ListBox ControlTemplate Example
Controls in Windows Presentation Foundation (WPF) have a ControlTemplate that contains the visual tree of that control. You can change the structure and appearance of a control by modifying the ControlTemplate of that control. There is no way to replace only part of the visual tree of a control; to change the visual tree of a control you must set the Template property of the control to its new and complete ControlTemplate.
This topic shows the ControlTemplate of the WPF ListBox control.
This topic contains the following sections.
- Prerequisites
- ListBox ControlTemplate Example
- Related Topics
Prerequisites
To run the examples in this topic, you should understand how to write WPF applications. For more information, see Get Started Using Windows Presentation Foundation. You should also understand how styles are used in WPF. For more information, see Styling and Templating.
ListBox ControlTemplate Example
While this example contains all of the elements that are defined in the ControlTemplate of a ListBox by default, the specific values should be thought of as examples.
<Style x:Key="{x:Type ListBox}" TargetType="ListBox">
<Setter Property="SnapsToDevicePixels" Value="true"/>
<Setter Property="OverridesDefaultStyle" Value="true"/>
<Setter Property="ScrollViewer.HorizontalScrollBarVisibility" Value="Auto"/>
<Setter Property="ScrollViewer.VerticalScrollBarVisibility" Value="Auto"/>
<Setter Property="ScrollViewer.CanContentScroll" Value="true"/>
<Setter Property="MinWidth" Value="120"/>
<Setter Property="MinHeight" Value="95"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="ListBox">
<Border
Name="Border"
Background="{StaticResource WindowBackgroundBrush}"
BorderBrush="{StaticResource SolidBorderBrush}"
BorderThickness="1"
CornerRadius="2">
<ScrollViewer
Margin="0"
Focusable="false">
<StackPanel Margin="2" IsItemsHost="True" />
</ScrollViewer>
</Border>
<ControlTemplate.Triggers>
<Trigger Property="IsEnabled" Value="false">
<Setter TargetName="Border" Property="Background"
Value="{StaticResource DisabledBackgroundBrush}" />
<Setter TargetName="Border" Property="BorderBrush"
Value="{StaticResource DisabledBorderBrush}" />
</Trigger>
<Trigger Property="IsGrouping" Value="true">
<Setter Property="ScrollViewer.CanContentScroll" Value="false"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
The above example uses the following resources:
<SolidColorBrush x:Key="WindowBackgroundBrush" Color="#FFF" />
...
<SolidColorBrush x:Key="SolidBorderBrush" Color="#888" />
...
<SolidColorBrush x:Key="DisabledBackgroundBrush" Color="#EEE" />
...
<SolidColorBrush x:Key="DisabledBorderBrush" Color="#AAA" />
For the complete sample, see Styling with ControlTemplates Sample.
See Also
Concepts
Guidelines for Designing Stylable Controls
ListBoxItem ControlTemplate Example