Paging in the list

Question

My second question in Windows Phone App 8.0

How can I achieve paging in the Long List container or any other container this is how I want to display

• Iteam Head 1

  • Item 1
  • Item 2
  • Item 3

• Item Head 2

  • Item 1
  • Item 2

  • Item 3

    Load Next-->

When user click Item Head 3 and Item Head 4 gets loaded. I do not want scrolling.

Is this possible?

Answer 1

Have a master List<model> of all items (or items you continually downloading).

Link your Item 1 (I would call it A) and your Item 2 (I would could it B) to the primary list. Keep track of the location of the Items location in the List with a control Index.

Item A and B should be an ObservableCollection<model>. When the user clicks on Load Next -> move the location Index by one (in either direction), clear the ObservableCollection<model> and repopulate based on the master List<model> this way when you update, the Screen UI element binding will also update.