WPF更改ListboxItem选中时突出显示颜色

Question

我在设置WPF中HighlightBrushKey的a SelectedItem时遇到了问题Listbox.我的目的是根据给定的布尔值设置Item的颜色,位于代码中.

我试过以下步骤:

• 实现转换器,检查布尔值并返回正确的颜色.

  例:

  <ribbon:RibbonWindow.Resources>
    <l:WindowControl x:Key="ListBoxItemBackgroundConverter" />
      <Style x:Key="listBoxStyle" TargetType="{x:Type ListBoxItem}">
        <Style.Resources>
          <SolidColorBrush x:Key="{x:Static SystemColors.HighlightBrushKey}" Color="{Binding Source={x:Static SystemColors.HighlightBrushKey}, Converter={StaticResource ListBoxItemBackgroundConverter}}"/>
          <SolidColorBrush x:Key="{x:Static SystemColors.ControlBrushKey}" Color="{Binding Source={x:Static SystemColors.ControlBrushKey}, Converter={StaticResource ListBoxItemBackgroundConverter}}"/>
        </Style.Resources>
      </Style>
  </ribbon:RibbonWindow.Resources>
  

  这里的问题是Convert方法只被调用一次,但我每次选择一个项目并检查布尔值时都需要调用Converter.像触发器一样,但带有" HighlightBrushKey".

  转换器:

  public object Convert(object value, Type targetType,
                        object parameter, CultureInfo culture)
  {
     if(currentField == null)
        return Brushes.Yellow;
     if (currentField.Save)
        return Brushes.LightGreen;
     else
        return Brushes.Yellow;
  }
  

• 我的下一个想法是将" HighlightBrushKey" 设置为" Transparent"并item.Background在代码中手动更改.这里的问题是我的物品变白了,无法看到背景颜色

  例:

  <ListBox.Resources>
      <SolidColorBrush x:Key="{x:Static SystemColors.HighlightBrushKey}" Color="Transparent" />
      <SolidColorBrush x:Key="{x:Static SystemColors.HighlightTextBrushKey}" Color="Black" />
      <SolidColorBrush x:Key="{x:Static SystemColors.ControlBrushKey}" Color="Transparent" />
  </ListBox.Resources>
  

提前致谢!:)

Answer 1

<Style x:Key="listBoxStyle" TargetType="{x:Type ListBox}">
    <Style.Resources>
         <!-- Background of selected item when focussed -->
         <SolidColorBrush x:Key="{x:Static SystemColors.HighlightBrushKey}" Color="Red" />
         <!-- Background of selected item when not focussed -->
         <SolidColorBrush x:Key="{x:Static SystemColors.ControlBrushKey}" Color="Green" />
    </Style.Resources>
</Style>

<ListBox Style="{StaticResource listBoxStyle}">
</ListBox>