[译]ASP.NET Core 2.0 部分视图

问题

如何在ASP.NET Core 2.0中使用部分视图来重用页面的公共部分？

答案

新建一个空项目，在Startup中添加MVC服务和中间件：

public void ConfigureServices(IServiceCollection services)
{
	services.AddMvc();
}

public void Configure(IApplicationBuilder app, IHostingEnvironment env)
{
	if (env.IsDevelopment())
	{
		app.UseDeveloperExceptionPage();
	}

	app.UseMvc(routes =>
	{
		routes.MapRoute(
			name: "default",
			template: "{controller=Home}/{action=Index}/{id?}");
	});
}

添加两个模型：

public class EmployeeViewModel
{
	public int Id { get; set; }
	public string Firstname { get; set; }
	public string Surname { get; set; }
	public AddressViewModel Address { get; set; }
}

public class AddressViewModel
{
	public string Line1 { get; set; }
	public string Line2 { get; set; }
	public string Line3 { get; set; }
}

添加控制器，返回ViewResult并传入模型实例：

public class HomeController : Controller
{
	public IActionResult Index()
	{
		var model = new EmployeeViewModel
		{
			Id = 1,
			Firstname = "James",
			Surname = "Bond",
			Address = new AddressViewModel
			{
				Line1 = "Secret Location",
				Line2 = "London",
				Line3 = "UK"
			}
		};
		return View(model);
	}
}

添加视图页面Index.cshtml：

@using PartialView.Models;
@model EmployeeViewModel

<div style="border: 1px solid black; margin: 5px">
    <h2>Employee Details (parent view)</h2>

    <p>Firstname: @Model.Firstname</p>
    <p>Surname: @Model.Surname</p>

    @Html.Partial("_Address.cshtml", Model.Address)
</div>

添加部分视图_Address.cshtml：

@using PartialView.Models
@model AddressViewModel

<div style="border: 1px dashed red; margin: 5px">
    <h3>Address Details (partial view)</h3>

    <p>Lin1: @Model.Line1</p>
    <p>Line2: @Model.Line2</p>
    <p>Line3: @Model.Line3</p>
</div>

现在，解决方案中的目录结构：