UI Virtualization for Nested Listboxes in wpf

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Hi,
I have to create a control which lists all parent entities and each of these entities have thousands of children.
Right now i have listed these parent entities in a listbox and each of these listboxitems has an itemtemplate which contains a Listbox with thousands of Listboxitems.

The problem i face is memory consumption.
My application consumes atleast 1GB and crashes.
I am sure UI virtualization is the issue here. Whenever i explicitly hard code the height of both these listboxes UI Virtualization kicks in and the memobry consumption drops to just 200 MB.
I dont want to hard code the height of the listboxes. Can someone help me?

Posted 21-Oct-13 22:13pm

Tom George 19

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Pheonyx 22-Oct-13 4:35am

Could you not implement some sort of paging? So it only lists say 25% of the elements on the first page then as the user scrolls down, it retrieves additional entries?

Tom George 19 22-Oct-13 4:55am

Well.. I did'nt explore those options yet.. Would do that also now. Thanks

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