Using VirtualQueryableCollectionView with an itemscontrol in UI for Silverlight

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Using VirtualQueryableCollectionView with an itemscontrol

16 Answers 131 Views

Data Virtualization

This is a migrated thread and some comments may be shown as answers.

16 Answers, 1 is accepted

answered on 04 May 2011, 08:03 AM

SilverlightApplication1.zip

Hi,

Very easy if your items control is virtualized. For example ListBox is exactly such ItemsControl - you can check the attached example application with ListBox bound to virtual collection of 1 million items.

Kind regards,
Vlad
the Telerik team

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answered on 04 May 2011, 08:33 AM

Hi Vlad,

Thanks for the very quick response. However if I try to put the RadUniformGrid in the Listbox ItemsPanel the app just hangs. Just put this in the MainPage.xaml in the same you attached

<ListBox ItemsSource="{Binding}" >

<ListBox.ItemTemplate>

<DataTemplate>

<TextBlock Text="{Binding ID}" />

</DataTemplate>

</ListBox.ItemTemplate>

<ListBox.ItemsPanel>

<ItemsPanelTemplate>

<Primitives:RadUniformGrid Columns="2" ChildrenFlow="Horizontal" VerticalAlignment="Top"/>

</ItemsPanelTemplate>

</ListBox.ItemsPanel>

</ListBox>

Thanks.
Ganesh

answered on 04 May 2011, 10:33 AM

Thanks.

In the sample project try and use this instead of ListBox

<ItemsControl ItemsSource="{Binding}" >

<ItemsControl.ItemTemplate>

<DataTemplate>

<TextBlock Text="{Binding ID}" />

</DataTemplate>

</ItemsControl.ItemTemplate>

<ItemsControl.ItemsPanel>

<ItemsPanelTemplate>

<VirtualizingStackPanel/>

</ItemsPanelTemplate>

</ItemsControl.ItemsPanel>

</ItemsControl>

Doesnt work either.

Cheers,
Ganesh

answered on 25 Sep 2012, 10:33 AM

SilverlightApplication1.zip

Hello,

I've attached an example project to illustrate you how to achieve your goal.

Regards,
Vlad
the Telerik team

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