如何更改所选 ComboBox 项目的背景颜色?超载 [英] How to change the background color of a selected ComboBox item? uwp

问题描述

我正在为 Windows 10 移动设备开发一个应用程序，我正在努力处理 ComboBox 控件的样式，更具体地说，是所选项目的背景颜色.

I'm developing an application for a Windows 10 Mobile device and I'm struggling to handle the styling for the ComboBox control, more specifically, the selected item's background color.

不编辑前景或背景属性控制；

Without editing the Foreground or Background properties of the control;

选择任何项目之前组合框的显示方式:

扩展的组合框

选择项为2"的组合框

我似乎找不到控件的任何属性，例如 SelectedItemBackgroundColor，更改 Foreground 和 Background 属性不会影响问题.

I can't seem to find any properties for the control such as SelectedItemBackgroundColor and changing the Foreground and Background properties doesn't affect the problem.

推荐答案

如果您查看 文档，可以看到ComboBoxItem的默认样式使用SystemControlHighlightListAccentLowBrush画笔作为SelectedItem.您可以在您的应用程序中重新定义此资源，也可以复制默认的 Style 并替换 Selected VisualState 中的 Background 画笔> 使用自定义画笔.

If you look into the documentation, you can see the default style of ComboBoxItem uses the SystemControlHighlightListAccentLowBrush brush as the background of SelectedItem. You can redefine this resource in your app or you can copy the default Style and replace the Background brush in Selected VisualState with a custom brush.

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