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 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();
services.AddSession();
}
public void Configure(IApplicationBuilder app, IHostingEnvironment env)
{
if (env.IsDevelopment())
{
app.UseDeveloperExceptionPage();
}
app.UseSession();
app.UseStaticFiles();
app.UseRouting();
app.UseEndpoints(endpoints =>
{
endpoints.MapControllerRoute(
name: "default",
pattern: "{controller=Demo}/{action=Index}/{id?}");
});
}
}
}
Create Controller
Create new folder named Controllers. In this folder, create new controller named AccountController.cs as below:
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
namespace LearnASPNETCoreMVC5.Controllers
{
[Route("account")]
public class AccountController : Controller
{
[Route("")]
[Route("index")]
[Route("~/")]
public IActionResult Index()
{
return View();
}
[Route("login")]
[HttpPost]
public IActionResult Login(string username, string password)
{
if (username != null && password != null && username.Equals("acc1") && password.Equals("123"))
{
HttpContext.Session.SetString("username", username);
return View("Success");
}
else
{
ViewBag.error = "Invalid Account";
return View("Index");
}
}
[Route("logout")]
[HttpGet]
public IActionResult Logout()
{
HttpContext.Session.Remove("username");
return RedirectToAction("Index");
}
}
}
Create View
Create new folder named Views. In this folder, create new folder named Account and add new views as below:
Index View
In Account folder, create new view named Index.cshtml as below:
<html>
<head>
<meta name="viewport" content="width=device-width" />
<title>Index</title>
</head>
<body>
<h3>Login Page</h3>
@ViewBag.error
<form method="post" asp-controller="account" asp-action="login">
<table border="0" cellpadding="2" cellspacing="2">
<tr>
<td>Username</td>
<td><input type="text" name="username"></td>
</tr>
<tr>
<td>Password</td>
<td><input type="password" name="password"></td>
</tr>
<tr>
<td> </td>
<td><input type="submit" value="Login"></td>
</tr>
</table>
</form>
</body>
</html>
Success View
In Account folder, create new view named Success.cshtml as below:
@using Microsoft.AspNetCore.Http;
<html>
<head>
<meta name="viewport" content="width=device-width" />
<title>Success</title>
</head>
<body>
<h3>Success Page</h3>
Welcome @Context.Session.GetString("username")
<br>
<a asp-controller="account" asp-action="logout">Logout</a>
</body>
</html>
Create Razor View Imports
Select Views folder and right click to select Add\New Item Menu
Select Web\ASP.NET in left side. Select Razor View Imports item and click Add button to Finish
In _ViewImports.cshtml file and TagHelpers library as below:
@addTagHelper *, Microsoft.AspNetCore.Mvc.TagHelpers
Structure of ASP.NET Core MVC 5 Project
Run Application
Access Index action in Account controller with following url: http://localhost:48982/Account/Index
Output
Test with invalid account is username: aa and password: 123
Output
Test with valid account is username: acc1 and password: 123.
Output
Click logout link from success page to remove session and open login page again
Output