Session in ASP.NET Core MVC

Question

I am migrating an ASP.NET MVC application to ASP.NET Core MVC.

In ASP.NET MVC, I am using some Session variables to store or get values like:

Session["UserID"] = user.UserName;
Session["Role"] = role[0].ROLE_DESCRIPTION;
ViewData["LEVEL"] = Session["LEVEL"];

But after converting, I get an error:

The name 'Session' does not exist in the current context

Also, I need to have replacement for this as well in the .cshtml file:

var UserName = "@Session["Name"]";

Is there any other method in ASP.NET Core MVC to store or get values on those variables without changing the behavior?

Does this answer your question? How to store and retrieve objects in Session state in ASP.NET Core 2.x? — Rajesh G
– Rajesh G, Commented Feb 10, 2022 at 19:41
In addition to the previously asked SO questions, check MSDN Session and state management in ASP.NET Core — Metro Smurf
– Metro Smurf, Commented Feb 11, 2022 at 0:22
Is it possible to get and set boolean value from HttpContext.Session. for this condition check if (Convert.ToBoolean(Session["IsSO"]) == true) — user18048414
– user18048414, Commented Feb 11, 2022 at 6:36
Is there any replacement for Session.Clear() in ASP.NET Core MVC? — user18048414
– user18048414, Commented Feb 11, 2022 at 9:38

Xinran Shen · Accepted Answer · 2022-02-11 06:22:29Z

8

You need to add session middleware in your configuration file

public void ConfigureServices(IServiceCollection services)  
{  
     //........
    services.AddDistributedMemoryCache();  
    services.AddSession(options => {  
        options.IdleTimeout = TimeSpan.FromMinutes(1);//You can set Time   
    });  
    services.AddMvc();  
} 

public void ConfigureServices(IServiceCollection services)
{
    //......
    app.UseSession();
    //......
}

Then in your controller, you can

//set session 

HttpContext.Session.SetString(SessionName, "Jarvik");  
HttpContext.Session.SetInt32(SessionAge, 24);

//get session

ViewBag.Name = HttpContext.Session.GetString(SessionName);  
ViewBag.Age = HttpContext.Session.GetInt32(SessionAge);

answered Feb 11, 2022 at 6:22

Xinran Shen

10.2k2 gold badges7 silver badges18 bronze badges

Sign up to request clarification or add additional context in comments.

4 Comments

user18048414 Over a year ago

How can we get and set boolean value from HttpContext.Session.

Xinran Shen Over a year ago

I'm afraid you can't set boolean in HttpContext.Session directly, you can try HttpContext.Session.SetString("A", "true"); bool result = Convert.ToBoolean(HttpContext.Session.GetString("A"));

user18048414 Over a year ago

Thanks. Similarly can we set date as HttpContext.Session.SetString(SessionKeyDate, Start_Date.Date.ToString());

user18048414 Over a year ago

Can you help what can be given for "@Session["Name"]"; in .Net core.

Collectives™ on Stack Overflow

Session in ASP.NET Core MVC

1 Answer 1

4 Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

4 Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related