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Estilos e modelos de RadioButton

  • Artigo

Este tópico descreve os estilos e modelos para o controle RadioButton. Você pode modificar o ControlTemplate padrão para dar ao controle uma aparência exclusiva. Para obter mais informações, consulte Criar um modelo para um controle.

As peças do RadioButton

O controle RadioButton não tem nenhuma parte nomeada.

Estados do RadioButton

A tabela a seguir lista os estados visuais para o controle RadioButton.

Nome do VisualState Nome do VisualStateGroup Descrição
Normal Estados comuns O estado padrão.
MouseOver Estados comuns O ponteiro do mouse é posicionado sobre o controle.
Pressionado Estados comuns O controle é pressionado.
Desabilitado Estados comuns O controle está desativado.
Focado FocusStates O comando tem foco.
Desfocado FocusStates O controlo não tem foco.
Verificada Estados de verificação IsChecked é true.
Não verificado Estados de verificação IsChecked é false.
Indeterminado Estados de verificação IsThreeState é truee IsChecked é null.
Válido Estados de Validação O controle usa a classe Validation e a propriedade Validation.HasError anexada é false.
FocadoInválido Estados de Validação A propriedade Validation.HasError anexada é true tem o controle tem foco.
InválidoDesfocado EstadosDeValidação A propriedade anexada Validation.HasError é true, mas o controlo não tem foco.

Exemplo de RadioButton ControlTemplate

O exemplo a seguir mostra como definir um ControlTemplate para o controle RadioButton.

<Style x:Key="{x:Type RadioButton}"
       TargetType="{x:Type RadioButton}">
  <Setter Property="SnapsToDevicePixels"
          Value="true" />
  <Setter Property="OverridesDefaultStyle"
          Value="true" />
  <Setter Property="FocusVisualStyle"
          Value="{DynamicResource RadioButtonFocusVisual}" />
  <Setter Property="Template">
    <Setter.Value>
      <ControlTemplate TargetType="{x:Type RadioButton}">
        <BulletDecorator Background="Transparent">
          <BulletDecorator.Bullet>
            <Grid Width="13"
                  Height="13">
              <Ellipse x:Name="Border"
                       StrokeThickness="1">
                <Ellipse.Stroke>
                  <LinearGradientBrush EndPoint="0.5,1"
                                       StartPoint="0.5,0">
                    <GradientStop Color="{DynamicResource BorderLightColor}"
                                  Offset="0" />
                    <GradientStop Color="{DynamicResource BorderDarkColor}"
                                  Offset="1" />
                  </LinearGradientBrush>
                </Ellipse.Stroke>
                <Ellipse.Fill>
                  <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>
                </Ellipse.Fill>
              </Ellipse>
              <Ellipse x:Name="CheckMark"
                       Margin="4"
                       Visibility="Collapsed">
                <Ellipse.Fill>
                  <SolidColorBrush Color="{DynamicResource GlyphColor}" />
                </Ellipse.Fill>
              </Ellipse>
            </Grid>
          </BulletDecorator.Bullet>
          <VisualStateManager.VisualStateGroups>
            <VisualStateGroup x:Name="CommonStates">
              <VisualState x:Name="Normal" />
              <VisualState x:Name="MouseOver">
                <Storyboard>
                  <ColorAnimationUsingKeyFrames Storyboard.TargetName="Border"
                                                Storyboard.TargetProperty="(Shape.Fill).
                    (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="(Shape.Fill).
                    (GradientBrush.GradientStops)[1].(GradientStop.Color)">
                    <EasingColorKeyFrame KeyTime="0"
                                         Value="{StaticResource ControlPressedColor}" />
                  </ColorAnimationUsingKeyFrames>
                </Storyboard>
              </VisualState>
              <VisualState x:Name="Disabled">
                <Storyboard>
                  <ColorAnimationUsingKeyFrames Storyboard.TargetName="Border"
                                                Storyboard.TargetProperty="(Shape.Fill).
                    (GradientBrush.GradientStops)[1].(GradientStop.Color)">
                    <EasingColorKeyFrame KeyTime="0"
                                         Value="{StaticResource ControlLightColor}" />
                  </ColorAnimationUsingKeyFrames>
                  <ColorAnimationUsingKeyFrames Storyboard.TargetName="Border"
                                                Storyboard.TargetProperty="(Shape.Stroke).
                    (GradientBrush.GradientStops)[1].(GradientStop.Color)">
                    <EasingColorKeyFrame KeyTime="0"
                                         Value="#40000000" />
                  </ColorAnimationUsingKeyFrames>
                  <ColorAnimationUsingKeyFrames Storyboard.TargetName="Border"
                                                Storyboard.TargetProperty="(Shape.Stroke).
                    (GradientBrush.GradientStops)[0].(GradientStop.Color)">
                    <EasingColorKeyFrame KeyTime="0"
                                         Value="#40000000" />
                  </ColorAnimationUsingKeyFrames>
                </Storyboard>
              </VisualState>
            </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" />
            </VisualStateGroup>
          </VisualStateManager.VisualStateGroups>
          <ContentPresenter Margin="4,0,0,0"
                            VerticalAlignment="Center"
                            HorizontalAlignment="Left"
                            RecognizesAccessKey="True" />
        </BulletDecorator>
      </ControlTemplate>
    </Setter.Value>
  </Setter>
</Style>

O exemplo anterior usa um ou mais dos seguintes recursos.

<!--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>

Para obter o exemplo completo, consulte Styling with ControlTemplates Sample.

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