Question

I am working in a project in ASP.NET.

I want to cache the username for the first time when the user logs in. E.g: If the current user is logged in and visiting a particular page for the first time, there will be a popup window display, otherwise nothing happens.

The username should be stored in the client browser and remain valid until the user closes the browser.

My question is, what is the best approach of doing this?

Any limitations if I am using ASP.Net Cache to store the username?
For example:

Cache["myCache"] = username;

and remove the item from the cache when page loads for the first time.

if (!Page.IsPostBack)
{
     Cache.Remove("myCache");
}

This is open for any comments. Thank you in advance.

Answer 1

Use a HttpCookie and set the expiration as needed:

If you do not set the cookie’s expiration, the cookie is created but
it is not stored on the user’s hard disk. Instead, the cookie is
maintained as part of the user’s session information. When the user
closes the browser, the cookie is discarded.

ASP.NET Cookies Overview

//write
HttpCookie myCookie = new HttpCookie("UserSettings");
myCookie["Font"] = "Arial";
myCookie["Color"] = "Blue";
//myCookie.Expires = DateTime.Now.AddDays(1d);
Response.Cookies.Add(myCookie);

//read
if (Request.Cookies["UserSettings"] != null)
{
    string userSettings;
    if (Request.Cookies["UserSettings"]["Font"] != null)
    { userSettings = Request.Cookies["UserSettings"]["Font"]; }
}

How to: Write a Cookie

How to: Read a Cookie