State management

A new instance of the Web page class is created each time the page is posted to the server. In traditional Web programming, this would typically mean that all information associated with the page and the controls on the page would be lost with each round trip.

To overcome this inherent limitation of traditional Web programming, ASP.NET includes several options. These features are as follows:

• View state


• Control state


• Hidden fields


• Cookies


• Query strings


• Application state


• Session state


• Profile Properties

 

https://msdn.microsoft.com/en-us/library/75x4ha6s.aspx