How can we use HttpClient in ASP.Net Core?
I'm writing ASP.Net MVC Core 2.2 Web App. I need to get data from another web server with HTTP or HTTPS. How should I do this? I wrote code using `HttpClient`. I have a Controller that gets a messag...
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- 16 Feb at 11:6
Using multiple ServiceStack's auth providers throws error
I intend to use 2 ServiceStack's auth providers: one custom provider based on `CredentialsAuthProvider` called `remotecreds` and the built-in `JwtAuthProvider`. My AppHost registration code looks lik...
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- 25 Apr at 10:12
React Hook "useState" is called in function "app" which is neither a React function component or a custom React Hook function
I'm trying to use react hooks for a simple problem ``` const [personState,setPersonState] = useState({ DefinedObject }); ``` with following dependencies. ``` "dependencies": { "react": "^16.8....
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- 21 Feb at 11:42
What are services and why add them in ASP.NET Core?
I just started learning ASP.NET Core. Within the framework of the Web API template, there is a `Startup` class, in which the `ConfigureServices()` method is defined. Can someone explain in simple word...
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- 26 Feb at 10:4
Own UserAuthRepository without IUserAuth or IUserAuthDetails dependency/implementation
I want to use CredentialAuthProvider and JwtAuthProvider and I have my own Person class in which I want to store username and password. Most of the fields in UserAuth and UserAuthDetails are useless t...
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- 24 Apr at 22:55
How to get service from ValidationContext using Simple Injector?
In my Asp.Net MVC Core project I use SimpleInjector as IoC. I use it because of possibility of registering open generics. In some of my viewmodels I implement `IValidatableObject`. ``` public class ...
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- 25 Apr at 19:22
Android Webview cannot render the pdf sometimes and shows blank/white page instead
- - - I have made the sample on the pdf. The link for the project is shown below: [https://github.com/gopalawasthi123/PdfWebView](https://github.com/gopalawasthi123/PdfWebView) Hope this will help...
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- 3 May at 04:39
How to generate UUID version 4 using c#
My requirement is to generate version 4 UUID from C# code for google API session token and i am not sure `Guid.NewGuid()` method, Which version of GUID does it return. Like version Read google and b...
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- 24 Apr at 06:12
ReactJS - prevState in the new useState React hook?
I really like the new [React hooks](https://reactjs.org/docs/hooks-state.html) and I'm using them frequently for a project I'm working on. I'm coming across a situation where I want to use the in the...
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- 27 Sep at 10:38
Does asynchronous model really give benefits in throughput against properly configured synchronous?
Everybody knows that asynchrony gives you "better throughput", "scalability", and more efficient in terms of resources consumption. I also thought this (simplistic) way before doing an experiment bel...
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- 25 Apr at 22:47
Blazor page not rerendering after parameter updated
I started out with the new and the blazor client-side template (`3.0.0-preview4-19216-03`). To add state to the existing `Counter.razor` page, I added the following class: ``` public class GlobalCo...
.NET Core Difference between Hosted Service and Singleton Service
From .NET Core 2.1 onward, we can now run background tasks with [hosted service](https://learn.microsoft.com/en-us/aspnet/core/fundamentals/host/hosted-services?view=aspnetcore-2.2). I believe we co...
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- 22 Apr at 15:16
Blazor binding value to "input date" in one-way
Since Blazor doesn't support stopping event propagation I need one-way binding for an input element with `type="date"` and with an `onchange` event handler. Something like this: ``` <input type="da...
Fody is only supported on MSBuild 16 and above. Current version: 15
Visual Studio 2017 let me know there was an upgrade to Fody version 5 this morning. I accepted and did a NuGet package update of both Fody and PropertyChanged.Fody. Now, my project/solution will no ...
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- 22 Apr at 14:2
SocketException: OS Error: Connection refused, errno = 111 in flutter using django backend
I m building a flutter app with django rest-framework. The registration api is working fine in Postman but after some successful registration from the flutter app it is showing the above error. The re...
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- 21 Apr at 20:15
ACL-based API Permissions in Servicestack
I am coding a service application for my company and since fixed roles are not suitable in my case I want to establish ACL based access to my API services. The model and the database side are not my ...
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- 21 Apr at 12:22
Could not get conversion result header. Data transfer error. Data transmission error 109
I am using ["SelectPdf Html To Pdf Converter for .NET – Community Edition"](https://selectpdf.com/community-edition/) to generate pdf files. Everything is working fine on the Live server. Suddenly err...
What does the "as" keyword do?
``` if (process.env.NODE_ENV !== 'production') { (WithUser as any).displayName = wrapDisplayName(Component, 'withUser'); } ``` I'm not even sure if `as` is a keyword, but anyway, what does it do ...
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- 27 Jan at 15:18
Webp image not showing up on google Chrome via ASP.NET mvc
I have been trying to use Webp images on my website however they would show up as broken images on all browsers. I have tried a solution from [dejanstojanovic](https://dejanstojanovic.net/aspnet/201...
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- 21 Apr at 09:38
EF core DbContext in a multithreaded API application
> How can I use Entity Framework in a multithreaded .NET Core API application even though DbContext is not threadsafe? ### Context I am working on a .NET Core API app exposing several RESTful inte...
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- 20 Jun at 09:12
ASP.NET Core 3 API Ignores Authorize Attribute with Bearertoken
I´m working on a ASP.NET Core Web API. I´m using the newest version 3.0.0-preview4.19216.2. I have the problem, that my API-Controller ignores the Authorize-Attribute but on another controller the At...
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- 3 Jun at 16:41
Blazor component : refresh parent when model is updated from child component
I'm using Server-side Blazor components in ASP.NET Core 3 preview 4. I have a parent component, and child components, using the same shared model, like this : Model : ``` public class CountModel { ...
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- 22 Apr at 13:47
how to make an OPTIONS request with HttpClient
How do I send an OPTIONS request with System.Net.Http.HttpClient exposed methods for HttpClient - DeleteAsync - GetAsync - PostAsync - PutAsync - few others as well..... I was expecting a OptionsAsync
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- 4 Jun at 03:39
Deconstruction is ambiguous
I have a vector class with two deconstruction methods as follows: ``` public readonly struct Vector2 { public readonly double X, Y; ... public void Deconstruct( out double x, out double...
React Native Error: ENOSPC: System limit for number of file watchers reached
I have setup a new blank react native app. After installing few node modules I got this error. ``` Running application on PGN518. internal/fs/watchers.js:173 throw error; ^ Error: ENOSPC: Syst...
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- 5 Oct at 12:28