AspNetCore 2.0 Claims always empty

I am working on converting a DotNet 4.5 MVC/WebAPI application to AspNetCore 2.0, and I'm having some trouble getting my Cookie authentication working again. When I set the cookie and try to access a ...

Read Controller and Action name in middleware .Net Core

I am writing a middleware class within my project in order to log the request data into our database. I do not see any easy way to get the controller name and action ? Any chance to do this easily i...

15 Jun at 04:13

Long pooling request using ServiceStack Service

I want to have a simple long pool request over `HTTP`, now question is that how can I realize the request connection still is alive ``` public async Task<ApiResponse<DeviceLongPoolRequest.Result>> Ge...

28 Aug at 13:8

Windows Form program can not find mdb file (C:\windows\system32\qbcdb.mdb)

Recently I have run into the issue of the C# program I am creating throwing an exception `Could not find file C:\windows\system32\qbcdb.mdb`. It's odd because I have never ran into this issue before w...

28 Aug at 12:47

Word Statusbar gets reset when I use range.Information

I have the following code (simplified to show the problem): ``` var wdApp = new Application(); var wdDoc = wdApp.Documents.Open("C:\foo.docx"); wdApp.StatusBar = "Updating..."; var rng = wdDoc.Range...

5 Sep at 14:53

Union vs Unionwith in HashSet

What the difference between `HashSet.Union` vs `HashSet.Unionwith` when i combine 2 hashsets. I am trying to combine like this: ``` HashSet<EngineType> enginesSupportAll = _filePolicyEvaluation.E...

28 Aug at 11:23

How to deactivate or override the Android "BACK" button, in Flutter?

Is there a way to deactivate the Android back button when on a specific page? ``` class WakeUpApp extends StatelessWidget { @override Widget build(BuildContext context) { return new Material...

3 Jan at 00:23

Why is this code giving me invalid content type from Request.Form? (ASP.NET Core)

This is using ASP.NET Core 2.0 OnGet method of RazorPages. cs file: ``` using System; using Microsoft.AspNetCore.Mvc; using Microsoft.AspNetCore.Mvc.RazorPages; namespace CoreRazor2.Pages { publi...

28 Aug at 02:51

Meaning of the syntax: return _(); IEnumerable<TSource> _()

In the C# code below, I found the usage of `_()` strange. Can anyone explain what this means? ``` public static IEnumerable<TSource> DistinctBy<TSource, TKey>(this IEnumerable<TSource> source, ...

28 Aug at 13:49

Different behavior in pattern matching when using var or explicit type

Consider the following, at first glance absurd, pattern match: ``` string s = null; if (s is string ss) //false if (s is string) //false ``` Both `is` will return `false`. However if we use `var` t...

27 Aug at 10:33

System.Web.Mvc.HttpPostAttribute vs System.Web.Http.HttpPostAttribute?

In my Web API project which is based on the ASP.NET MVC, I want to use the `HttpPost` attribute. When I've added that onto the action, The IntelliSense suggests me these two namespaces: - - Which o...

UWP Standard CMS Enveloped Encryption

I need to implement AES Encryption Algorithm in Cryptographic Message Syntax (CMS) [standard](https://www.rfc-editor.org/rfc/rfc5652) to encrypt my data in Windows Universal App (found reference [here...

7 Oct at 07:59

Which C# version .NET Core uses?

I know that [C# version depends on .NET Framework](https://stackoverflow.com/a/19532977/240564). But .NET Core which version uses? Particularly .NET Core 2? C#7?

Convert DataTable to IEnumerable<T> in ASP.NET Core 2.0

I need to generate an 'IEnumerable from a DataTable that I receive as an input from another system. The following code worked in ASP.NET 4.6.1. ``` public static IEnumerable<UserAssignmentDto> Sta...

27 Aug at 02:8

React Router Pass Param to Component

``` const rootEl = document.getElementById('root'); ReactDOM.render( <BrowserRouter> <Switch> <Route exact path="/"> <MasterPage /> </Route> ...

26 Aug at 19:7

How do you show underlying SQL query in EF Core?

At 3:15 from the end of this "[.NET Core 2.0 Released!](https://channel9.msdn.com/Blogs/dotnet/NET-Core-20-Released/)" video, Diego Vega shows a demo of new features in Entity Framework Core 2.0. As p...

13 Jan at 22:13

How to Add an implementation of 'IDesignTimeDbContextFactory<DataContext>' to the project in asp.net-core-2.0

Here are the list of packages which I have installed : [Installed Packages](https://i.stack.imgur.com/UQLme.png) I am using Entityframework core 2.0. First time I have successfully created database u...

Flutter remove all routes

I want to develop a logout button that will send me to the log in route and remove all other routes from the `Navigator`. The documentation doesn't seem to explain how to make a `RoutePredicate` or ha...

5 Feb at 16:12

ServiceStack Renaming SyncReply Client

I am looking at using a ServiceStack web service in place of an existing third-party web service. I have matched the DTOs used by the third-party service. However, the client is expecting a proxy cl...

25 Aug at 21:0

Force Windows Challenge

I have a AuthorizationProvider that needs to use both Anonymous and Windows and I can't seem to get then windows challenge to work using: ``` if (principal == null || principal.Identity == null || st...

28 Apr at 09:23

How to allow only positive number to be entered in editorforfield in asp.net mvc 5

I want a field to allow on positive number. I tried below attempt: Model ``` [Required] [GreaterThanZero(ErrorMessage = "Only positive number allowed.")] public int PositiveNumber { get; set; } ``` ...

25 Aug at 18:15

Azure AD B2C - Role management

I have an Asp.NET MVC Application connected with Azure AD B2C. In the Administrator settings I've created an Administrators Group: [](https://i.stack.imgur.com/7xTKl.jpg) In my code I would like to...

ASP.NET Core 2 + Get instance of db context

I am trying to get an instance of the DbContext (so I can do some additional work upon startup with it), I get the following error when trying to get an instance in the Configure method: System.Inval...

npm ERR! code UNABLE_TO_GET_ISSUER_CERT_LOCALLY

I am trying all possible ways to create a React application. I have tried Maven, and now I am trying `create-react-app` from Facebook Incubators. When I tried to run the command `create-react-app my-a...

OrmLite Code-First approach keeping existing database data?

I am trying Code-First approach of ServiceStack.OrmLite that will auto generate db structure. However, I find that the db structure will be re-generated again when I change the code structure (and er...