Difference between DbSet<T> property and Set<T>() function in EF Core?

Given this kind of context: ``` public class FooContext : DbContext { public FooContext(DbContextOptions<FooContext> opts) : base(opts) { } public DbSet<Bar> Bars { get; set; } } ``` ...

25 Nov at 16:26

.NET Core equivalent to Thread.Abort

## Background I have a `Service` abstraction. Each service has it own `WorkItem`. WorkItem able to start with some data. The service is limiting the excution time of `WorkItem`. Let's say that a si...

How to use componentWillMount() in React Hooks?

In the official docs of React it mentions - > If you’re familiar with React class lifecycle methods, you can think of useEffect Hook as componentDidMount, componentDidUpdate, and componentWillU...

25 Nov at 04:13

Why is 2 * (i * i) faster than 2 * i * i in Java?

The following Java program takes on average between 0.50 secs and 0.55 secs to run: ``` public static void main(String[] args) { long startTime = System.nanoTime(); int n = 0; for (int i =...

SqlExpression Creating Upper SQL Query

I have the following code: ``` SqlExpression<Postcodes> sqlExpression = db.From<Postcodes>() .Where(x => x.CityId.StartsWith(searchString)) .OrderBy(x => x.Cit...

23 Nov at 11:48

Joining same table multiple times in ServiceStack.OrmLite

When joining a table to itself, the sql statment generated does not reference the tables correctly. It's working when the "main" table is different from the joining table [https://github.com/Service...

22 Nov at 22:54

Get a list of all NuGet packages used in a solution

I'm looking for a way to get a list of all used NuGet packages in every project in a solution (and specifically the version) using command-line script and not manually in Visual Studio. Using the Pac...

28 Nov at 12:57

Nuget restore fails on Azure Devops with message "unable to load the service index for source"

I have a build for a .NET solution that is running in a private agent. The solution contains both .NET Core 2.1 and .NET Standard 2.0 projects. Some of the nuget packages installed are the following...

response: 413 Request Entity Too Large

When POSTing a request which can contain one or more files (as base64 string) I get this error response: > ERROR 2018-11-22 09:54:18,244 [13 ] Mvc.ExceptionHandling.AbpExceptionFilter - The remote ...

Textfield validation in Flutter

I am working on Flutter `TextField` widget. I want to show an error message below the `TextField` widget if the user does not fill that `TextField`. I only have to use `TextField` Widget not `TextForm...

29 Aug at 14:0

services.Configure<>() or services.AddSingleton().Get()?

As known there are two ways to get option classes in ASP.NET Core 2: 1. Using services.Configure<>() like this: services.AddOption(); services.Configure<ApplicationOptions>(Configuration.GetSection(...

22 Nov at 13:13

Comparing two equal timestamps with '>' operator returns true

I am writing a query in OrmLite like: ``` var items = db.Select<CustomTable>(query => query .Where(record => record.UpdateTimestamp > lastUpdateTime) .OrderBy(...

How to read a binary file quickly in c#? (ReadOnlySpan vs MemoryStream)

I'm trying to parse a binary file as fastest as possible. So this is what I first tried to do: ``` using (FileStream filestream = path.OpenRead()) { using (var d = new GZipStream(filestream, Compr...

27 Dec at 05:34

Independent versioning of packages in a mono-repo

We just started working on something that is maybe best described as a company-wide "open" source framework. Our main language is C# and we use Jenkins and ProGet to create and share nuget-packages. W...

21 Nov at 12:15

System.Net.Http.HttpClient Disable Caching (.Net Standart Project)

In my .NET Standard project I'm using `System.Net.Http.HttpClient`. How can I disable all caching (request caching especially) in `HttpClient`? If server sends responses with no cache header problem s...

27 Dec at 06:47

Change the IDENTITY property of a column, the column needs to be dropped and recreated

I am using This was my initial model definition. ``` public class Customer //Parent { public int Id { get; set; } public string Name { get; set; } public string Email { get; set; } ...

Getting output buffer from DBMS_OUTPUT.GET_LINES in C#

I'm trying to get the output from the `DBMS_OUTPUT.PUT_LINE()` method in my anonymous PL/SQL block through C#. I've looked at a couple of other related questions here, but am still having trouble. The...

Does creating an instance of a child class create an instance of the parent class?

I'm new to C#, and I wanted to know, that if I create an instance of a child class, does it also automatically create an instance of the parent class or what? Here is my code: ``` class Program { ...

21 Nov at 06:48

Adding backward compatibility support for an older JSON structure

I have developed an app for android which stores a serialized domain model in a JSON file to the local storage. Now the thing is, sometimes I make changes to the domain model (new features) and want t...

6 May at 18:43

How to test a className with the Jest and React testing library

I am totally new to JavaScript testing and am working in a new codebase. I would like to write a test that is checking for a className on the element. I am working with Jest and [React Testing Library...

Getting apt-get on an alpine container

I have to install a few dependencies on my docker container, I want to use python:3.6-alpine version to have it as light as possible, but apk package manager which comes with alpine is giving me troub...

20 Nov at 09:19

Relation between List<> and IEnumerable<> open type

Is there any relationship between the open types `List<>` and `IEnumerable<>`? Example: ``` var type1 = typeof(List<>); var type2 = typeof(IEnumerable<>); //return false type2.IsAssignableFrom(type...

20 Nov at 09:31

How to return a Json from a .Net Core Web API?

This is a basic question. I am new to ASP.Net Core so I created a .Net Core Web API project using the template in Visual Studio and I would like to know how to return a Json string from the Get() func...

6 May at 20:37

Running python script on C# and getting output continuously

I'm trying to run a python script from C# and I want to get the output line by line and not at the end. I feel like I'm missing something important, but don't know what. This is what I have so far: An...

7 May at 07:11

CORS error when adding Azure AD authentication

Trying to add Azure AD authentication to an Angular 7 webapp with a .net core 2.1 backend. However, I get the CORS error during the request. "Access to XMLHttpRequest at '[https://login.microsoftonl...