How to calculate 1st and 3rd quartiles?
I have DataFrame: ``` time_diff avg_trips 0 0.450000 1.0 1 0.483333 1.0 2 0.500000 1.0 3 0.516667 1.0 4 0.533333 2.0 ``` I want to get 1st quartile, 3rd quartile and medi...
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- 28 Aug at 19:38
How do you detect the host platform from Dart code?
For UI that should differ slightly on and , i.e. on , there must be a way to detect which one the app is running on, but I couldn't find it in the docs. What is it?
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 ...
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- 24 Nov at 00:18
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...
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- 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...
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- 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...
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- 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...
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...
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...
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- 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...
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- 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, ...
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...
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- 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...
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- 27 Aug at 08:17
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...
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- 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?
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- 27 Aug at 14:26
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...
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- 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> ...
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- 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...
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- 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...
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- 9 Jun at 20:37
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...
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...
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- 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...
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- 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; } ``` ...
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- 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...
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- 27 Aug at 10:13
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...
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- 3 Feb at 09:18