ListView – styly a šablony

  • Článek

Toto téma popisuje styly a šablony ListView ovládacího prvku. Výchozí nastavení ControlTemplate můžete upravit tak, aby ovládací prvek získal jedinečný vzhled. Další informace naleznete v tématu Vytvoření šablony pro ovládací prvek.

ListView – části

Ovládací ListView prvek nemá žádné pojmenované části.

Při vytváření šablony ControlTemplate pro šablonu ListViewmůže obsahovat uvnitř ItemsPresenter objektu ScrollViewer. (Zobrazí ItemsPresenter každou položku v ListViewovládacím prvku ; ScrollViewer umožňuje posouvání v ovládacím prvku). ItemsPresenter Pokud není přímým dítětem ScrollViewer, musíte dát ItemsPresenter jméno, ItemsPresenter.

Stavy ListView

Následující tabulka uvádí vizuální stavy ListView ovládacího prvku.

Název visualstate Název skupiny VisualStateGroup Popis
Platné ValidationStates Ovládací prvek používá Validation třídu a připojená Validation.HasError vlastnost je false.
Neplatný fokus ValidationStates Připojená Validation.HasError vlastnost má true ovládací prvek fokus.
InvalidUnfocused ValidationStates Připojená Validation.HasError vlastnost má true ovládací prvek nemá fokus.

ListViewItem – části

Ovládací ListViewItem prvek nemá žádné pojmenované části.

Stavy ListViewItem

Následující tabulka uvádí stavy ListViewItem ovládacího prvku.

Název visualstate Název skupiny VisualStateGroup Popis
Normální CommonStates Výchozí stav.
Disabled CommonStates Ovládací prvek je zakázaný.
Mouseover CommonStates Ukazatel myši je nad ovládacím ComboBox prvku.
Focused FocusStates Ovládací prvek má fokus.
Rozostřený FocusStates Ovládací prvek nemá fokus.
Selected SelectionStates Položka je aktuálně vybraná.
Nevybráno SelectionStates Položka není vybrána.
SelectedUnfocused SelectionStates Položka je vybraná, ale nemá fokus.
Platné ValidationStates Ovládací prvek používá Validation třídu a připojená Validation.HasError vlastnost je false.
Neplatný fokus ValidationStates Připojená Validation.HasError vlastnost má true ovládací prvek fokus.
InvalidUnfocused ValidationStates Připojená Validation.HasError vlastnost má true ovládací prvek nemá fokus.

Příklady ovládacích prvků ListView

Následující příklad ukazuje, jak definovat ControlTemplate pro ListView ovládací prvek a jeho přidružené typy.

<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">
    <Setter.Value>
      <LinearGradientBrush StartPoint="0,0"
                           EndPoint="0,1">
        <LinearGradientBrush.GradientStops>
          <GradientStopCollection>
            <GradientStop Color="{DynamicResource BorderLightColor}"
                          Offset="0.0" />
            <GradientStop Color="{DynamicResource BorderDarkColor}"
                          Offset="1.0" />
          </GradientStopCollection>
        </LinearGradientBrush.GradientStops>
      </LinearGradientBrush>
    </Setter.Value>
  </Setter>
  <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>
  <Setter Property="BorderBrush">
    <Setter.Value>
      <LinearGradientBrush EndPoint="0.5,1"
                           StartPoint="0.5,0">
        <GradientStop Color="Black"
                      Offset="0" />
        <GradientStop Color="White"
                      Offset="1" />
      </LinearGradientBrush>
    </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>
          <VisualStateManager.VisualStateGroups>
            <VisualStateGroup x:Name="CommonStates">
              <VisualState x:Name="Normal" />
              <VisualState x:Name="MouseOver">
                <Storyboard>
                  <ColorAnimationUsingKeyFrames Storyboard.TargetProperty="(Panel.Background).
                    (GradientBrush.GradientStops)[1].(GradientStop.Color)"
                                                Storyboard.TargetName="HeaderBorder">
                    <EasingColorKeyFrame KeyTime="0"
                                         Value="{StaticResource ControlMouseOverColor}" />
                  </ColorAnimationUsingKeyFrames>
                </Storyboard>
              </VisualState>
              <VisualState x:Name="Pressed" />
              <VisualState x:Name="Disabled" />
            </VisualStateGroup>
          </VisualStateManager.VisualStateGroups>
          <Border x:Name="HeaderBorder"
                  BorderThickness="0,1,0,1"
                  Padding="2,0,2,0">
            <Border.BorderBrush>
              <LinearGradientBrush StartPoint="0,0"
                                   EndPoint="0,1">
                <LinearGradientBrush.GradientStops>
                  <GradientStopCollection>
                    <GradientStop Color="{DynamicResource BorderLightColor}"
                                  Offset="0.0" />
                    <GradientStop Color="{DynamicResource BorderDarkColor}"
                                  Offset="1.0" />
                  </GradientStopCollection>
                </LinearGradientBrush.GradientStops>
              </LinearGradientBrush>

            </Border.BorderBrush>
            <Border.Background>

              <LinearGradientBrush StartPoint="0,0"
                                   EndPoint="0,1">
                <LinearGradientBrush.GradientStops>
                  <GradientStopCollection>
                    <GradientStop Color="{DynamicResource ControlLightColor}"
                                  Offset="0.0" />
                    <GradientStop Color="{DynamicResource ControlMediumColor}"
                                  Offset="1.0" />
                  </GradientStopCollection>
                </LinearGradientBrush.GradientStops>
              </LinearGradientBrush>

            </Border.Background>
            <ContentPresenter x:Name="HeaderContent"
                              Margin="0,0,0,1"
                              RecognizesAccessKey="True"
                              VerticalAlignment="{TemplateBinding VerticalContentAlignment}"
                              HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
                              SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
          </Border>
          <Thumb x:Name="PART_HeaderGripper"
                 HorizontalAlignment="Right"
                 Margin="0,0,-9,0"
                 Style="{StaticResource GridViewColumnHeaderGripper}" />
        </Grid>
      </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">
              <Border.Background>
                <SolidColorBrush Color="{DynamicResource ControlLightColor}" />
              </Border.Background>
              <Border.BorderBrush>
                <LinearGradientBrush StartPoint="0,0"
                                     EndPoint="0,1">
                  <LinearGradientBrush.GradientStops>
                    <GradientStopCollection>
                      <GradientStop Color="{DynamicResource BorderLightColor}"
                                    Offset="0.0" />
                      <GradientStop Color="{DynamicResource BorderDarkColor}"
                                    Offset="1.0" />
                    </GradientStopCollection>
                  </LinearGradientBrush.GradientStops>
                </LinearGradientBrush>
              </Border.BorderBrush>
            </Border>
          </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">
          <Border.Background>
            <SolidColorBrush Color="{StaticResource ControlLightColor}" />
          </Border.Background>
          <Border.BorderBrush>
            <SolidColorBrush Color="{StaticResource BorderMediumColor}" />
          </Border.BorderBrush>
          <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">
              <Setter.Value>
                <SolidColorBrush Color="{DynamicResource DisabledBorderLightColor}" />
              </Setter.Value>
            </Setter>
          </Trigger>
        </ControlTemplate.Triggers>
      </ControlTemplate>
    </Setter.Value>
  </Setter>
</Style>

<Style x:Key="{x:Type ListViewItem}"
       TargetType="ListViewItem">
  <Setter Property="SnapsToDevicePixels"
          Value="true" />
  <Setter Property="OverridesDefaultStyle"
          Value="true" />
  <Setter Property="Template">
    <Setter.Value>
      <ControlTemplate TargetType="ListBoxItem">
        <Border x:Name="Border"
                Padding="2"
                SnapsToDevicePixels="true"
                Background="Transparent">
          <VisualStateManager.VisualStateGroups>
            <VisualStateGroup x:Name="CommonStates">
              <VisualState x:Name="Normal" />
              <VisualState x:Name="MouseOver" />
              <VisualState x:Name="Disabled" />
            </VisualStateGroup>
            <VisualStateGroup x:Name="SelectionStates">
              <VisualState x:Name="Unselected" />
              <VisualState x:Name="Selected">
                <Storyboard>
                  <ColorAnimationUsingKeyFrames Storyboard.TargetName="Border"
                                                Storyboard.TargetProperty="(Panel.Background).
                    (SolidColorBrush.Color)">
                    <EasingColorKeyFrame KeyTime="0"
                                         Value="{StaticResource SelectedBackgroundColor}" />
                  </ColorAnimationUsingKeyFrames>
                </Storyboard>
              </VisualState>
              <VisualState x:Name="SelectedUnfocused">
                <Storyboard>
                  <ColorAnimationUsingKeyFrames Storyboard.TargetName="Border"
                                                Storyboard.TargetProperty="(Panel.Background).
                    (SolidColorBrush.Color)">
                    <EasingColorKeyFrame KeyTime="0"
                                         Value="{StaticResource SelectedUnfocusedColor}" />
                  </ColorAnimationUsingKeyFrames>
                </Storyboard>
              </VisualState>
            </VisualStateGroup>
          </VisualStateManager.VisualStateGroups>
          <GridViewRowPresenter VerticalAlignment="{TemplateBinding VerticalContentAlignment}" />
        </Border>
      </ControlTemplate>
    </Setter.Value>
  </Setter>
</Style>

Příklady ControlTemplate používají jeden nebo více následujících zdrojů.

<!--Control colors.-->
<Color x:Key="WindowColor">#FFE8EDF9</Color>
<Color x:Key="ContentAreaColorLight">#FFC5CBF9</Color>
<Color x:Key="ContentAreaColorDark">#FF7381F9</Color>

<Color x:Key="DisabledControlLightColor">#FFE8EDF9</Color>
<Color x:Key="DisabledControlDarkColor">#FFC5CBF9</Color>
<Color x:Key="DisabledForegroundColor">#FF888888</Color>

<Color x:Key="SelectedBackgroundColor">#FFC5CBF9</Color>
<Color x:Key="SelectedUnfocusedColor">#FFDDDDDD</Color>

<Color x:Key="ControlLightColor">White</Color>
<Color x:Key="ControlMediumColor">#FF7381F9</Color>
<Color x:Key="ControlDarkColor">#FF211AA9</Color>

<Color x:Key="ControlMouseOverColor">#FF3843C4</Color>
<Color x:Key="ControlPressedColor">#FF211AA9</Color>


<Color x:Key="GlyphColor">#FF444444</Color>
<Color x:Key="GlyphMouseOver">sc#1, 0.004391443, 0.002428215, 0.242281124</Color>

<!--Border colors-->
<Color x:Key="BorderLightColor">#FFCCCCCC</Color>
<Color x:Key="BorderMediumColor">#FF888888</Color>
<Color x:Key="BorderDarkColor">#FF444444</Color>

<Color x:Key="PressedBorderLightColor">#FF888888</Color>
<Color x:Key="PressedBorderDarkColor">#FF444444</Color>

<Color x:Key="DisabledBorderLightColor">#FFAAAAAA</Color>
<Color x:Key="DisabledBorderDarkColor">#FF888888</Color>

<Color x:Key="DefaultBorderBrushDarkColor">Black</Color>

<!--Control-specific resources.-->
<Color x:Key="HeaderTopColor">#FFC5CBF9</Color>
<Color x:Key="DatagridCurrentCellBorderColor">Black</Color>
<Color x:Key="SliderTrackDarkColor">#FFC5CBF9</Color>

<Color x:Key="NavButtonFrameColor">#FF3843C4</Color>

<LinearGradientBrush x:Key="MenuPopupBrush"
                     EndPoint="0.5,1"
                     StartPoint="0.5,0">
  <GradientStop Color="{DynamicResource ControlLightColor}"
                Offset="0" />
  <GradientStop Color="{DynamicResource ControlMediumColor}"
                Offset="0.5" />
  <GradientStop Color="{DynamicResource ControlLightColor}"
                Offset="1" />
</LinearGradientBrush>

<LinearGradientBrush x:Key="ProgressBarIndicatorAnimatedFill"
                     StartPoint="0,0"
                     EndPoint="1,0">
  <LinearGradientBrush.GradientStops>
    <GradientStopCollection>
      <GradientStop Color="#000000FF"
                    Offset="0" />
      <GradientStop Color="#600000FF"
                    Offset="0.4" />
      <GradientStop Color="#600000FF"
                    Offset="0.6" />
      <GradientStop Color="#000000FF"
                    Offset="1" />
    </GradientStopCollection>
  </LinearGradientBrush.GradientStops>
</LinearGradientBrush>

Kompletní ukázku najdete v tématu Styling with ControlTemplates Sample.

Viz také