How Can I Enable VirtualizingStackPanel In My Control (Multicolumn Combobox) ?

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Hi everybody,
I create custom user control (Multicolumn combobox) in wpf for select tabular items.
but, that is very slow to show many items. i try to improve performance with using VirtualizingStackPanel in combobox style, but virtualizing not work!

My code is here:
MultiColumnComboBox.zip

Please anyone can, help me by review my code
Tip: you can find default multicolumn combobox style in this path:
MySourceCode > Themes > Generic.xaml

Posted 21-Jul-14 18:55pm

Moshtaba

Updated 21-Jul-14 22:07pm

v3

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Moshtaba 23-Jul-14 7:49am

no any idea ?

1 solution

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Moshtaba · Accepted Answer · 2014-07-27T05:12:00

Solution 1

I found solution myself :)

The solution is : explicit set GridViewRowPresenter height in combobox style.

Posted 27-Jul-14 5:12am

Moshtaba