(Original reference: https://zh.wikipedia.org/wiki/ASP.NET_Core_MVC)
- Initial release on 27 June 2016.
- Latest release (ASP.NET Core MVC 1.1.2) on 16 Feb 2017.
Routing (Convention-based routing)
public void ConfigureServices(IServiceCollection services)
{
// Register the ASP.NET Core MVC service to container.
services.AddMvc();
}
public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory)
{
// ...
// Configure with ASP.NET Core MVC
app.UseMvc(routes =>
{
routes.MapRoute(
name: "default",
template: "{controller=Home}/{action=Index}/{id?}");
});
}
Attribute routing
[Route("api/[controller]")]
public class ProductsController : Controller
{
[HttpGet("{id}")]
public IActionResult GetProduct(int id)
{
...
}
}
Controller
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc;
namespace WebApplication18.Controllers
{
public class HomeController : Controller
{
public HomeController(IOptions<SampleWebSettings> settingsOptions) // injects dependence
{
_settings = settingsOptions.Value;
}
private readonly SampleWebSettings _settings;
public IActionResult Index()
{
ViewData["Title"] = _settings.Title;
ViewData["Updates"] = _settings.Updates;
return View();
}
public IActionResult About()
{
ViewData["Message"] = "Your application description page.";
return View();
}
public IActionResult Contact()
{
ViewData["Message"] = "Your contact page.";
return View();
}
public IActionResult Error()
{
return View();
}
}
}
Model Validation
using System.ComponentModel.DataAnnotations;
public class LoginViewModel
{
[Required]
[EmailAddress]
public string Email { get; set; }
[Required]
[DataType(DataType.Password)]
public string Password { get; set; }
[Display(Name = "Remember me?")]
public bool RememberMe { get; set; }
}
View Component
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc;
namespace HelloMvc.Components
{
[ViewComponent(Name = "AddNumber")]
public class AddNumberComponent : ViewComponent
{
public async Task<IViewComponentResult> InvokeAsync(int Number1, int Number2)
{
int result = Number1 + Number2;
ViewBag.N1 = Number1;
ViewBag.N2 = Number2;
return View(result);
}
}
}
Tag Helper
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Razor.TagHelpers;
namespace HelloMvc.TagHelpers
{
public class EmailTagHelper : TagHelper
{
private const string EmailDomain = "contoso.com";
// Can be passed via <email mail-to="..." />.
// Pascal case gets translated into lower-kebab-case.
public string MailTo { get; set; }
public override void Process(TagHelperContext context, TagHelperOutput output)
{
output.TagName = "a"; // Replaces <email> with <a> tag
var address = MailTo + "@" + EmailDomain;
output.Attributes.SetAttribute("href", "mailto:" + address);
output.Content.SetContent(address);
}
}
}
Use Injection in View
@using HelloMvc.Services;
@inject IDateTimeIndicator indicator
<html>
<body>
...
<div>
<ul>
<li>@indicator.GetNowIndicator(new DateTime(2016, 5, 7, 0, 0, 0))</li>
<li>@indicator.GetNowIndicator(new DateTime(2016, 5, 7, 0, 5, 0))</li>
<li>@indicator.GetNowIndicator(new DateTime(2016, 5, 6, 0, 20, 0))</li>
<li>@indicator.GetNowIndicator(new DateTime(2016, 5, 5, 0, 0, 0))</li>
</ul>
</div>
</body>
</html>
Optional Render Section
<environment include="Development">
<div>The effective tag is: <environment include="Development"></div>
</environment>
<environment exclude="Development">
<div>The effective tag is: <environment exclude="Development"></div>
</environment>
<environment include="Staging,Development,Staging_2">
<div>
The effective tag is:
<environment include="Staging,Development,Staging_2">
</div>
</environment>
Mapping Sequence of Model Binding
1. Form fields
2. The request body (For controllers that have the [ApiController] attribute.)
3. Route data
4. Query string parameters
5. Uploaded files
Data Annotation
[Bind] | [BindProperty] | [BindProperty(Name = "Name123")]
[BindProperty(SupportsGet = true)] | [Key] | [DisplayName] | [Column] | [Required]
[DataType] | [Display] | [StringLength], [Range] | [EmailAddress]
[Range ] | [RegularExpression] | [RequestSizeLimit] | [HttpGet] | [HttpPost]
[ApiController] | [ValidateAntiForgeryToken] | [FromForm] | [Route] | [ResponseCache]
[AllowAnonymous] | [ViewComponent]
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