViewEngine` I am able to render a view to a string using something like the following: ``` _viewEngine.FindVie...
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- 4 Dec at 03:44
JSON Configuration in full .NET Framework Console App
I have a Console App targeting .NET 4.7.1. I'm trying to use .net core like configuration in my .Net Framework app. My `App.config is: ``` <configuration> <configSections> <section name="config...
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- 2 Aug at 08:1
Logging Polly wait and retry policy ASP.NET CORE
I need to log retry policy defined via Polly in APS.NET CORE My code is below showing Polly retry polly and using HttpClient. I wonder if there is a better way than what is on [stevejgordon][1]. [1]:...
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- 5 May at 18:40
Switch based on generic argument type
In C# 7.1 the below is valid code: ``` object o = new object(); switch (o) { case CustomerRequestBase c: //do something break; } ``` However, I want to use the pattern switch st...
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- 3 Feb at 15:26
"Client network socket disconnected before secure TLS connection was established", node 10
When I send request to google api (using either axios or just https), e.g. `https://www.googleapis.com/blogger/v3/blogs/2399953?key=...` I always hit the "" error. But if I send request to [https://ap...
ServiceStack Service Gateway throws AggregateException instead of WebServiceException
I'm switching to using ServiceGateway to execute requests from within my ASP.net controller. Whereas before I could just wrap the call in a Try Catch block with catch (WebServiceException ex), now the...
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- 3 Dec at 09:54
Request.HttpContext.Connection.ClientCertificate is always null
I have an ASP.Net core website deployed on Azure app service for Linux. In the controller, I am trying to get the client certificate like below: I always get `callerCertificate` as *null*. I have trie...
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- 6 Aug at 15:45
How can I do a self join in ORMLite
I'm trying to get all time entries for a specific foreman based on his supervisor's supervisor. However, I seem to be having trouble writing a self join query in ORMLite. See my data structure and c...
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- 3 Dec at 07:33
Servicestack csharp client vs Redis or both?
I want caching to maximize response times and database usage. I am trying to determine if I should use the csharp client or Redis or both in my new .netcore services API. It seems to me I should just ...
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- 2 Dec at 16:32
Why have both _ViewStart and _ViewImports? Why not one file?
In ASP.NET Core MVC we can put a file with the exact name of `_ViewStart.cshtml` inside a folder to contain the common C# code to be run before every razor view/page in that folder. Something like thi...
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- 2 Dec at 18:9
AspNet core web Api usage of ApiControllerAttribute
When I create a new controller in the API project, it generates a controller class with `[ApiController]` attribute, like this: ``` [ApiController] public class TestController : ControllerBase { //i...
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- 2 Dec at 11:22
ERROR in The Angular Compiler requires TypeScript >=3.1.1 and <3.2.0 but 3.2.1 was found instead
I am getting this error > ERROR in The Angular Compiler requires TypeScript >=3.1.1 and <3.2.0 but 3.2.1 was found instead. Seems like Typescript updated but the Angular Compiler doesn't like that. ...
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- 21 Dec at 19:53
Multiple calls to state updater from useState in component causes multiple re-renders
I'm trying React hooks for the first time and all seemed good until I realised that when I get data and update two different state variables (data and loading flag), my component (a data table) is ren...
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- 1 Dec at 21:4
Workaround for Serialize and Deserialize struct in MongoDB
In MongoDB the struct (valuetype) serialization and Deserialization is not possible, because MongoDB throws an Exception: [BsonClassMapSerializer.cs](https://github.com/mongodb/mongo-csharp-driver/blo...
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- 1 Dec at 07:20
How to translate Identity Password validation messages
So far I have been able to translate everything in an ASP.Net Core 2.1 Web Application. It has proven a little challenge, since the scaffolded Account Pages needed a little setup. But what I cannot ...
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- 2 Dec at 09:22