WebAPi - unify error messages format from ApiController and OAuthAuthorizationServerProvider

In my WebAPI project I'm using `Owin.Security.OAuth` to add JWT authentication. Inside `GrantResourceOwnerCredentials` of my OAuthProvider I'm setting errors using below line: ``` context.SetError("i...

How to add custom error message with “required” htmlattribute to mvc 5 razor view text input editor

I am naive to Asp.Net MVC. I have a partial view(ASP.Net MVC) in which I have some required fields I want to show custom error message if any of the required field in not provided. Below is the compl...

6 Jan at 07:26

Java 8 optional: ifPresent return object orElseThrow exception

I'm trying to make something like this: ``` private String getStringIfObjectIsPresent(Optional<Object> object){ object.ifPresent(() ->{ String result = "result"; //som...

5 Jan at 12:57

Mount current directory as a volume in Docker on Windows 10

I am using Docker version 1.12.5 on Windows 10 via Hyper-V and want to use container executables as commands in the current path. I built a Docker image that is running fine, but I have a problem to...

6 Aug at 17:20

C# LINQ select from where value is not contained in array / list

New to LINQ and not sure on the correct syntax for what I want to do. I have a "Blocklist", an array or list (could be either) of bad codes that I don't want put into this new "keys" list that I am ma...

28 Aug at 21:7

Clearing an input text field in Angular2

Why is this method not working when I try to clear the text field? ``` <div> <input type="text" placeholder="Search..." [value]="searchValue"> <button (click)="clearSearch()">Clear</butto...

12 Nov at 11:38

Can I combine these three similar functions into a single function?

Can I combine the three very similar functions below into a single function? All three functions update a particular column in the database. The anonymous object in the update statement is used to u...

EF & Automapper. Update nested collections

I trying to update nested collection (Cities) of Country entity. Just simple enitities and dto's: ``` // EF Models public class Country { public int Id { get; set; } public string Name { get...

5 Jan at 10:22

How to refresh a Page using react-route Link

I am trying to refresh a page using react-route Link. But the way I have implemented it goes to the URL one step back.(as an example if the URL was ../client/home/register and when I press the reload ...

5 Jan at 09:37

Life cycle in flutter

Does flutter have a method like `Activity.resume()` which can tell developer the user has gone back to the activity. When I pick the data from internet in Page-B and go back to Page-A, how can I let ...

15 Feb at 15:28

Remove or replace spaces in column names

How can spaces in dataframe column names be replaced with "_"? ``` ['join_date' 'fiscal_quarter' 'fiscal_year' 'primary_channel' 'secondary_channel' 'customer_count' 'new_members' 'revisit_next_day' ...

15 Aug at 15:35

Best place to store environment variables for Azure Function

I'm testing an azure function locally with several api keys. Whats the best place to store environment variables and how do I access them? I tried ``` System.Environment.GetEnvironmentVariable("name")...

19 Oct at 22:31

Vue v-on:click does not work on component

I'm trying to use the on click directive inside a component but it does not seem to work. When I click the component nothings happens when I should get a 'test clicked' in the console. I don't see any...

ServiceStack: Change DefaultNoProfileImgUrl

I need to change the profile photo by default, anyone knows how to do it? [https://github.com/ServiceStack/ServiceStack/blob/master/src/ServiceStack/Auth/AuthMetadataProvider.cs](https://github.com/S...

4 Jan at 22:52

Nested routes with react router v4 / v5

I am currently struggling with nesting routes using react router v4. The closest example was the route config in the [React-Router v4 Documentation](https://react-router.now.sh/). I want to split my a...

Add a msbuild task that runs after building a .NET Core project in Visual Studio 2017 RC

Is there something like the AfterBuild Target in msbuild with .NET Core in Visual Studio 2017 RC? I tried to add the following snipped to the .csproj file, but it is not excuted during a build (Contr...

4 Jan at 21:27

Can a TCP Socket SendAsync operation complete without transferring all the bytes in a BufferList?

On Mono 3.12, I'm using [Socket.SendAsync(SocketAsyncEventArgs)](https://msdn.microsoft.com/en-us/library/system.net.sockets.socket.sendasync(v=vs.110).aspx) with a TCP Stream `Socket` to implement a ...

15 Apr at 14:33

ViewComponent tag helpers not working

I have updated my asp.net core web application from 1.0.1 to 1.1.0, but tag helpers for my viewcomponents are not working: ``` <vc:login-form /> ``` it outputs the tag. It works using old syntax: @...

Akka.net vs Orleans performance

Hi I'm in the early stage of choosing an actor framework for a project I'm about to start. As far as I know Orleans was meant to relief the developer of as much pain as possible, at cost of some perf...

20 Jun at 09:12

"pip install json" fails on Ubuntu

Cannot install the json module. As far as I know I shouldn't use sudo. what's the matter? ``` pip install json The directory '/home/snow/.cache/pip/http' or its parent directory is not owned by the c...

4 Jan at 14:37

Convert a string to ordinal upper or lower case

Is it possible to convert a string to ordinal upper or lower case. Similar like invariant. ``` string upperInvariant = "ß".ToUpperInvariant(); string lowerInvariant = "ß".ToLowerInvariant(); bool inv...

4 Jan at 14:59

Servicestack client compression fails with generic lists

This question is a follow-up to [ServiceStack client compression](https://stackoverflow.com/questions/41428857/servicestack-client-compression/41447014) Servicestack natively supports client gzip/def...

23 May at 12:8

Angular2 - Input Field To Accept Only Numbers

In Angular 2, how can I mask an input field (textbox) such that it accepts only numbers and not alphabetical characters? I have the following HTML input: ``` <input type="text" *ngSwitchDefaul...

Returning a 404 from an explicitly typed ASP.NET Core API controller (not IActionResult)

ASP.NET Core API controllers typically return explicit types (and do so by default if you create a new project), something like: ``` [Route("api/[controller]")] public class ThingsController : Contro...

Typescript react - Could not find a declaration file for module ''react-materialize'. 'path/to/module-name.js' implicitly has an any type

I am trying to import components from react-materialize as - ``` import {Navbar, NavItem} from 'react-materialize'; ``` But when the webpack is compiling my `.tsx` it throws an error for the above as...

18 Jan at 12:9