Basic listbox template
<ListBox Height="200"
x:Name="lstBox"
ScrollViewer.VerticalScrollBarVisibility="Visible"
VirtualizingStackPanel.IsVirtualizing="True" VirtualizingStackPanel.VirtualizationMode="Recycling" VirtualizingStackPanel.CacheLength="2,3"
VirtualizingStackPanel.CacheLengthUnit="Page"
ItemTemplate="{StaticResource DataTemplater}"
ItemsSource="{Binding Source={StaticResource SearchedResults}}"
SelectedItem="{Binding CurrentItem}"
IsSynchronizedWithCurrentItem="True">
<ListBox.Template>
<ControlTemplate TargetType="{x:Type ItemsControl}">
<ScrollViewer >
<ItemsPresenter />
</ScrollViewer>
</ControlTemplate>
</ListBox.Template>
<ListBox.ItemsPanel>
<ItemsPanelTemplate>
<VirtualizingStackPanel ScrollUnit="Pixel" Orientation="Vertical" VirtualizationMode="Recycling" IsContainerVirtualizable="True" IsVirtualizing="True" IsItemsHost="True"/>
</ItemsPanelTemplate>
</ListBox.ItemsPanel>
</ListBox>
DataTemplater item template contains a stack panel with bound controls.Binding source is a data-table from data-set.
The problem here is virtualization not working, because I had a C# code lookup specified in the item template and that code is getting hit for all items in data table and not only for visible items?
How can I resolve this issue?
