不清晰时覆盖ListBoxItem背景色（.NET 4.5） [英] Overriding ListBoxItem background color when not in focus (.NET 4.5)

问题描述

根据此，重写ControlBrushKey资源应在没有焦点的情况下更改ListBox选定项的背景颜色。我创建了一个简单的示例来证明这一点：

According to this, overriding the ControlBrushKey resource should change the background color of a ListBox selected item when it doesn't have focus. I created a simple example to disprove this:

 <StackPanel>
    <ListBox>
      <ListBox.Resources>
        <SolidColorBrush x:Key="{x:Static SystemColors.HighlightBrushKey}" Color="LightBlue"/>
        <!--SelectedItem without focus but doesn't really work-->
        <SolidColorBrush x:Key="{x:Static SystemColors.ControlBrushKey}" Color="Orange" />
      </ListBox.Resources>
      <ListBoxItem>
        Item 1
      </ListBoxItem>
      <ListBoxItem>
        Item 2
      </ListBoxItem>
    </ListBox>
    <TextBox></TextBox>
  </StackPanel>

如果您在.NET 4.5中运行此程序，则可以看到它只会更改焦点对准的颜色，但不是重点（它在.NET 4.0中有效）。知道为什么吗？

If you run this in .NET 4.5 you can see that it only changes the in-focus color, but not the not-in-focus (it works in .NET 4.0). Any idea why?

编辑：这似乎与。

This seems to be duplicate of List/Combo Box Background And Selected Colours Under .net 4.5.

推荐答案

尝试以下操作来更改选定的ListBoxItem失去焦点时的背景颜色：

Try the following for changing the selected ListBoxItem's background color when it has lost focus:

XAML

<ListBox.Resources>    
    <SolidColorBrush x:Key="{x:Static SystemColors.HighlightBrushKey}" Color="LightBlue"/> 
    <SolidColorBrush x:Key="{x:Static SystemColors.InactiveSelectionHighlightBrushKey }" Color="Orange" />    
</ListBox.Resources>

C＃

listBox.Resources.Add(SystemColors.InactiveSelectionHighlightBrushKey, 
                      new SolidColorBrush(Colors.Orange));

我希望它对您有用。

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