Comments on: WPF ListBox Virtualization http://blog.bignickolson.com/2009/05/02/wpf-listbox-virtualization/ ...my blog on what I'm learning, working, or playing with in technology Sun, 05 Sep 2010 14:19:49 +0000 http://wordpress.org/?v=2.7.1 hourly 1 By: Nick http://blog.bignickolson.com/2009/05/02/wpf-listbox-virtualization/comment-page-1/#comment-270 Nick Mon, 15 Feb 2010 18:52:45 +0000 http://blog.bignickolson.com/2009/05/02/wpf-listbox-virtualization/#comment-270 Unfortunately, some of the stuff I do is under NDA for clients, but the concept is simple. Have an ObservableCollection<ObservableCollection<YourItem>> and bind the list of lists to your ListBox. Then create two datatemplates, one for showing the list of items in each row as a ItemsControl or something similar, and the second to actually template the individual items. I wrote a class to abstract some logic that you could pass in a collection and a number of "columns" and it would split up a list for you into a list of lists automatically, but it's certainly doable manually for small scenarios Unfortunately, some of the stuff I do is under NDA for clients, but the concept is simple. Have an ObservableCollection<ObservableCollection<YourItem>> and bind the list of lists to your ListBox. Then create two datatemplates, one for showing the list of items in each row as a ItemsControl or something similar, and the second to actually template the individual items.

I wrote a class to abstract some logic that you could pass in a collection and a number of “columns” and it would split up a list for you into a list of lists automatically, but it’s certainly doable manually for small scenarios

]]> By: Brian Vallelunga http://blog.bignickolson.com/2009/05/02/wpf-listbox-virtualization/comment-page-1/#comment-269 Brian Vallelunga Mon, 15 Feb 2010 18:35:32 +0000 http://blog.bignickolson.com/2009/05/02/wpf-listbox-virtualization/#comment-269 I'm doing the exact same thing you are with a little personal application and found your post on this subject. Any chance you'll release the code to your multi-column view you created? I’m doing the exact same thing you are with a little personal application and found your post on this subject.

Any chance you’ll release the code to your multi-column view you created?

]]> By: Sergey http://blog.bignickolson.com/2009/05/02/wpf-listbox-virtualization/comment-page-1/#comment-203 Sergey Sun, 03 May 2009 13:54:26 +0000 http://blog.bignickolson.com/2009/05/02/wpf-listbox-virtualization/#comment-203 If ListBox is inside a vertically unconstrained control, your virtualization will dissapear because ListBox thinks it has unlimited amount of space for its rows. Example: put listbox inside vertical stack panel. If ListBox is inside a vertically unconstrained control, your virtualization will dissapear because ListBox thinks it has unlimited amount of space for its rows. Example: put listbox inside vertical stack panel.

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