CODEWITHSUNDEEP
wpfxamlthemes
Phil
Phil

Reputation: 42991

Is it possible to create a BulletDecorator using the current theme?

I'm using the well known technique of styling a list box to look like a radio button group. The style presents a BulletDecorator for each item in the list. In order to do this I need to reference a specific theme assembly such as PresentationFramework.Aero.dll, and then explicitly use that in my style.

xmlns:theme="clr-namespace:Microsoft.Windows.Themes;assembly=PresentationFramework.Aero"

<BulletDecorator.Bullet>
    <theme:BulletChrome 
        Background="{TemplateBinding Control.Background}" 
        BorderBrush="{TemplateBinding Control.BorderBrush}" 
        IsRound="True" 
        RenderMouseOver="{TemplateBinding UIElement.IsMouseOver}" 
        IsChecked="{TemplateBinding ListBoxItem.IsSelected}" />
</BulletDecorator.Bullet>

Is there a way to create a BulletDecorator which is styled using the current or default theme, so that I don't need to reference an explicit theme?

Upvotes: 0

Views: 919

Answers (1)

Thomas Levesque
Thomas Levesque

Reputation: 292465

You don't need to recreate the RadioButton template... why don't you just use a RadioButton in the ItemContainerStyle?

<Style x:Key="RadioButtonGroup" TargetType="ListBox">
  <Setter Property="ItemContainerStyle">
    <Setter.Value>
      <Style TargetType="ListBoxItem">
        <Setter Property="Template">
          <Setter.Value>
            <ControlTemplate TargetType="ListBoxItem">
              <RadioButton IsChecked="{TemplateBinding IsSelected}" Content="{TemplateBinding Content}" GroupName="ListBoxItems" />
            </ControlTemplate>
          </Setter.Value>
        </Setter>
      </Style>
    </Setter.Value>
  </Setter>
</Style>

Note that there's an issue with this approach: if you use this style for several ListBoxes in the same window, all RadioButtons will be mutually exclusive, because they will share the same GroupName. See this article for a workaround.

Upvotes: 1

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