Docker - The framework microsoft.AspNetCore.App, version '3.1'0 was not found on build

I'm attempting to learn about docker and how to containerize a .NET core Web app. I've been following the tutorial below and have made good progress except when I actually run my project. ``` https:/...

Strongly Typed Ids in Entity Framework Core

I'm trying to have a strongly typed `Id` class, which now holds 'long' internally. Implementation below. The problem I'm having the using this in my entities is that gives me a message that the prope...

.net core 3.1: 'IAsyncEnumerable<string>' does not contain a definition for 'GetAwaiter'

I have a .net core 3.1 console app. I have a method with the following signature: ``` public async IAsyncEnumerable<string> GetFilePathsFromRelativePathAsync(string relativePath) ``` If I call it:...

Private methods vs local functions

To my understanding, both local functions and private methods serve merely as implementation details - helpers for public methods. Why would I want to choose one over the other? When using a private ...

9 Feb at 14:54

Ajax passing empty value but Controller get null in ASP.NET MVC

I'm working with `ASP.NET MVC` and have a problem with the value sent from `Ajax` to my controller. Let's say I have `SampleViewModel` like this: ``` public class SampleViewModel { private strin...

15 Feb at 05:6

JsonSerializer.Deserialize fails

Consider the code... ``` using System; using System.Text.Json; public class Program { public static void Main() { int id = 9; string str = "{\"id\": " + id + "}"; var...

How can I POST a file using ServiceStack IRestGateway

I'm currently accessing a 3rd party restAPI using ServiceStacks IRestGateway with my own backing class. It's basically the same as the ServiceStack.Stripe [gateway](https://github.com/ServiceStack/Str...

7 Feb at 16:21

How AutoQuery Parameters work when supplied

I've been reviewing servicestack and the documentation. In regards to autoquery documentation the pre-autoquery and post auto query design is shown below. Where the DTO does not include the paramete...

7 Feb at 16:18

Is there a thing like HTTPContextEnricher thats works with Servicestack and Serilog

I'm using Servicestack (.Core) and it's connection to Serilog. Is there a way to automatically enrich all Log-Entries with things like SessionId, UserId, etc.. The serilog-enrichers will not work due ...

7 Feb at 15:36

How to seed in Entity Framework Core 3.0?

I am trying seed the database with some data, using ASP.NET CORE 3.0 and EF Core. I've created my DbContext and according to [documentation](https://learn.microsoft.com/en-us/ef/core/modeling/data-se...

Where contains throw Value can't be null

I'm stuck and don't know why this issue occurs. Normally we do like this: ``` var q = await OrmDb.SelectAsync<OrmProductSerial>(p => p.SerialNumber.Contains(reqSearch) ); ``` In this case I need ...

ServiceStack License not found when using NUnit 3 through Console Runner in TeamCity

I am using a valid license key. But I keep getting this error: ``` ServiceStack.LicenseException : The free-quota limit on '10 ServiceStack Operations' has been reached. Please see https://servicest...

Component attributes do not support complex content (mixed C# and markup)

I am trying to use a Razor argument and pass it into Blazor for further processing, but I get this error message "Component attributes do not support complex content (mixed C# and markup)" on the @onc...

6 Feb at 02:10

408 status code from Cosmos DB using SDK v3

I have an API (.NET Core 2.2) which retrieves documents from Cosmos DB using SDK v3.5.0. Currently some requests are throwing an exception due to timeouts on requests to Cosmos DB - the response is [4...

.Net core 3.x Keyless Entity Types avoid table creation

I need to execute a complex sql query in entity framework core 3.1.1, on researching i found out that keyless entity types is the way to go in code first approach. I see lot of documents for dbquery b...

Building ASP.NET-Core 3.1 with .NET-Standard 2.0 projects leads to conflicting Microsoft.AspNetCore.Mvc.Analyzers assemblies

I'm trying to build an `ASP.NET-Core 3.1` (`netcoreapp3.1`) application which has a dependency on a NuGet library that is `.NET-Standard 2.0` which uses MSBuild SDK `"Microsoft.NET.Sdk.Razor"`. This ...

How can I generate documentation for C# that outputs as Markdown for an Azure DevOps Wiki?

I've been using DocFX to generate code documentation for C# and for the most part found a lot of success with it. The articles are flexible and I really like that I can use markdown to maintain them w...

ServiceStack SSE OnJoin and OnLeave callbacks aren't being triggered after calling SubscribeToChannelsAsync and UnsubscribeFromChannelsAsync

I have a single ServerEventsClient object that I use to dynamically subscribe and unsubscribe from channels as needed. I have some channels that are always open and that I pass in the constructor. I r...

4 Feb at 14:1

What's the real difference between Alternate Key and HasIndex with uniqueness in EF core?

I'm intrested in what is the real difference between this ``` e.HasIndex(c => new { c.UserId, c.ApplicationId, c.Value }).IsUnique(); ``` and this ``` e.HasAlternateKey(c => new { c.UserId, c.Appl...

IdentityBuilder does not contain a definition for 'AddEntityFrameworkStores

I am using .netcore 3.1. While using the following code: ``` using System; using System.Collections.Generic; using System.Linq; using System.Threading.Tasks; using Microsoft.AspNetCore.Builder; using ...

2 Oct at 21:45

How to set value with NX option and expire using ServiceStack.Redis?

I'm using ServiceStack.Redis to execute commands on REDIS. I would like to simply set value with expire and NX option (which is : set only if not exists). The problem is that ServiceStack.Redis cl...

Add optional content in dotnet new templates in non c# files

I want to modify the content of README.md based on what the developer selects when creating a c# solution from the template. How do I do it? I know that you can define ``` "symbols": { "EnableC...

4 Feb at 11:15

Running multiple ASP.NET Core (3.1x/Latest) websites on port 80 with Kestrel

I'm using (ASP).NET Core (3.1x), C#, Blazor and Microsoft Kestrel Web-server and I'm wondering if I can run 2 or 3 different websites (domain names) on one Kestrel instance and on port 80. I would rea...

Why is "using System;" not considered bad practice?

I have a C++ background and I do fully understand and agree with the answers to this question: [Why is “using namespace std;” considered bad practice?](https://stackoverflow.com/q/1452721/9883438) S...

5 Feb at 09:43

Hosting ASP.NET Core API in a Windows Forms Application

Background: I am working on a project that involves a WinForms app. The client wants to expose a local-only HTTP server to allow other apps to trigger functionality on a running instance of the WinFor...