How to resolve un-registered type using standard MVC Core dependency injection

Is there a way to get `IServiceProvider.GetService<T>` to return an instance even if `T` is not explicitly registered with the container? If I know that `T` has dependencies I'd like them to be injec...

Read Json data from text file C#

I have a text file with below format data ``` [ { "SponsorID": 1, "FirstBAID": 7395836 }, { "SponsorID": 2, "FirstBAID": 3509279, "SecondBAID": 29...

4 Jul at 08:15

Is there any way to debug chrome in any IOS device

Is there any way to debug chrome browser on IOS device? If there is no way, how i can approach to bug in chrome on ios? Searched the web and didn't find sufficient answer.

How to log state transitions in Stateless (.NET state machine library)

I would like to have a log in database of state transitions of my workflow. Where is the best place to trigger logging with [Stateless](https://github.com/dotnet-state-machine/stateless)? Should it b...

4 Jul at 07:14

Converting bool expression to char in c#

I passed .NET quiz, when I met a question like below one. ``` Char ch = Convert.ToChar('a' | 'e' | 'c' | 'a'); ``` In console we can see that output for `ch` variable is `g`. Can someone describe ...

4 Jul at 06:53

How can I ensure that appsettings.dev.json gets copied to the output folder?

I have three configuration files, one for each environment: 1. appsettings.json -> production 2. appsettings.dev.json -> development 3. appsettings.stg.json -> staging If I set to , I get a runt...

Javascript Map Array Last Item

I have this: ``` map = ranks.map((row, r) => ( row.map((rank, i) => { return [element(r, i, state, rank, toggled, onClick)]; }) )); ``` It maps through a 2-dimentional array. After each row...

Servicestack RedisClient staying connected after being disposed

I am using servicestack for my redisclient in my class. I have one redis client as the following: ``` public class MySuperClass{ .... RedisClient client = new RedisClient("localhost",...

4 Jul at 02:46

Angular 2 Date Input not binding to date value

trying to get a form set up but for some reason, the Date input in my html is not binding to the object's date value, despite using [(ngModel)] html: ``` <input type='date' #myDate [(ngModel)]='demo...

The program '[13492] dotnet.exe' has exited with code -2147450749

When trying to build and run a hello world dotnetcore console app the app closes without any exceptions. On the debug output I see the following. > The program '[13492] dotnet.exe' has exited with co...

3 Jul at 23:30

Injecting Service in Middleware in ASP.NET Core

I want to inject a service based on the HTTP header value. So I have 2 classes - DbDataProvider and InMemDataProvider, both are implemented from IDataProvider. Whenever an API call is made, a header i...

Group dataframe and get sum AND count?

I have a dataframe that looks like this: ``` Company Name Organisation Name Amount 10118 Vifor Pharma UK Ltd Welsh Assoc for Gastro & Endo 2700.00 10119 Vifor Pharma UK Ltd Welsh ...

"No ESLint configuration found" error

Recently, we've upgraded to [ESLint 3.0.0](http://eslint.org/blog/2016/07/eslint-v3.0.0-released) and started to receive the following message running the `grunt eslint` task: ``` > $ grunt eslint Ru...

How to select specific columns in laravel eloquent

lets say I have 7 columns in table, and I want to select only two of them, something like this ``` SELECT `name`,`surname` FROM `table` WHERE `id` = '1'; ``` In laravel eloquent model it may looks ...

28 Apr at 16:39

static property in c# 6

I'm writing a small code to more understand about `property` and `static property`. Like these: ``` class UserIdentity { public static IDictionary<string, DateTime> OnlineUsers { get; set; } ...

3 Jul at 14:37

HttpContext.Current is null when unit test

I have following web Api controller method. When I run this code through web, `HttpContext.Current` is `never null` and give desired value. ``` public override void Post([FromBody]TestDTO model) { ...

3 Jul at 14:26

Cross-platform file name handling in .NET Core

How to handle file name in `System.IO` classes in a cross-platform manner to make it work on Windows and Linux? For example, I write this code that works perfectly on Windows, however it doesn't crea...

1 Mar at 17:1

C# bool is atomic, why is volatile valid

In , we know that a `bool` is atomic - then why is it valid to mark it as `volatile`? what is the difference and what is a good (or even practical) use-case for one versus the other? ``` bool _isPend...

C#: ASP.NET WebApi default route to index.html

I am trying to create an Asp.net WebApi / Single Page Application. I would like my server to dispense index.html if no route is given. I would like it to use a controller when one is specified in the ...

16 May at 18:42

Python regex match space only

In python3, how do I match exactly whitespace character and not newline \n or tab \t? I've seen the `\s+[^\n]` answer from [Regex match space not \n](https://stackoverflow.com/questions/14190038/re...

23 May at 11:58

ASP.NET Core EF Add-Migration command not working

Following this [Microsoft Tutorial](https://docs.efproject.net/en/latest/platforms/aspnetcore/new-db.html#create-your-database) when I run the `PM> Add-Migration MyFirstMigration` command in VS2015 pr...

one of the parameters of a binary operator must be the containing type c#

``` public static int[,] operator *(int[,] arr1, int[,] arr2) { int sum; int[,] res = new int[arr1.GetLength(0), arr2.GetLength(1)]; for (int i = 0; i < arr1.GetLength(0); ...

What is the purpose of casting into "object" type?

I have found code on a website which is as follows. ``` string a = "xx"; string b = "xx"; string c = "x"; string d = String.Intern(c + c); Console.WriteLine((object)a == (object)b); // True Con...

How to set the content-type of request header when using Fetch APi

I am using npm 'isomorphic-fetch' to send requests. The problem I am experiencing is I am unable to set the content-type of the request header. I set a content type of application/json , however the ...

StatusStrip label not visible when text too long

I have a `StatusStrip` docked to the bottom of a C# Form, it contains a label, the text in it displays fine, except when there is longer length of text then it does not display at all, and I have to w...

3 Jan at 16:36