session why we are using it

pritisha das

want to know the basic work of it

3 Replies

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Jaish Mathews8y ago
Already covered by multiple people below. But here just to explain using web terms. Web applications using http/s protocol for communication. This protocol is stateless and so won't keep the data state between submissions. So you need to manually keep the data state in between submissions. Session is one of the methods for it. Windows/Desktop application don't need it as it keeps its state by default.
Cynthia Sathuragiri8y ago
1. Session is for storing user specific information for a limited period of time.
2. For a web application user's session begins at the first time
they visit the site and ends after log out or after some time the user has no longer made any requests.
3. From the user session state the web server identifies that the request is from the same browser and allows to persist variable values till that session get expires
Jignesh Kumar8y ago
Session is used for maintain user data throughout same user request.

i.e. You logedin with your user name and your movening to another page but if you store your user name in session then you able to access your user name accross pages.

session["UserName"] = txtusername.text;

you can access above session like this

if(session["UserName"] != null)
{
string userName = session["UserName"].tostring();
}

Please find below link for session back ground.

https://www.c-sharpcorner.com/UploadFile/225740/introduction-of-session-in-Asp-Net/