In XAML file, when setting SelectionMode is "Multiple" or "Extended", multi-selection doesn't work. I build moonlight with mxap command.


<UserControl x:Class="ListBoxSample.Page"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Width="400" Height="300">
    <Grid x:Name="LayoutRoot" Background="White">
        <TextBlock x:Name="textBlock" Height="30" Margin="50,50,0,0" VerticalAlignment="Top"/>
        <ListBox Name="listBox" Height="200" Margin="50,100,150,0" VerticalAlignment="Top" SelectionMode="Extended">
           <ListBoxItem Content="Item 1"/>
           <ListBoxItem Content="Item 2"/>
           <ListBoxItem Content="Item 3"/>
        </ListBox>
    </Grid>
</UserControl>