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Stili e modelli di CheckBox

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In questo argomento vengono descritti gli stili e i modelli per il CheckBox controllo . È possibile modificare l'impostazione predefinita ControlTemplate per assegnare al controllo un aspetto univoco. Per altre informazioni, vedere Creare un modello per un controllo .

Parti checkbox

Il CheckBox controllo non include parti denominate.

Stati checkbox

Nella tabella seguente sono elencati gli stati di visualizzazione per il CheckBox controllo .

Nome VisualState Nome VisualStateGroup Descrizione
Normale CommonStates Lo stato predefinito.
MouseOver CommonStates Il puntatore del mouse è posizionato sul controllo.
Pressed CommonStates Il controllo è premuto.
Disabled CommonStates Il controllo è disabilitato.
Focused FocusStates Il controllo ha lo stato attivo.
Con stato non attivo FocusStates Il controllo non ha lo stato attivo.
Selezionato CheckStates IsChecked è .true
Non selezionato CheckStates IsChecked è .false
Indeterminato CheckStates IsThreeState è truee IsChecked è null.
Valido ValidationStates Il controllo usa la Validation classe e la Validation.HasError proprietà associata è false.
InvalidUnfocused ValidationStates La Validation.HasError proprietà associata ha true lo stato attivo.
InvalidFocused ValidationStates La Validation.HasError proprietà associata è true che il controllo non ha lo stato attivo.

Esempio di CheckBox ControlTemplate

Nell'esempio seguente viene illustrato come definire un ControlTemplate oggetto per il CheckBox controllo .

<Style x:Key="{x:Type CheckBox}"
       TargetType="{x:Type CheckBox}">
  <Setter Property="SnapsToDevicePixels"
          Value="true" />
  <Setter Property="OverridesDefaultStyle"
          Value="true" />
  <Setter Property="FocusVisualStyle"
          Value="{DynamicResource CheckBoxFocusVisual}" />
  <Setter Property="Template">
    <Setter.Value>
      <ControlTemplate TargetType="{x:Type CheckBox}">
        <BulletDecorator Background="Transparent">
          <BulletDecorator.Bullet>
            <Border x:Name="Border"
                    Width="13"
                    Height="13"
                    CornerRadius="0"
                    BorderThickness="1">
              <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}" />
                      <GradientStop Color="{DynamicResource ControlMediumColor}"
                                    Offset="1.0" />
                    </GradientStopCollection>
                  </LinearGradientBrush.GradientStops>
                </LinearGradientBrush>

              </Border.Background>
              <Grid>
                <Path Visibility="Collapsed"
                      Width="7"
                      Height="7"
                      x:Name="CheckMark"
                      SnapsToDevicePixels="False"
                      StrokeThickness="2"
                      Data="M 0 0 L 7 7 M 0 7 L 7 0">
                  <Path.Stroke>
                    <SolidColorBrush Color="{DynamicResource GlyphColor}" />
                  </Path.Stroke>
                </Path>
                <Path Visibility="Collapsed"
                      Width="7"
                      Height="7"
                      x:Name="InderminateMark"
                      SnapsToDevicePixels="False"
                      StrokeThickness="2"
                      Data="M 0 7 L 7 0">
                  <Path.Stroke>
                    <SolidColorBrush Color="{DynamicResource GlyphColor}" />
                  </Path.Stroke>
                </Path>
              </Grid>
            </Border>
          </BulletDecorator.Bullet>
          <VisualStateManager.VisualStateGroups>
            <VisualStateGroup x:Name="CommonStates">
              <VisualState x:Name="Normal" />
              <VisualState x:Name="MouseOver">
                <Storyboard>
                  <ColorAnimationUsingKeyFrames Storyboard.TargetName="Border"
                                                Storyboard.TargetProperty="(Panel.Background).
                      (GradientBrush.GradientStops)[1].(GradientStop.Color)">
                    <EasingColorKeyFrame KeyTime="0"
                                         Value="{StaticResource ControlMouseOverColor}" />
                  </ColorAnimationUsingKeyFrames>
                </Storyboard>
              </VisualState>
              <VisualState x:Name="Pressed">
                <Storyboard>
                  <ColorAnimationUsingKeyFrames Storyboard.TargetName="Border"
                                                Storyboard.TargetProperty="(Panel.Background).
                      (GradientBrush.GradientStops)[1].(GradientStop.Color)">
                    <EasingColorKeyFrame KeyTime="0"
                                         Value="{StaticResource ControlPressedColor}" />
                  </ColorAnimationUsingKeyFrames>
                  <ColorAnimationUsingKeyFrames Storyboard.TargetName="Border"
                                                Storyboard.TargetProperty="(Border.BorderBrush).
                      (GradientBrush.GradientStops)[0].(GradientStop.Color)">
                    <EasingColorKeyFrame KeyTime="0"
                                         Value="{StaticResource PressedBorderDarkColor}" />
                  </ColorAnimationUsingKeyFrames>
                  <ColorAnimationUsingKeyFrames Storyboard.TargetName="Border"
                                                Storyboard.TargetProperty="(Border.BorderBrush).
                      (GradientBrush.GradientStops)[1].(GradientStop.Color)">
                    <EasingColorKeyFrame KeyTime="0"
                                         Value="{StaticResource PressedBorderLightColor}" />
                  </ColorAnimationUsingKeyFrames>
                </Storyboard>
              </VisualState>
              <VisualState x:Name="Disabled" />
            </VisualStateGroup>
            <VisualStateGroup x:Name="CheckStates">
              <VisualState x:Name="Checked">
                <Storyboard>
                  <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.Visibility)"
                                                 Storyboard.TargetName="CheckMark">
                    <DiscreteObjectKeyFrame KeyTime="0"
                                            Value="{x:Static Visibility.Visible}" />
                  </ObjectAnimationUsingKeyFrames>
                </Storyboard>
              </VisualState>
              <VisualState x:Name="Unchecked" />
              <VisualState x:Name="Indeterminate">
                <Storyboard>
                  <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.Visibility)"
                                                 Storyboard.TargetName="InderminateMark">
                    <DiscreteObjectKeyFrame KeyTime="0"
                                            Value="{x:Static Visibility.Visible}" />
                  </ObjectAnimationUsingKeyFrames>
                </Storyboard>
              </VisualState>
            </VisualStateGroup>
          </VisualStateManager.VisualStateGroups>
          <ContentPresenter Margin="4,0,0,0"
                            VerticalAlignment="Center"
                            HorizontalAlignment="Left"
                            RecognizesAccessKey="True" />
        </BulletDecorator>
      </ControlTemplate>
    </Setter.Value>
  </Setter>
</Style>

L'esempio precedente usa una o più delle seguenti risorse.

<!--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>

Per l'esempio completo, vedere Esempio di applicazione di stili con ControlTemplates.

Vedi anche