Where is IDbSet<T> in entity core
[](https://i.stack.imgur.com/noyBE.png) ``` public abstract class RepositoryBase<T> : IRepository<T> where T : class { private ShopCoreDbContext dbContext; private readonly DbSet<T> dbSet; //...
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- 21 Jan at 08:35
How to allow migration for a console application?
When using asp.net core and ef core, I have no problem when invoking `add-migration init`. But when I apply the same approach on a console application below, I got an error saying: > Unable to create ...
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- 3 Oct at 20:6
Task does not contain a definition for Run method
I tried to implement multithreading in my code, 1st time. When i tried to use ``` Task T = Task.Run(() => { }); ``` Visual Studio is still underlines Run() with statement "Task does not contain a ...
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- 20 Jan at 20:57
How do you buffer requests using the in memory queue with ServiceStack?
Running SS 4.0.54 at the moment and what I want to accomplish is to provide clients a service where by they can send one way HTTP requests. The service itself is simple. For the message, open a DB c...
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- 20 Jan at 19:57
ServiceStack ServerEvents authentication configuration
I'm trying to use JWT authentication with ServiceStack ServerEvents to ensure that all users are authenticated but I can't find how to configure server events to do this. I assume that this works in t...
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- 24 Jan at 08:36
How can I implement ISerializable in .NET 4+ without violating inheritance security rules?
Background: [Noda Time](https://nodatime.org) contains many serializable structs. While I dislike binary serialization, we received many requests to support it, back in the 1.x timeline. We support it...
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- 10 Aug at 12:26
How to (should I) mock DocumentClient for DocumentDb unit testing?
From the new CosmosDb emulator I got sort of a repository to perform basic documentdb operations, this repository gets injected to other classes. I wanted to unit test a basic query. ``` public clas...
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- 24 Jan at 18:27
Efficiency of very large collections; iteration and sort
I have a csv parser that reads in 15+ million rows (with many duplicates), and once parsed into structs, need to be added to a collection. Each struct has properties Key (int), A(datetime), and B(int...
batch file from scheduled task returns code 2147942401
I am trying to schedule a job to run a batch file with Windows 10 Task Scheduler, but it results in return code 2147942401. The batch file is on remote location so I am giving the absolute path "\\se...
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- 23 Jan at 11:5
Why does pattern matching on a nullable result in syntax errors?
I like to use `pattern-matching` on a `nullable int` i.e. `int?`: ``` int t = 42; object tobj = t; if (tobj is int? i) { System.Console.WriteLine($"It is a nullable int of value {i}"); } ```...
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- 11 Apr at 16:11
Async programming and Azure functions
In the Azure functions "Performance considerations" part, [Functions Best Practices](https://learn.microsoft.com/en-us/azure/azure-functions/functions-best-practices), under "Use async code but avoid ...
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- 8 Apr at 22:24
Return "raw" json in ASP.NET Core 2.0 Web Api
The standard way AFAIK to return data in ASP.NET Core Web Api is by using `IActionResult` and providing e.g. an `OkObject` result. This works fine with objects, but what if I have obtained a JSON stri...
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- 19 Jan at 08:12
The listener for function was unable to start. Why?
I'm getting the following error when I run the azure function from visual studio. > A ScriptHost error has occurred [1/19/2018 6:40:52 AM] The listener for function 'MyFunctionName' was unable to s...
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- 22 Mar at 11:24
Send messages to Whatsapp number using PHP
I have to send messages to the customer's programatically. What are the pre requirements/needs? Do I need to convert/register my personal number to business account? Is there any provided by fo...
Unable to open the NuGet Package Manager Console
When I try to open the I get the following error. Am not sure what is preventing the Package Manager Console to open. ``` Each package is licensed to you by its owner. NuGet is not responsible for, ...
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- 6 Aug at 14:43
Error: "is not recognized as an internal or external command, operable program or batch file"
Whenever I try and run `mycommand.exe` from my Windows `cmd.exe` terminal, I get this error: > ''mycommand.exe' is not recognized as an internal or external command, operable program or batch file' I...
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- 13 Dec at 11:15
Short running background task in .NET Core
I just discovered `IHostedService` and .NET Core 2.1 `BackgroundService` class. I think idea is awesome. [Documentation](https://learn.microsoft.com/en-us/dotnet/standard/microservices-architecture/mu...
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- 18 Jan at 12:25
.NET: file uploading to server using http
I have a running-state `.php` script that hits a URL and uploads a single/multiple files `.csv` type with a unique `token` sent with them (in the body AFAIK). Below is the working snippet: ``` <?ph...
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- 28 Jan at 20:56
Changing font family of all MUI components
Can we change the font family of MUI components with less code. I have tried many ways but still, I can't able to do it. I have to change the font family individually which is really a lot of work. Ar...
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- 10 Nov at 05:24
ORMLite/Servicestack: Joining Multiple Nested Tables Together
I think this should be easy, and I'm not sure if I'm just missing something or if this feature is missing from ServiceStack/ORMLite currently. I've got a tablestructure that looks something like this:...
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- 5 May at 22:28
C# 7 ref return for reference types
I'm going through some code that uses the new features of C# 7 and uses the ref locals & returns feature. It seems pretty straight forward for `value-types` where the ref local variable gets a refere...
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- 5 Feb at 07:51
What is the best way to get the list of column names using CsvHelper?
I am trying to use CsvHelper for a project. I went through the documentation but I couldn't find a way to read all the column names with a single method. How can I get a list of all column header name...
Is there an equivalent of C#'s nameof(..) in F#?
I have the following lines of code I want to port from C# to F#: ``` private const string TypeName = nameof(MyClass); private const string MemberName = nameof(MyClass.MyMember); ``` The value of `T...
React Native: JAVA_HOME is not set and no 'java' command could be found in your PATH
I've followed step by step the official [Getting Started](https://facebook.github.io/react-native/docs/getting-started.html). I started from a clean linux install and installed everything required as ...
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- 17 Jan at 10:31
npm install ->Failed at the node-sass@4.5.0 postinstall script
I'm trying to do `npm install` and an error appears : ``` Failed at the node-sass@4.5.0 postinstall script. ``` I tried to delete `node_modules` and then reinstall it, same error appears. what wil...