ASP.NET Core MVC

Use Layout in ASP.NET Core MVC 5

Create ASP.NET Core MVC 5 Project

On the Visual Studio, select Create a new project from Get Started

Select ASP.NET Core Web Application




Input Project Name and select Location for new project

Select ASP.NET Core 5.0 Version and select ASP.NET Core Empty Template. Click Create button to finish




Add CSS Files

Create new folder named css in wwwroot folder. In this folder, create new css file named style.css as below:

.format {
    color: red;
}

Add Configurations

Open Startup.cs file and add new configurations as below:

using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;

namespace LearnASPNETCoreMVC5
{
    public class Startup
    {
        public void ConfigureServices(IServiceCollection services)
        {
            services.AddControllersWithViews();
        }

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

            app.UseRouting();

            app.UseEndpoints(endpoints =>
            {
                endpoints.MapControllerRoute(
                    name: "default",
                    pattern: "{controller=Demo}/{action=Index}/{id?}");
            });
        }
    }
}




Create Layout Page

Create new folder named Views. In Views folder, create new folder named Shared. In this folder, create Razor Layout named _MyLayoutPage.cshtml as below:

<html>
<head>
    <meta name="viewport" content="width=device-width" />
    <title>@ViewBag.Title</title>
    @RenderSection("head", false)
</head>
<body>

    <a asp-controller="home" asp-action="index">Home</a> |
    <a asp-controller="aboutus" asp-action="index">About Us</a> |
    <a asp-controller="news" asp-action="index">News</a>
    <br /><br />
    @RenderBody()
    <br /><br />
    Copyright PMK Lab

</body>
</html>

Create Controller

In Controllers folder, create new controllers as below:

Home Controller

Create new controller named HomeController.cs as below:

using Microsoft.AspNetCore.Mvc;

namespace LearnASPNETCoreMVC5.Controllers
{
    [Route("home")]
    public class HomeController : Controller
    {
        [Route("")]
        [Route("index")]
        [Route("~/")]
        public IActionResult Index()
        {
            return View();
        }
    }
}

AboutUs Controller

Create new controller named AboutUsController.cs as below:

using Microsoft.AspNetCore.Mvc;

namespace LearnASPNETCoreMVC5.Controllers
{
    [Route("aboutus")]
    public class AboutUsController : Controller
    {
        [Route("index")]
        public IActionResult Index()
        {
            return View();
        }
    }
}




News Controller

Create new controller named NewsController.cs as below:

using Microsoft.AspNetCore.Mvc;

namespace LearnASPNETCoreMVC5.Controllers
{
    [Route("news")]
    public class NewsController : Controller
    {
        [Route("index")]
        public IActionResult Index()
        {
            return View();
        }
    }
}

Create View

In Views folder, create new views as below:

Home Views

In Views/Home folder, create new view named Index.cshtml as below:

@{
    Layout = "~/Views/Shared/_MyLayoutPage.cshtml";
}

<h2>Home Page</h2>

AboutUs Views

In Views/AboutUs folder, create new view named Index.cshtml as below:

@{
    Layout = "~/Views/Shared/_MyLayoutPage.cshtml";
}

@section head {
    <link href="~/css/style.css" rel="stylesheet" type="text/css" />
}

<h2 class="format">About Us Page</h2>




News Views

In Views/News folder, create new view named Index.cshtml as below:

@{
    Layout = "~/Views/Shared/_MyLayoutPage.cshtml";
}

<h2>News Page</h2>

Structure of ASP.NET Core MVC 5 Project




Run Application

Access Index action in Home controller with following url: http://localhost:49328

Output

Access Index action in AboutUs controller with following url: http://localhost:49328/AboutUs/Index

Output

Access Index action in News controller with following url: http://localhost:49328/News/Index

Output

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