What is the equivalent of [Serializable] in .NET Core ? (Conversion Projects)
In many cases, when I want to convert current .NET Framework projects to .NET Core equivalent, some classes have . What should I do for convert them in .NET Core ? (In this time I delete them !!!) ...
Linq performance: should I first use `where` or `select`
I have a large `List` in memory, from a class that has about 20 `properties`. I'd like to filter this list based on just one `property`, for a particular task I only need a list of that `property`. ...
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- 18 Feb at 01:23
No assembly found containing an OwinStartupAttribute Error
This error The following errors occurred while attempting to load the app. - No assembly found containing an OwinStartupAttribute. - The given type or method 'false' was not found. Try specifying th...
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- 29 Aug at 02:50
laravel 5.3 new Auth::routes()
Recently I start to use laravel 5.3 to write a blog, but I have a question after run `php artisan make:auth` when I run this, it will generate routes in my `web.php` this is the code in it: ``` Aut...
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- 29 Aug at 01:10
Equivalent of the method RSACryptoServiceProvider signHash in Java
I'm trying to get the equivalent of the following C# method : ``` public byte[] SignHash(byte[] btHash, string SN) { string strSignature = string.Empty; X509Store x509store = null; x509st...
Setting a backgroundImage With React Inline Styles
I'm trying to access a static image to use within an inline `backgroundImage` property within React. Unfortunately, I've run up dry on how to do this. Generally, I thought you just did as follows: ```...
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- 10 Aug at 20:45
'gulp' is not recognized as an internal or external command
I am trying to use [Gulp](http://gulpjs.com/) and [Node.Js](https://nodejs.org/en/) to stream my process for minifying and concatenating CSS/JS files for production. Here is what I have done. 1. I ...
How to compress a Byte array without stream or system io
I'm trying to encode an image into a byte array and send it to a server. the encoding and sending parts wok fine but my problem is that the byte array is too large and takes too long to send so I thou...
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- 28 Aug at 13:48
C# async within an action
I would like to write a method which accept several parameters, including an action and a retry amount and invoke it. So I have this code: ``` public static IEnumerable<Task> RunWithRetries<T>(List<...
Cannot find module 'eslint-config-defaults/configurations/eslint'
I am new to working with the light version of Visual Studio Code and for the life of me I cannot figure out how to resolve this error. I've tried to pull in any type of file the even closely resemble...
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- 28 Aug at 11:42
How to get object using Httpclient with response Ok in Web Api
my web api like ``` public async Task<IHttpActionResult> RegisterUser(User user) { //User Implementation here return Ok(user); } ``` I am using HTTPClient to request web a...
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- 28 Aug at 09:56
How to run code after a delay in Xamarin Android
I'm trying to show some code after a delay in my Android app. The Java code for doing this is something like this: ``` new Handler().postDelayed(new Runnable() { @Override public void run() ...
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- 28 Aug at 07:36
Enable SSL in Visual Studio
I have enabled SSL in Visual Studio as shown below: [](https://i.stack.imgur.com/x6Qx3.png) I have also set the below: [](https://i.stack.imgur.com/3w6VH.png) When I access the website via IE (via...
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- 27 Aug at 17:17
Evaluation of method in Watch window cannot be called in this context
I'm trying to see the `DateTimeOffset` values of some objects in a collection in the Watch window. So I typed: ``` collection.Select(v => v.CreatedAt.ToString("O")) ``` Trying to evaluate this howe...
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- 27 Aug at 16:9
How do I add a parameter to an action filter in asp.net?
I have the following filter attribute, and i can pass an array of strings to the attribute like this `[MyAttribute("string1", "string2")]`. ``` public class MyAttribute : TypeFilterAttribute { pr...
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- 27 Aug at 13:12
How do I install PIL/Pillow for Python 3.6?
I have a script that requires PIL to run. Other than downgrading my Python, I couldn't find anyway to install PIL on my Python 3.6 Here are my attempts: ``` pip install pil Collecting pil Could no...
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- 27 Aug at 10:59
How to to return an image with Web API Get method
I need to return an image with a Web API Get method. The code below seems to work fine except that I get this message in the Fiddler's ImageView window, "This response is encoded, but does not claim t...
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- 12 Jul at 02:7
Copying files to a container with Docker Compose
I have a `Dockerfile` where I copy an existing directory (with content) to the container which works fine: ``` FROM php:7.0-apache COPY Frontend/ /var/www/html/aw3somevideo/ COPY Frontend/ /var/www...
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- 8 Nov at 18:34
Docker-Compose persistent data MySQL
I can't seem to get MySQL data to persist if I run `$ docker-compose down` with the following `.yml` ``` version: '2' services: # other services data: container_name: flask_data image: m...
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- 23 May at 12:10
How to register multiple implementations of the same interface in Asp.Net Core?
I have services that are derived from the same interface. ``` public interface IService { } public class ServiceA : IService { } public class ServiceB : IService { } public class ServiceC : IService...
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- 4 Dec at 23:21
asp.net core remove X-Powered-By cannot be done in middleware
Why can I not remove X-Powered-By as part of my middleware that I am executing? I can remove it if I put in the web.config but not if I put it in the middleware. I am removing another header in the ...
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- 2 Nov at 02:53
Drop all data in a pandas dataframe
I would like to drop all data in a pandas dataframe, but am getting `TypeError: drop() takes at least 2 arguments (3 given)`. I essentially want a blank dataframe with just my columns headers. ``` im...
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- 26 Aug at 20:9
Pandas: convert dtype 'object' to int
I've read an SQL query into Pandas and the values are coming in as dtype 'object', although they are strings, dates and integers. I am able to convert the date 'object' to a Pandas datetime dtype, but...
MissingFieldException when querying a table with ServiceStack.OrmLite ServiceStack
I'm getting a `MissingFieldException` for multiple OrmLite operations: ``` using (var db = DbFactory.Open()) { var exp = db.From<Product>(); if (filter.Field1 != null) exp.Where(w =>...
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- 26 Aug at 20:18
Unity with ASP.NET Core and MVC6 (Core)
Unity is being developed [here](https://github.com/unitycontainer/container) but I haven't had the time to test how it plays with the ASP.NET Core framework. This solution is for the specific proble...
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- 22 Aug at 21:53