using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Logging;
using Microsoft.Extensions.Logging.Console;

namespace EFLogging
{
    public class BloggingContextWithFiltering : DbContext
    {
        // It is very important that applications do not create a new ILoggerFactory instance for each context instance. 
        // Doing so will result in a memory leak and poor performance.
        public static readonly LoggerFactory MyLoggerFactory
            = new LoggerFactory(new[]
            {
                new ConsoleLoggerProvider((category, level)
                    => category == DbLoggerCategory.Database.Command.Name
                       && level == LogLevel.Information, true)
            });

        public DbSet<Blog> Blogs { get; set; }

        protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
            => optionsBuilder
                .UseLoggerFactory(MyLoggerFactory) // Warning: Do not create a new ILoggerFactory instance each time
                .UseSqlServer(
                    @"Server=(localdb)\mssqllocaldb;Database=EFLogging;Trusted_Connection=True;ConnectRetryCount=0");
    }
}

<ItemGroup>
   <DotNetCliToolReference Include="Microsoft.EntityFrameworkCore.Tools.DotNet" Version="2.0.0" />
</ItemGroup>

warning : Using DotNetCliToolReference to reference 'Microsoft.EntityFrameworkCore.Tools.DotNet' is obsolete and can be removed from this project. This tool is bundled by default in the .NET Core SDK.
warning : Using DotNetCliToolReference to reference 'Microsoft.DotNet.Watcher.Tools' is obsolete and can be removed from this project. This tool is bundled by default in the .NET Core SDK.

 dotnet tool install -g example

 %USERPROFILE%\.dotnet\toolspkgs (Windows)
 $HOME/.dotnet/toolspkgs (macOS/Linux)

 %USERPROFILE%\.dotnet\tools

 ~/.dotnet/tools

Windows PowerShell:
setx PATH "$env:PATH;$env:USERPROFILE/.dotnet/tools"
Linux/macOS:
echo "export PATH=\"\$PATH:\$HOME/.dotnet/tools\"" >> ~/.bash_profile

<Project Sdk="Microsoft.NET.Sdk">  
   <PropertyGroup>
     <OutputType>Exe</OutputType>
     <IsPackable>true</IsPackable>
     <PackAsTool>true</PackAsTool>
     <TargetFramework>netcoreapp2.1</TargetFramework>
   </PropertyGroup>  
</Project>

 dotnet pack -c Release

 dotnet tool install -g package-name

An In Depth Tutorial on Linux Development on Windows with WSL and Visual Studio Code 

• ASP.NET AJAX در آینده نیز کاملا پشتیبانی می‌شود، اما شهروند درجه یک محسوب نخواهد شد؛ مانند استفاده از ScriptManager و UpdatePanel

• Ajax Control Toolkit که اکنون به صورت سورس باز در سایت CodePlex نیز قابل دریافت است، منسوخ شده در نظر گرفته شده و تنها در آینده شاید هر از چندگاهی به رفع باگ‌های گزارش شده در آن پرداخته شود (اما دیگر به صورت فعال توسعه داده نخواهد شد).

• Microsoft Ajax Library / ASP.NET Ajax Library هر چند تشابه اسمی با ASP.NET Ajax دارند اما جزئی از کتابخانه‌ی AJAX Control Toolkit بوده و این مورد نیز از این پس منسوخ شده در نظر گرفته خواهد شد (مانند استفاده از DataView یا Sys.require ).

e are very pleased to announce the availability of ASP.NET Core RC2.  This release succeeds the ASP.NET 5 RC1 release and features a number of updates to enhance compatibility with other .NET frameworks and an improved runtime.  

A function for loading CSS asynchronously

Why loadCSS?

Referencing CSS stylesheets with link[rel=stylesheet] or @import causes browsers to delay page rendering while a stylesheet loads. When loading stylesheets that are not critical to the initial rendering of a page, this blocking behavior is undesirable. The new <link rel="preload"> standard enables us to load stylesheets asynchronously, without blocking rendering, and loadCSS provides a JavaScript polyfill for that feature to allow it to work across browsers. Additionally, loadCSS offers a separate (and optional) JavaScript function for loading stylesheets dynamically.

npm install fg-loadcss --save

JavaScript Object Notation (JSON) is a subset of the JavaScript language used for the definition and exchange of data. While I’m not proposing that we create a similar standard using C#, I do want to illustrate some of the rich object initialization syntax of the language.

Nebular is a great toolkit if you build Rich UI web-application based on Angular, and want to bootstrap your development using essential features out of the box. It provides you with a set of native Angular components, themeable components, authentication and security layers easily configurable for your API. At the same time, Nebular allows you to use it together with any other UI library you choose.