Remembering a visitor between pages

Pages do not remember each other by default. Session state gives one visitor a small store that lasts while they browse.

Store and read

// on one page
Session["userName"] = txtName.Text;

// on a later page
string who = Session["userName"] as string;

What to keep in mind

• Session belongs to one visitor, not to everyone.
• It ends when the session times out, so never treat it as permanent storage.
• Anything important belongs in a database, not in session.

With pages, input and memory in place, you can apply all of it in a worked shopping cart example.