This new post will explain the ability to use the autocomplete box with more than 10 000 items in the list. It will result an unpleasant latency… It will freeze your user interface during seconds !
The silverlight solution
Solve the problem
We will use blend to speed up development and show the simplest way to produce this solution.
At this time you need to edit the general template (Edit a copy, not create a blank one) :
And edit the « ItemPanel » of your selector :
You must replace the « StackPanel » with a VirtualizingStackPanel:
At this point you mzy think you have finished but, if you run your solution, you will see it remains the latency.
Sources are available here