在所需的事件中,您可以像这样设置背景颜色......
// Change the background color of button1 to Blue
button1.Background = Brushes.Blue;
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您也可以在触发器中设置它:
<!-- Button will change from Blue to Yellow on MouseOver -->
<Style TargetType="{x:Type Button}">
<Setter Property="Background" Value="Blue" />
<Style.Triggers>
<Trigger Property="IsMouseOver" Value="True">
<Setter Property="Background" Value="Yellow" />
</Trigger>
</Style.Triggers>
</Style>
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如需详情,请查看属性触发器的部分这一文章.