asp.net core changes every developer should know

ASP.NET Core MVCChanges Every Developer Should Know

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About Me

Ed Charbeneau Developer Advocate for Progress, Telerik DevCraft Developer.Telerik.com Twitter @EdCharbeneau


.NET Core overview


Hello.NET Core 1.1.1

Cross platform• Development,

Deployment• Windows, Mac, Linux

Current App Models• UWP• Console Applications• ASP.NET Core


Hello ASP.NET Core 1.1.1

vNext ASP.NET 5 ASP.NET Core 1.1.1


Cross platform development

DOTNET CLI

Read more: http://developer.telerik.com/featured/net-cli-decoded/

http://developer.telerik.com/featured/net-cli-decoded/


Cross platform deployment


ASP.NET Core “MVC” overview


Just the FAQs

ASP.NET Core is a complete rewrite MVC is a module for ASP.NET Core MVC and Web API have merged into a single codebase There is no longer an MVC 6, the module was reversioned to 1.0 There is no official plan for WebForms on .NET Core


Modularity

ASP.NET Core uses a request pipeline Successor to HttpHandler Read / Write directly to the HTTP Pipeline

using middleware MVC is ASP.NET Core middleware Raw access to the HTTP request/response

(A.k.a. the bare metal) Built using Dependency Injection

Pipeline

HTTP Request

HTTP Response

middleware

MVC

middleware


No dependency on IIS

Remember, cross platform! ASP.NET Core can be:

• Self-hosted• Cloud hosted• Mac, Windows, Linux• Docker (integrated with VS2017)


cross-platform asynchronous I/O library

Should use Reverse Proxy Server

ASP.NET Core Module .UseIISIntegration()

Servers

Kestrel WebListener

Windows only Direct connection to the Internet


File, New Project


What's (Mostly) the Same

MVC design pattern itself• Models• Views • Controller


What's Missing

App_Start App_Data Global.ASAX /Scripts /Content Web.Config*

* For IIS support only


ASP.NET Core 1.0 – 1.1 changes

/src Project.json

• In ASP.NET Core 1.0, this replaced .csproj• .csproj is back in 1.1• 1.0 apps must to migrate to .csproj

Web.Config• For IIS support only


What’s new

/wwwroot Dependencies /Data/Migrations Appsettings.json Startup.cs Program.cs _ViewImports.cshtml

Visual Studio Demo


Application Initialization

ASP.NET Core is a Console Application


Application Initialization

ASP.NET Core

No dependency on IIS Initialized via command line Program.Main() builds web host &

invokes Startup Startup.cs handles startup

.NET Framework 4.6, ASP.NET

IIS (InetMgr.exe) initialized application HttpApplication.Application_Start() Startup code handled by Global.asax


Application Startup

Replaces App_Start, and Global.ASAX Startup is called by WebHostBuilder.UseStartup

Program.Main()

ConfigureServices()

Configure()

Startup

Startup()


New Configuration Options

Configuration options are resolved in the Startup constructor Settings can be stored in .json, .xml or environment variables


Overloading Configuration Options

Overloading

Dev Ops Friendly Multiple configs

• Development• Staging• Production

Last setting to be resolved wins

Example

var builder = new ConfigurationBuilder() .SetBasePath(env.ContentRootPath) .AddJsonFile(“foo.json”) .AddJsonFile(“bar.json”);

Configuration.GetValue<string>(“myKey”); //=> Bar


Startup methods

ConfigureServices

Dependency Injection (DI) configured IServiceCollection is the DI container AddTransient<TService, TImplementation>();

services.AddMvc();

Configure

HTTP Middleware is added IApplicationBuilder is the pipeline app.UseMiddleware() app.UseMvc(routes …)

Visual Studio Demo


TagHelpers


Overview

Augments HTML to include server-side code & values


Just the FAQs

TagHelpers Are

Use tags and attributes like HTML Rendered Server-Side Supported by intellisense

TagHelpers Are Not

Going to eliminate Razor @Html Like WebForms

Visual Studio Demo


UI for ASP.NET Core

For ASP.NET Core 70+ ASP.NET MVC Components Powered by Kendo UI Charts Graphs Grids Schedulers Responsive, works on any screen size


Polished UI for All your Appshttp://telerik.com/devcraft

Thank you

asp.net core changes every developer should know

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