JsonServiceClient C# In Excel COM Add-In

We develop an Excel COM Add-In using add-in express. We have been using this add-in past 6 months and we don't have any issue. Past few weeks we start facing an issue in the add-in and after debugging...

19 Apr at 19:56

EF Core No tracking and Add() or Update()

I'm trying to make my DbContext to work without tracking. Also, after every Add(..) or Update(..) I remove the tracking of the new entity: The problem arises if I add (or update) a new entity that has...

java.lang.NoClassDefFoundError: Could not initialize class org.codehaus.groovy.vmplugin.v7.Java7

I am getting this exception `java.lang.NoClassDefFoundError: Could not initialize class org.codehaus.groovy.vmplugin.v7.Java7 and java.lang.NoClassDefFoundError: Could not initialize class org.codeha...

28 Aug at 11:56

Add JSON string directly to Azure Blob Storage Container using C#

I am trying to load a JSON string (serialized with Newtonsoft.Json) I am serializing object in runtime using JsonConvert.SerializeObject(obj,settings) which returns a string. Following Microsoft do...

17 Apr at 20:53

How to add a WCF service reference in a .NET Core 3.1 application?

I'm attempting to add a WCF service reference to a .Net Core 3.1 web API. I'm using Visual Studio 2019 in admin mode. I get the following error: ``` Importing web service metadata ... Number of servi...

17 Apr at 17:44

ServiceStack ServiceClient stores wrong cookies after authentication

i have a strange problem with Servicestack Authentication. I've developed an Asp .Net Core web app (.net core 3.1) in which is implemented a servicestack authentication with credentials auth provider...

How to map fallback in ASP .NET Core Web API so that Blazor WASM app only intercepts requests that are not to the API

I have a Blazor WebAssembly solution with a client project, server project and shared project, based on the default solution template from Microsoft. I'm editing and debugging in Visual Studio 2019 pr...

4 Nov at 19:0

ServiceStack service unable to return dynamic response object, both as Json and XML

I've built a service, that combines and returns a set of dynamic json data from an external service. Returning the data as json is fine - but XML... I've tried returning it as raw XML in a string-pro...

16 Apr at 17:10

Nullable reference types and constructor warnings

I'm trying to embrace C# 8's nullable references types in my project and make it smoothly work with EF Core. Following [this guide](https://learn.microsoft.com/en-us/ef/core/miscellaneous/nullable-re...

Angular 9 - NGCC fails with an unhandled exception

Building the application after having upgraded dependencies to Angular 9 (and having performed the necessary code changes) throws an error: > Compiling @angular/animations : es2015 as esm2015 Compil...

How to hide a property just in post request description of swagger using swashbuckle?

I am new to ASP.NET Core and this question looks simple but I couldn't find a proper solution online. So here's the problem. This is the structure of the class that I am using. ``` public class Alert...

Why does ServiceStack burden the DTOs with routing concerns?

I'm learning ServiceStack, and from reading [this page](https://docs.servicestack.net/your-first-webservice-explained), a couple of things aren't clear to me. So, considering this DTO pair: ``` [Rou...

14 Apr at 12:57

ServerStack TypeScript JsonServiceClient COR Issue

I am using ServiceStack TypeScript Client "JsonServiceClient" in my app. On a button click, I am writing these lines of code. ``` let client:JsonServiceClient = new JsonServiceClient('http://ams-devi...

13 Apr at 21:21

Save a session/state data between multiple requests in Service Stack framework

I have a request that is calling a third party service with multiple parameters. I would like to save one of the parameter value in the session for later use once the third party responds. That third...

13 Apr at 15:34

Jwt Bearer and dependency injection

I am trying to configure my Jwt Bearer issuer key but, in production usually, I use Azure Key Vault wrapped by a `KeyManager`. The `KeyManager` class is configured in Dependency Injection but, in `Co...

How to block code flow until an event is fired in C#

I have a grid with a button in a WPF application. When the user clicks the button, a method in a utility class is executed which forces the application to receive a click on the grid. The code flow mu...

Laravel PackageManifest.php: Undefined index: name

I'm just trying to deploy my application and I just ran composer update on my server and I got the following error: In PackageManifest.php line 122: Undefined index: name How can I fix this issue? ...

12 Apr at 20:52

Does anyone know of a ServiceStack.Text branch that can Serialize private members?

I have a set of classes that act like Enumerators where there are two tiers to represent classifications. Where the Key and Numeral are never exposed publicly so as to force any implementation to work...

11 Apr at 19:24

ASP.NET Core Testing - No method 'public static IHostBuilder CreateHostBuilder(string[] args)

I'm trying to setup my application in tests and use in `Startup's` `Configure` method `context.Database.EnsureCreated()` and expecting `Sqlite` file appear in `Test's` bin folder Here's my code: ```...

11 Apr at 15:34

Should I always use async/await in ASP.NET Core API Controller

As an example I have an `ASP.NET Core API controller` fetching some data from a service and `2` possible ways to implement the controller method: With async/await: ``` [HttpGet] public async Task<IA...

11 Apr at 09:50

using statement in C# 8 without a variable

Is there a mechanism for the new c# 8 `using` statement to work without a local variable? Given `ScopeSomething()` returns a `IDisposable` (or `null`)... Previously: ``` using (ScopeSomething()) { ...

11 Apr at 02:13

(C#) How to make a dark mode theme in windows forms (separate form as select theme menu)

I want to know how I can code a dark theme radio button that turns my entire C# windows form dark (including menus etc) I made a separate settings form and I want to have radio buttons for themes tha...

10 Apr at 17:24

Visual Studio - Debug Executable Specified in the Debug Profile does not Exist

I am trying to run a simple HelloWorld C# .NET Core Console Application and I get this error. Being fairly new, I couldn't resolve it upon trying certain things mentioned in another answer. Please gui...

10 Aug at 10:35

Status Forbidden -When Sending Email with Sendgrid

i am trying to send email through sendgrid. But every time it return status Forbidden. ``` public Task SendEmailAsync(string email, string subject, string message) { var apiKey = Environm...

10 Apr at 11:56

Property 'JsonResult.SerializerSettings' must be an instance of type 'System.Text.Json.JsonSerializerOptions'

I am developing a page that shows the webgrid of all values of Leave Type Option (which is a model containing id, LeaveType and status). In my controller, I have written something below. After I run t...