关于ListBox的一些绑定

关于ListBox的一些绑定

1. IsSelected

           <ListBox Grid.Column="1"  ItemsSource="{Binding MediaList}" SelectedIndex="0" >
               <ListBox.ItemTemplate>
                   <DataTemplate>
                       <Grid Margin="5">
                           <Image Source="{Binding Thumbnail}" Width="Auto" Height="50"/>
                           <Border x:Name="selectedBorder" IsHitTestVisible="False" BorderBrush="{DynamicResource PrimaryBrush}" BorderThickness="5"/>
                       </Grid>
                       <DataTemplate.Triggers>
                           <DataTrigger Binding="{Binding IsSelected, RelativeSource={RelativeSource AncestorType=ListBoxItem}}" Value="True">
                               <Setter TargetName="selectedBorder" Property="Visibility" Value="Visible" />
                           </DataTrigger>
                           <DataTrigger Binding="{Binding IsSelected, RelativeSource={RelativeSource AncestorType=ListBoxItem}}" Value="False">
                               <Setter TargetName="selectedBorder" Property="Visibility" Value="Collapsed" />
                           </DataTrigger>
                       </DataTemplate.Triggers>
                   </DataTemplate>
               </ListBox.ItemTemplate>
           </ListBox>

   通过绑定IsSelected，来显示或者隐藏当前子项的边框。