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iphone has 10 listbox entries at a time, it doesnt’ load all 10k entries and scroll them all at the same time. it adds one entry, and subtracts one entry at a time. so how do you do this in a wpf listbox? how do i make, say 20 listbox entries, and add one or two, and subtract the same amount? does data binding the listbox take care of this performance issue?
The ListBox WPF control uses a VirtualizingStackPanel by default, unless you change the ScrollViewer.CanContentScroll property false, in which case you get smooth scrolling in exchange for a loss of virtualization.