Sometime you may want to save the values present in your page while switching from one page to another page, sometime you may want to store the values while switching application between foreground and background. When you are switching from one application to the other, the first app enters into the deactivated mode. At that time you can store the current state of the page and display them back again by retrieving those values from page state once you return to the first app. In this chapter we will discuss about the page state. This will help you to know the basics about it, very good for a beginner to jump start with it.