Session and cookie operations

1. Add a value to the session:

Session. Add ("provider", Doker. Website. appcode. Global. currentuser. username );

Obtain the value of IF (session ["provider"]! in the session. = NULL)
{
String provider = session ["provider"]. tostring ();
}

Delete Sessionsession. Abandon ();
Session. Clear ();

In the web. <sessionstate mode = "inproc" stateconnectionstring = "TCPIP = 127.0.0.1: 42424" sqlconnectionstring = "Data Source = 127.0.0.1; trusted_connection = yes "cookieless =" false "timeout =" 50 "/>

I use session to save user permissions. My system is a large file to be uploaded, usually 50 MB. Why is the local test session not lost, but put it on the server, when users upload large files, the system can easily exit? Hope you can help me solve the problem. Thank you! So I decided to change the cookie to save the user's permission!
2. Assign httpcookie acookie = new httpcookie ("provider") to the cookie ");
Acookie. value = Doker. Website. appcode. Global. currentuser. Username;
Acookie. expires = datetime. Now. adddays (1 );
Response. Cookies. Add (acookie );

Obtain the cookie value if (request. Cookies ["provider"]! = NULL)
{
String provider = server. htmlencode (request. Cookies ["provider"]. value );
}

Delete the cookie value httpcookie acookie;
String cookiename;
Int Limit = request. Cookies. count;
For (INT I = 0; I <limit; I ++)
{
Cookiename = request. Cookies [I]. Name;
Acookie = new httpcookie (cookiename );
Acookie. expires = datetime. Now. adddays (-1 );
Response. Cookies. Add (acookie );
}