How to use session in ASP.NET Core 2.0

May 28 2020 by Admin

In this article, we will explain how to use a session in ASP.NET Core 2.0 with an example and sample code.

In this article, we will explain how to use a session in ASP.NET Core 2.0 with an example and sample code. The Session state server-side app code. session state supports several storage options for session variables. the session is a state that is used to store and retrieve the values of a user. The session is a server-side control, primarily used to manage the user login but it is used for user session management as well.

Required Namespaces

you will need to use the following namespaces.

using Microsoft.AspNetCore.Http;

using Microsoft.AspNetCore.Mvc;

using upload_web.Models;

HTML

In the html we have taken Textbox for username and password . When the click on login button save the username in the session .

@model upload_web.Models.Login

<html>

<head>

<title>How to use session in ASP.NET Core 2.0 </title>

</head>

<body>

<div>

@using (Html.BeginForm("Index", "Login", FormMethod.Post))

{<table>

<tr>

<td>UserName</td>

<td>

@Html.EditorFor(model => model.UserName, new { htmlAttributes = new { @class = "form-control" } })

@Html.ValidationMessageFor(model => model.UserName, "", new { @class = "text-danger" })

<br />

</td>

</tr>

<tr>

<td>Password</td>

<td>

@Html.EditorFor(model => model.Password, new { htmlAttributes = new { @class = "form-control", @type = "password" } })

@Html.ValidationMessageFor(model => model.Password, "", new { @class = "text-danger" })

<br />

</td>

</tr>

<tr>

<td>

<br />

</td>

</tr>

</table>

}

</div>

</body>

</html>

Model

public class Login

{

public int LoginId { get; set; }

public string UserName { get; set; }

public string Password { get; set; }

public DateTime CreatedDate { get; set; }

}

Controller

In the Controller we are storing the Username in the session.

public class LoginController : Controller

{

[HttpGet]

public IActionResult Index()

{

return View();

}

[HttpPost]

public IActionResult Index(Login lng)

{

HttpContext.Session.SetString("userName", lng.UserName);

return View("UserView");

}

public IActionResult UserView()

{

return View();

}

UserView.cshtml

We are get the session from user session variable.

@using Microsoft.AspNetCore.Http;

@inject IHttpContextAccessor HttpContextAccessor

<html>

<head>

<title>Use Session Value</title>

</head>

<body>

UserName: @HttpContextAccessor.HttpContext.Session.GetString("userName")

</body>

</html>

Startup

We have provided Startup file below.

public class Startup

{

public Startup(IConfiguration configuration)

{

Configuration = configuration;

}

public IConfiguration Configuration { get; }

public void ConfigureServices(IServiceCollection services)

{

services.Configure<CookiePolicyOptions>(options =>

{

options.CheckConsentNeeded = context => true;

options.MinimumSameSitePolicy = SameSiteMode.None;

});

services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_2);

// Added below Name for session Use

services.AddMvc().AddSessionStateTempDataProvider();

services.AddSession();

services.AddHttpContextAccessor();

}

public void Configure(IApplicationBuilder app, IHostingEnvironment env)

{

if (env.IsDevelopment())

{

app.UseDeveloperExceptionPage();

}

else

{

app.UseExceptionHandler("/Home/Error");

app.UseHsts();

}

// Added below Name for session Use

app.UseSession();

app.UseHttpsRedirection();

app.UseStaticFiles();

app.UseCookiePolicy();

app.UseMvc(routes =>

{

routes.MapRoute(

name: "default",

template: "{controller=Login}/{action=Index}/{id?}");

});

}

Screenshot

How to display session variable into View in ASP.NET Core

session ASP.NET Core

Home > MVC > How to use session in ASP.NET Core 2.0

How to use session in ASP.NET Core 2.0

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Home > MVC > How to use session in ASP.NET Core 2.0

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