在本地资源字典中覆盖SystemColors [英] Overriding SystemColors in local Resources dictionary

问题描述

我试图隐藏一些视觉提示，这些提示指示在WPF ListBox中的选择. 此答案建议通过覆盖SystemColors表示ListBox.

I'm trying to hide the visual hints that indicate selection in a WPF ListBox. This answer suggests this should work by overriding the SystemColors for that ListBox.

我创建了一个新的WPF项目，并像这样编辑MainWindow.xaml:

I created a new WPF project and edited the MainWindow.xaml like this:

<Window x:Class="WpfListboxWithoutSelection.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:local="clr-namespace:WpfListboxWithoutSelection"
        xmlns:s="clr-namespace:System;assembly=mscorlib"
        mc:Ignorable="d"
        Title="MainWindow" Height="150" Width="325">
  <Grid>
    <ListBox>
      <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>
      <s:String>Item 1</s:String>
      <s:String>Item 2</s:String>
      <s:String>Item 3</s:String>
    </ListBox>
  </Grid>
</Window>

不幸的是，这不起作用，窗口显示如下:

Unfortunately this doesn't work, the window appears like this:

知道我在做什么错吗?如何删除所选项目和悬停的项目上出现的蓝色?

Any idea what I'm doing wrong? How can I remove the blue colors that appear on the selected item and on the one hovered?

推荐答案

肯定不会起作用. 由于ListBox.Resources将为ListBox设置资源，而不是为ListBoxItem设置资源. 所以这是一个解决方案:

definitely it wont work. Since ListBox.Resources will set a resource for ListBox not for ListBoxItem. So here is a solution:

<Style TargetType="{x:Type ListBoxItem}">
    <Setter Property="FocusVisualStyle" Value="{x:Null}" />
    <Style.Resources>
        <SolidColorBrush x:Key="{x:Static SystemColors.HighlightBrushKey}" Color="Transparent"/>
        <SolidColorBrush x:Key="{x:Static SystemColors.InactiveSelectionHighlightBrushKey}" Color="Transparent"/>
    </Style.Resources>
</Style>

在windows.resource中添加这种样式，例如:

Attach this style in windows.resource like:

<Window.Resources>
    <Style TargetType="{x:Type ListBoxItem}">
        <Setter Property="FocusVisualStyle" Value="{x:Null}" />
        <Style.Resources>
            <SolidColorBrush x:Key="{x:Static SystemColors.HighlightBrushKey}" Color="Transparent"/>
            <SolidColorBrush x:Key="{x:Static SystemColors.InactiveSelectionHighlightBrushKey}" Color="Transparent"/>
        </Style.Resources>
    </Style>
</Window.Resources>

而且可以挑衅地将更多SolidColorBrush放入Style.Resources就像您在代码中所做的一样.

And defiantly you can put more SolidColorBrush into Style.Resources like what you did in your code.

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