Exemplo de ControlTemplate de ListView
Controles em Windows Presentation Foundation (WPF) têm um ControlTemplate que contém a árvore visual daquele controle. Você pode mudar a estrutura e a aparência de um controle modificando o ControlTemplate daquele controle. Não há forma de substituir apenas parte da árvore visual de um controle; para alterar a árvore visual de um controle você precisa definir a propriedade Template do controle como sua nova e completa ControlTemplate.
Esse tópico mostra o ControlTemplate do controle ListView WPF.
Este tópico contém as seguintes seções.
- Pré-requisitos
- Exemplo de ControlTemplate de ListView
- Tópicos relacionados
Pré-requisitos
Para rodar os exemplos deste tópico, você deve entender como escrever aplicações WPF. Para obter mais informações, consulte Getting Started with Windows Presentation Foundation. Você também deve entender como estilos são utilizados em WPF. Para obter mais informações, consulte Styling and Templating.
Exemplo de ControlTemplate de ListView
Although this example contains all of the elements that are defined in the ControlTemplate of a ListView by default, the specific values should be thought of as examples.
<Style x:Key="{x:Static GridView.GridViewScrollViewerStyleKey}"
TargetType="ScrollViewer">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="ScrollViewer">
<Grid Background="{TemplateBinding Background}">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*"/>
<ColumnDefinition Width="Auto"/>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="*"/>
<RowDefinition Height="Auto"/>
</Grid.RowDefinitions>
<DockPanel Margin="{TemplateBinding Padding}">
<ScrollViewer DockPanel.Dock="Top"
HorizontalScrollBarVisibility="Hidden"
VerticalScrollBarVisibility="Hidden"
Focusable="false">
<GridViewHeaderRowPresenter Margin="2,0,2,0"
Columns="{Binding Path=TemplatedParent.View.Columns,
RelativeSource={RelativeSource TemplatedParent}}"
ColumnHeaderContainerStyle="{Binding
Path=TemplatedParent.View.ColumnHeaderContainerStyle,
RelativeSource={RelativeSource TemplatedParent}}"
ColumnHeaderTemplate="{Binding
Path=TemplatedParent.View.ColumnHeaderTemplate,
RelativeSource={RelativeSource TemplatedParent}}"
ColumnHeaderTemplateSelector="{Binding
Path=TemplatedParent.View.ColumnHeaderTemplateSelector,
RelativeSource={RelativeSource TemplatedParent}}"
AllowsColumnReorder="{Binding
Path=TemplatedParent.View.AllowsColumnReorder,
RelativeSource={RelativeSource TemplatedParent}}"
ColumnHeaderContextMenu="{Binding
Path=TemplatedParent.View.ColumnHeaderContextMenu,
RelativeSource={RelativeSource TemplatedParent}}"
ColumnHeaderToolTip="{Binding
Path=TemplatedParent.View.ColumnHeaderToolTip,
RelativeSource={RelativeSource TemplatedParent}}"
SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
</ScrollViewer>
<ScrollContentPresenter Name="PART_ScrollContentPresenter"
KeyboardNavigation.DirectionalNavigation="Local"
CanContentScroll="True" CanHorizontallyScroll="False"
CanVerticallyScroll="False"/>
</DockPanel>
<ScrollBar Name="PART_HorizontalScrollBar"
Orientation="Horizontal"
Grid.Row="1"
Maximum="{TemplateBinding ScrollableWidth}"
ViewportSize="{TemplateBinding ViewportWidth}"
Value="{TemplateBinding HorizontalOffset}"
Visibility="{TemplateBinding ComputedHorizontalScrollBarVisibility}"/>
<ScrollBar Name="PART_VerticalScrollBar"
Grid.Column="1"
Maximum="{TemplateBinding ScrollableHeight}"
ViewportSize="{TemplateBinding ViewportHeight}"
Value="{TemplateBinding VerticalOffset}"
Visibility="{TemplateBinding ComputedVerticalScrollBarVisibility}"/>
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
<Style x:Key="GridViewColumnHeaderGripper" TargetType="Thumb">
<Setter Property="Width" Value="18"/>
<Setter Property="Background" Value="{StaticResource NormalBorderBrush}"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type Thumb}">
<Border Padding="{TemplateBinding Padding}"
Background="Transparent">
<Rectangle HorizontalAlignment="Center"
Width="1"
Fill="{TemplateBinding Background}"/>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
<Style x:Key="{x:Type GridViewColumnHeader}"
TargetType="GridViewColumnHeader">
<Setter Property="HorizontalContentAlignment" Value="Center"/>
<Setter Property="VerticalContentAlignment" Value="Center"/>
<Setter Property="Foreground"
Value="{DynamicResource {x:Static SystemColors.ControlTextBrushKey}}"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="GridViewColumnHeader">
<Grid>
<Border Name="HeaderBorder"
BorderThickness="0,1,0,1"
BorderBrush="{StaticResource NormalBorderBrush}"
Background="{StaticResource LightBrush}"
Padding="2,0,2,0">
<ContentPresenter Name="HeaderContent"
Margin="0,0,0,1"
VerticalAlignment="{TemplateBinding VerticalContentAlignment}"
HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
RecognizesAccessKey="True"
SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
</Border>
<Thumb x:Name="PART_HeaderGripper"
HorizontalAlignment="Right"
Margin="0,0,-9,0"
Style="{StaticResource GridViewColumnHeaderGripper}"/>
</Grid>
<ControlTemplate.Triggers>
<Trigger Property="IsMouseOver" Value="true">
<Setter TargetName="HeaderBorder"
Property="Background" Value="{StaticResource NormalBrush}"/>
</Trigger>
<Trigger Property="IsPressed" Value="true">
<Setter TargetName="HeaderBorder"
Property="Background" Value="{StaticResource PressedBrush}"/>
<Setter TargetName="HeaderContent"
Property="Margin" Value="1,1,0,0"/>
</Trigger>
<Trigger Property="IsEnabled" Value="false">
<Setter Property="Foreground"
Value="{DynamicResource {x:Static SystemColors.GrayTextBrushKey}}"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
<Style.Triggers>
<Trigger Property="Role" Value="Floating">
<Setter Property="Opacity" Value="0.7"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="GridViewColumnHeader">
<Canvas Name="PART_FloatingHeaderCanvas">
<Rectangle Fill="#60000000"
Width="{TemplateBinding ActualWidth}"
Height="{TemplateBinding ActualHeight}"/>
</Canvas>
</ControlTemplate>
</Setter.Value>
</Setter>
</Trigger>
<Trigger Property="Role" Value="Padding">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="GridViewColumnHeader">
<Border Name="HeaderBorder"
BorderThickness="0,1,0,1"
BorderBrush="{StaticResource NormalBorderBrush}"
Background="{StaticResource LightBrush}"/>
</ControlTemplate>
</Setter.Value>
</Setter>
</Trigger>
</Style.Triggers>
</Style>
<Style x:Key="{x:Type ListView}" TargetType="ListView">
<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="VerticalContentAlignment" Value="Center"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="ListView">
<Border Name="Border"
BorderThickness="1"
BorderBrush="{StaticResource SolidBorderBrush}"
Background="{StaticResource WindowBackgroundBrush}">
<ScrollViewer Style="{DynamicResource
{x:Static GridView.GridViewScrollViewerStyleKey}}">
<ItemsPresenter />
</ScrollViewer>
</Border>
<ControlTemplate.Triggers>
<Trigger Property="IsGrouping"
Value="true">
<Setter Property="ScrollViewer.CanContentScroll"
Value="false"/>
</Trigger>
<Trigger Property="IsEnabled"
Value="false">
<Setter TargetName="Border"
Property="Background"
Value="{StaticResource DisabledBorderBrush}"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
O exemplo anterior utiliza um ou mais dos seguintes recursos:
<!-- Fill Brushes -->
<LinearGradientBrush x:Key="NormalBrush" StartPoint="0,0" EndPoint="0,1">
<GradientBrush.GradientStops>
<GradientStopCollection>
<GradientStop Color="#FFF" Offset="0.0"/>
<GradientStop Color="#CCC" Offset="1.0"/>
</GradientStopCollection>
</GradientBrush.GradientStops>
</LinearGradientBrush>
<LinearGradientBrush x:Key="HorizontalNormalBrush" StartPoint="0,0" EndPoint="1,0">
<GradientBrush.GradientStops>
<GradientStopCollection>
<GradientStop Color="#FFF" Offset="0.0"/>
<GradientStop Color="#CCC" Offset="1.0"/>
</GradientStopCollection>
</GradientBrush.GradientStops>
</LinearGradientBrush>
<LinearGradientBrush x:Key="LightBrush" StartPoint="0,0" EndPoint="0,1">
<GradientBrush.GradientStops>
<GradientStopCollection>
<GradientStop Color="#FFF" Offset="0.0"/>
<GradientStop Color="#EEE" Offset="1.0"/>
</GradientStopCollection>
</GradientBrush.GradientStops>
</LinearGradientBrush>
<LinearGradientBrush x:Key="HorizontalLightBrush" StartPoint="0,0" EndPoint="1,0">
<GradientBrush.GradientStops>
<GradientStopCollection>
<GradientStop Color="#FFF" Offset="0.0"/>
<GradientStop Color="#EEE" Offset="1.0"/>
</GradientStopCollection>
</GradientBrush.GradientStops>
</LinearGradientBrush>
<LinearGradientBrush x:Key="DarkBrush" StartPoint="0,0" EndPoint="0,1">
<GradientBrush.GradientStops>
<GradientStopCollection>
<GradientStop Color="#FFF" Offset="0.0"/>
<GradientStop Color="#AAA" Offset="1.0"/>
</GradientStopCollection>
</GradientBrush.GradientStops>
</LinearGradientBrush>
<LinearGradientBrush x:Key="PressedBrush" StartPoint="0,0" EndPoint="0,1">
<GradientBrush.GradientStops>
<GradientStopCollection>
<GradientStop Color="#BBB" Offset="0.0"/>
<GradientStop Color="#EEE" Offset="0.1"/>
<GradientStop Color="#EEE" Offset="0.9"/>
<GradientStop Color="#FFF" Offset="1.0"/>
</GradientStopCollection>
</GradientBrush.GradientStops>
</LinearGradientBrush>
<SolidColorBrush x:Key="DisabledForegroundBrush" Color="#888" />
<SolidColorBrush x:Key="DisabledBackgroundBrush" Color="#EEE" />
<SolidColorBrush x:Key="WindowBackgroundBrush" Color="#FFF" />
<SolidColorBrush x:Key="SelectedBackgroundBrush" Color="#DDD" />
<!-- Border Brushes -->
<LinearGradientBrush x:Key="NormalBorderBrush" StartPoint="0,0" EndPoint="0,1">
<GradientBrush.GradientStops>
<GradientStopCollection>
<GradientStop Color="#CCC" Offset="0.0"/>
<GradientStop Color="#444" Offset="1.0"/>
</GradientStopCollection>
</GradientBrush.GradientStops>
</LinearGradientBrush>
<LinearGradientBrush x:Key="HorizontalNormalBorderBrush" StartPoint="0,0" EndPoint="1,0">
<GradientBrush.GradientStops>
<GradientStopCollection>
<GradientStop Color="#CCC" Offset="0.0"/>
<GradientStop Color="#444" Offset="1.0"/>
</GradientStopCollection>
</GradientBrush.GradientStops>
</LinearGradientBrush>
<LinearGradientBrush x:Key="DefaultedBorderBrush" StartPoint="0,0" EndPoint="0,1">
<GradientBrush.GradientStops>
<GradientStopCollection>
<GradientStop Color="#777" Offset="0.0"/>
<GradientStop Color="#000" Offset="1.0"/>
</GradientStopCollection>
</GradientBrush.GradientStops>
</LinearGradientBrush>
<LinearGradientBrush x:Key="PressedBorderBrush" StartPoint="0,0" EndPoint="0,1">
<GradientBrush.GradientStops>
<GradientStopCollection>
<GradientStop Color="#444" Offset="0.0"/>
<GradientStop Color="#888" Offset="1.0"/>
</GradientStopCollection>
</GradientBrush.GradientStops>
</LinearGradientBrush>
<SolidColorBrush x:Key="DisabledBorderBrush" Color="#AAA" />
<SolidColorBrush x:Key="SolidBorderBrush" Color="#888" />
<SolidColorBrush x:Key="LightBorderBrush" Color="#AAA" />
<!-- Miscellaneous Brushes -->
<SolidColorBrush x:Key="GlyphBrush" Color="#444" />
<SolidColorBrush x:Key="LightColorBrush" Color="#DDD" />
For the complete sample, see Estilo com ControlTemplates exemplo.
Consulte também
Conceitos
Exemplo de ControlTemplate de ListViewItem
Diretrizes para criação de controles estilizados