wpf XAML 中的动画按钮背景颜色
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Animate button background color in XAML
提问by Dim
I new to WPF and XAML, so I have ResourceDictionary(one button for now):
我是 WPF 和 XAML 的新手，所以我有ResourceDictionary（现在一个按钮）：
<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
<Style x:Key="ButtonProduct" TargetType="Button">
<Setter Property="SnapsToDevicePixels" Value="true"/>
<Setter Property="OverridesDefaultStyle" Value="true"/>
<Setter Property="HorizontalAlignment" Value="Center"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type Button}">
<Border Name="Border"
CornerRadius="0"
BorderThickness="0"
Focusable="False"
BorderBrush="Transparent" Background="White">
<ContentPresenter Margin="2" HorizontalAlignment="Center" VerticalAlignment="Center" RecognizesAccessKey="True"/>
</Border>
<ControlTemplate.Triggers>
<Trigger Property="IsMouseOver" Value="true">
<Setter Property="Background" Value="#52b0ca"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</ResourceDictionary>
On hover the color of the button changes, but how can I make change in fade in and out, for smooth transition of the color?
悬停按钮的颜色会发生变化，但是如何更改淡入淡出以实现颜色的平滑过渡？
回答by dkozl
You can use EventTriggerto start ColorAnimationon MouseEnterand MouseLeave:
您可以使用EventTrigger开始ColorAnimation就MouseEnter和MouseLeave：
<ControlTemplate TargetType="{x:Type Button}">
<Border Name="Border" CornerRadius="0" BorderThickness="0" Focusable="False" BorderBrush="Transparent" Background="White">
<ContentPresenter Margin="2" HorizontalAlignment="Center" VerticalAlignment="Center" RecognizesAccessKey="True"/>
</Border>
<ControlTemplate.Triggers>
<EventTrigger RoutedEvent="MouseEnter">
<BeginStoryboard>
<Storyboard>
<ColorAnimation From="White" To="#52b0ca" Duration="0:0:1" Storyboard.TargetName="Border" Storyboard.TargetProperty="Background.Color"/>
</Storyboard>
</BeginStoryboard>
</EventTrigger>
<EventTrigger RoutedEvent="MouseLeave">
<BeginStoryboard>
<Storyboard>
<ColorAnimation From="#52b0ca" To="White" Duration="0:0:1" Storyboard.TargetName="Border" Storyboard.TargetProperty="Background.Color"/>
</Storyboard>
</BeginStoryboard>
</EventTrigger>
</ControlTemplate.Triggers>
</ControlTemplate>
