Question

WPF如何修改ComboBox选中下拉菜单被选中项的背景蓝色？

原有的是蓝色，我想换一个自定义的颜色。怎么改？？

Answer 1

改成红色：

        <ComboBox 
        HorizontalAlignment="Center" VerticalAlignment="Center" 
        MinWidth="100">
            <ComboBox.Resources>
                <SolidColorBrush 
                x:Key="{x:Static SystemColors.HighlightBrushKey}" 
                Color="Red"/>
            </ComboBox.Resources>
            <ComboBox.Items>
                <ComboBoxItem>a</ComboBoxItem>
                <ComboBoxItem>b</ComboBoxItem>
            </ComboBox.Items>
        </ComboBox>