How to create a combobox supporting data virtualization in wpf?

Question

I'm looking for a simple way to add data-virtualization support to WPF ComboBox?
How can I achieve that?

I tried to plug different collections to the ItemsSource property:
- https://www.codeproject.com/Articles/34405/WPF-Data-Virtualization
- https://alphachitech.wordpress.com/2015/01/31/virtualizing-observable-collection

But seems my ComboBox is displaying nothing, am I doing something wrong?

Are they supposed to work with any controls supporting ItemsSource property?

Have you done some research? – Quality Catalyst Feb 22 '17 at 21:16 — Quality Catalyst, Feb 22 '17 at 21:16
@QualityCatalyst yes I did, I'm editing the post. – Feb 22 '17 at 21:20 — , Feb 22 '17 at 21:20
Thumb up for this improvement. Thank you! – Quality Catalyst Feb 23 '17 at 01:10 — Quality Catalyst, Feb 23 '17 at 01:10

score 0 · Answer 1 · answered Feb 22 '17 at 21:32

You should set the ItemsPanel of the property to be a VirtualizingStackPanel.

<ComboBox VirtualizingPanel.IsVirtualizing="True" VirtualizingPanel.ScrollUnit="Pixel"
          VirtualizingPanel.VirtualizationMode="Recycling">
    <ComboBox.ItemsPanel>
        <ItemsPanelTemplate>
            <VirtualizingStackPanel/>
        </ItemsPanelTemplate>
    </ComboBox.ItemsPanel>
</ComboBox>

How to create a combobox supporting data virtualization in wpf?

1 Answers1