ExecutionTimer.cs not found when stepping into code

I am writing some tests using XUnit framework and have to use some external code referenced through a dll. When I try to step into the method call, `helper.GetEntity()`, I get the following window and...

8 Feb at 16:47

Visual Studio shows 'Configure settings to improve performance' notification for ReSharper

I am using Visual Studio Professional 2017 15.5.2 along with Resharper 2017.3.1. Every time I open VS, it throws notification > Configure settings to improve performance. I tried ignoring this messa...

Why can't I use 'as' with generic type parameter that is constrained to be an interface?

In the example below (only for demo purpose), if `T` is not constrained with class, then this conversion: ``` var ret = objectA as T; ``` ..will cause the following compile error: > The type para...

5 Jan at 07:46

What are the benefits of C# async/await in a serverless context?

For microservice functions that simply call an external service or write to a data store, is there any point to using in C#? We're writing a fair number of these in AWS Lambdas, and it's hard to det...

5 Jan at 15:25

Project builds but can't publish

I have an MVC project that for an uknown reason refuses to publish to a local folder in the PC. The log says the following: ``` 3>------ Publish started: Project: Admin, Configuration: Release Any C...

Angular2 displaying http get response in component

I am building my first angular2 app and this is my very first service call. I am using service stack API. the GET call returns a IEnumerable This call is working by itself, when plugged into my angul...

CA1001 implement IDisposable on async method

Consider following code: ``` public class Test { public async Task Do() { await Task.Delay(200); using (var disposable = new Disposable()) { disposable.Do...

Servicestack.Text ConvertTo<> tomap properties with different names or any other solution for this?

Consider I have these classes in my Api model, because other actions may need customerData with different attributes I hide base properties like this: ``` public class CustomerData { public strin...

How can I change my email adress for our ServiceStack account?

How can I change my email address for our ServiceStack account? The currently registered email address is no longer in use.

4 Jan at 06:52

POCO object array inside AppSettings.json in ASP.NET Core

This seems like it should be really simple, I have been searching SO and a lot of other places for an answer to this, everything I have found and tried does not work. I have an appsettings.json file ...

3 Jan at 18:17

Multiple types [FromBody] on same method .net core web api

I have a controller with one POST method, which will receive an xml string which can be of 2 types. Eg: I would like to be able to bind to multiple types on the same route ([HttpPost("postObj")]) So t...

Explain 2 pairs of parentheses in expression.Compile()()

Could you please explain what this strange code does? ``` expression.Compile()(); ``` Why are there 2 pairs of parentheses here? I didn't find anything in google. The full method is ``` public Val...

3 Jan at 14:51

How to use PEM certificate in Kestrel directly?

I want to use HTTPS in my ASP.Net Core 2.0 (with Kestrel web server) application. [The official documentation](https://learn.microsoft.com/en-us/aspnet/core/fundamentals/servers/kestrel?tabs=aspnetc...

(C#) What is an entity?

I try to read C# ECMA to find out what an `entity` is but failed. Is this a instance of class? Or types+members? Or any single word in the code that shows no red wavy line under it?

3 Jan at 09:9

C# intellisense not working in VS Code

I am using Visual Studio Code and I have already loaded C# OMNISharp plugin to my system and it works all fine in my existing project/solutions. However, I just created a new solution and a new proje...

16 Jan at 16:36

Unable to resolve service for type IOptions[DataAccessConfiguration] in non-ASP.NET Core app

All of our business services were previously set up to use Dependency Injection with IOptions because they were being consumed by ASP.NET Core apps, like so: NotificationDataAccess.cs: ``` public cl...

3 Jan at 01:18

MVC/JQuery validation does not accept comma as decimal separator

Even though it was suggested, that this is rather a jQuery problem than an MS ASP MVC problem, I think it is an MVC Problem. I've created the whole app in asp.net core 2.0 MVC and the error persist....

23 Feb at 22:13

Nullable Owned types in EF Core

I my case I want to store an address but it has to be optional. My mapping lookes like this: But when comitting my DbContext with Address as null iam getting this error: > InvalidOperationException: T...

5 May at 14:13

Merging web.configs between projects

I have a common web project which is used as a base for several "child" web projects. Is it possible to apply a web.config transform/merge between projects? Let's say the structure looks like this: `...

Why can't I call the UseInMemoryDatabase method on DbContextOptionsBuilder?

First off, I can't use SQL Lite. Secondly the code below is giving me: > Error CS1061 'DbContextOptionsBuilder' does not contain a definition for 'UseInMemoryDatabase' and no extension method 'UseI...

14 Jun at 23:37

How to format numbers in scientific notation with powers in superscript

I need to write values like: ``` 9.6 x 10² 9.6 x 10¹² ``` I need to know if there is a way to format numbers as above in a string.

System.* reference troubles when introducing NETStandard.Library dependency

In a large solution with 52 projects (all net462), the latest version of some of our dependencies are now only built for NET standard. Therefore they depend on the NuGet package `NETStandard.Library` ...

29 Aug at 04:26

Access Configuration/Settings on static class - Asp Core

I have 3 solutions. Project.Web, Project.Core (Business), and Project.Layer(Models). In Project.Core, I have a static file that I can call like this `Business.GetAllData();` from Project.Web.Control...

How to make a lot of concurrent web requests using async and await?

I read the how to by Microsoft at [How to: Make Multiple Web Requests in Parallel by Using async and await (C#)][1] and found: private async Task CreateMultipleTasksAsync() { // Declare an H...

Use IAmazonDynamoDB or IDynamoDBContext (both?)

I started my Visual Studio project from AWS SDK template. It uses IDynamoDBContext in the function and IAmazonDynamoDB in the tests. Everything worked to save and received documents when I received th...