A .NET GIS solution that is fast and reliable for the .NET platform.
NetTopologySuite is a direct-port of all the functionalities offered by JTS Topology Suite: NTS expose JTS in a '.NET way', as example using Properties, Indexers etc...

Initial tests that we’ve run have WSL 2 running up to 20x faster compared to WSL 1 when unpacking a zipped tarball, and around 2-5x faster when using git clone, npm install and cmake on various projects. 

These are the customer-reported issues addressed in 15.7.2:

• With 15.7, users installing an extension on the command line with a nested extension may see an error installing. This has been addressed in the 15.7.2 servicing release.
• Anaconda fails to uninstall during upgrade and issues warning (Error 87).
• The SSDT 15.6.0 Installer configuration registry key could not be opened..
• Editor performance Issues when editing JavaScript.
• The Code Coverage functionality in Visual Studio 2017 ignores async methods.
• Missing atls.lib in arm/arm64 after update.
• Test Explorer no longer greys out the previously run unit tests.
• Version 15.7.1 debugs .aspx App in a new Chrome instance even if JavaScript debugging is disabled.
• 15.7 compiler fails with Folly.
• ASP project keeps running after closing the web page.
• Chrome Debugger not working and shows an error message, however, the debugger buttons stay active. .
• Rename Python from Rename on the Refactor menu no longer works.
• Visual Studio Installer doesn't work correctly in low disk space conditions.
• Debugger links to browser when previously not set.
• Problems with template argument deduction for class templates.
• C++ constexpr string_view == fails to compile.
• A regression in Type Providers which use native resources (e.g., FSharp.Data.TypeProviders) has been fixed.
• You can now add files to F# ASP.NET Core projects from the UI.
• Listening to Microsoft-Extensions-Logging causes VS diagnostic events window to disconnect with an error message has been fixed in Service Fabric Tools. 

- Project format is changing to a single JSON file
- ASP.NET MVC and Web API have been unified into a single programming model
- Project Roslyn allows for a “no-compile” developer experience while making updates
- Migration to a OWIN hosting model allows for flexibility in production web hosts (IIS or running on Linux via Mono)

Try Bazel’s opt-in preview in Angular CLI

In Google we build all our software with a tool called Bazel. We’ve been using it for the past over 12 years to build projects with any size — from small internal apps, to large applications such as Gmail, Google Drive, and Google Cloud Console. 

What’s new?

Here’s a sampling of the great new features and improvements in ASP.NET Core for .NET 7:

• Servers and runtime
  • Rating limiting: Limit the rate of handled requests using flexible endpoint configuration and policies.
  • Output caching: Configure output caching to reduce to more efficiently handle request.
  • Request decompression: Accept requests with compressed content.
  • HTTP/3: Built-in support for HTTP/3, the latest HTTP version based on the new QUIC multiplexed transport protocol.
  • WebSockets over HTTP/2: Use WebSockets over HTTP/2 connections.
  • WebTransport (experimental): Create streams and data grams over HTTP/3 with experimental support for WebTransport.
• Minimal APIs
  • Endpoint filters: Use endpoint filters to run cross-cutting code before or after a route handler.
  • Typed results: Return strongly typed results from minimal APIs.
  • Route groups: Organize groups of endpoints with a common prefix
• gRPC
  • JSON transcoding: Expand the reach of your gRPC services by also exposing them as JSON-based APIs
  • OpenAPI with JSON transcoding (experimenal): Use experimental support for generating OpenAPI specs for your gRPC JSON transcoded services.
  • gRPC health checks: Report and check the health of gRPC server apps.
  • gRPC client AddCallCredentials : Create clients that send authorized requests using bearer tokens.
• SignalR
  • Client results: Return client results to the server in response to requests from the server.
• MVC
  • Nullable view and page models: Nullable page and view models are now supported to improve the experience when using null state checking.
• Blazor
  • Custom elements: Build standard HTML custom elements with Blazor to integrate Blazor components with any JavaScript-based app.
  • Handle location changing events: Intercept location changing events to create custom user experiences when navigating.
  • Bind after/get/set modifiers: Run async logic after data binding and independently control how data binding gets and sets the data.
  • Dynamic authentication requests: Create dynamic authentication requests at runtime with custom parameters to handle advanced authentication scenarios in Blazor WebAssembly apps.
  • Improved JavaScript interop on WebAssembly: Optimize JavaScript interop call when running on WebAssembly using the new [JSImport]/[JSExport] support.
  • WebAssembly SIMD & exception handling: Improve performance with .NET WebAssembly ahead-of-time (AOT) compilation using WebAssembly SIMD and exception handling support. 

There has never been a better time to be a .NET developer, you can now build Android, iOS, Linux, Mac, and Windows applications with .NET all in Open Source. In this session we will run through some of the new innovations including the .NET Framework updates, .NET Standard, Universal Windows Platform updates, .NET Core, managed languages and more. We will also review the updates to Visual Studio and Visual Studio Code to make you a better developer, come see some of the latest productivity features in these tools including managing code style, searching your source and more.
 

public IActionResult Get()
{
    var userData = new User
    {
        Name = "Farhad",
        Family = "Zamani"
    };

    _logger.LogInformation($"ValuesController called. Name:{userData.Name}, Family:{userData.Family}");

    return Ok();
}

اگر بخواهیم مرتب سازی و یا فیلتری را بر روی Name و یا Family انجام دهیم، کار آسانی نخواهد بود و وقت‌گیر خواهد بود؛ زیرا باید با یک فیلد رشته ( message )، که تمامی لاگ درون آن قرار دارد، کار کنیم. اما با استفاده از قابلیت Structured Logging مربوط به Serilog، می‌توانیم آبجکت userData را به ILogger پاس دهیم و پراپرتی‌های آن را به صورت فیلدهای جدا نمایش دهیم. 

برای این کار باید آبجکت موردنظر خود را درون {} قرار دهیم و قبل از نام متغییر آن یک @ قرار دهیم. بدین صورت: {userData@}  و سپس دیتای موردنظر را در پارامتر دوم logger قرار دهیم.

_logger.LogInformation("ValuesController called. {@userData}", userData);

 اگر کد نوشته شده مربوط به ثبت لاگ را به صورت زیر اصلاح کنیم:

public IActionResult Get()
{
    var userData = new User
    {
        Name = "Farhad",
        Family = "Zamani"
    };

    _logger.LogInformation("ValuesController called. {@userData}", userData);

    return Ok();
}

در پنل کیبانا به راحتی می‌توان عملیات مرتب سازی و یا فیلتر را بر روی پراپرتی‌های Name و Family انجام دهیم. اکنون اگر پنل کیبانا را تماشا کنید چنین لاگی را مشاهده می‌کنیم:

هرکدام از پراپرتی‌های userData به صورت یک فیلد جدا ارسال شده‌است که به راحتی می‌توانید مرتب سازی، فیلتر و... را بر روی هرکدام از فیلدها انجام دهید.

تنظیمات مربوط به Serilog:

public static void Main(string[] args)
{
    var configuration = new ConfigurationBuilder()
        .AddJsonFile("appsettings.json", optional: false, reloadOnChange: true)
        .Build();

    Log.Logger = new LoggerConfiguration()
        .Enrich.FromLogContext()
        .Enrich.WithMachineName()
        .Filter.ByExcluding(Matching.FromSource("Serilog"))
        .Filter.ByExcluding(Matching.FromSource("System.Net.Http"))
        .Filter.ByExcluding(Matching.FromSource("Microsoft.AspNetCore"))
        .WriteTo.Console()
        .ReadFrom.Configuration(configuration)
        .CreateLogger();

    CreateHostBuilder(args).Build().Run();
}

public static IHostBuilder CreateHostBuilder(string[] args) =>
    Host.CreateDefaultBuilder(args)
        .UseSerilog()
        .ConfigureWebHostDefaults(webBuilder =>
        {
            webBuilder.UseStartup<Startup>();
        });

فایل appsettings.json:

{
  "Logging": {
    "LogLevel": {
      "Default": "Information",
      "Microsoft": "Warning",
      "Microsoft.Hosting.Lifetime": "Information"
    }
  },
  "AllowedHosts": "*",
  "Serilog": {
    "WriteTo": [
      {
        "Name": "Elasticsearch",
        "Args": {
          "nodeUris": "http://127.0.0.1:9200;",
          "indexFormat": "structuredlogging-{0:yyyy.MM}",
          "templateName": "structuredlogging"
        }
      }
    ]
  }
}

فایل docker-compose برای اجرای Elasticsearch  و Kibana:

version: '3'
services:
  elasticsearch:
    container_name: elasticsearch
    image: elasticsearch:7.14.2
    environment:
      - discovery.type=single-node
    ports:
      - 9200:9200
      - 9300:9300
      - 8200:8200

  kibana:
    container_name: kibana
    image: kibana:7.14.2
    ports:
      - 5601:5601

منابع استفاده شده:

• https://serilog.net
  
• https://code-maze.com/structured-logging-in-asp-net-core-with-serilog
  

Xamarin.Forms 4.0 is here with an array of new features and capabilities to help you create amazing, multi-experience apps that perform efficiently and look great. Xamarin.Forms 4.0.0 also introduces Shell—a simplified, navigation-aware container that makes it easier to build mobile applications. The upgrade path to 4.0 and Shell is also designed to be as simple as possible. Finally, the latest release adds extended support for faster renderers and a unified image source feature to help you create better apps for your users.