WPF 样式按钮 MouseOver 问题

我正在尝试在按钮上制作一个简单的鼠标悬停效果，当鼠标悬停时它确实会改变颜色，但颜色会立即更改为默认按钮背景...我如何覆盖此行为？

这是我的代码：

Style myBtnStyle = new Style();
Trigger bla = new Trigger() { Property = IsMouseOverProperty, Value = true };
bla.Setters.Add(new Setter(Control.BackgroundProperty, Brushes.Black));
myBtnStyle.Triggers.Add(bla);
button2.Style = myBtnStyle;

根据这个帖子，这个精美的动画是内置的，要删除它，您将需要覆盖ControlTemplate为您Button。幸运的是，这并不太难。我用了这个帖子作为源材料并提出以下内容Style这给了你这个想法。

<Style x:Key="MouseOverButtonStyle" TargetType="Button">
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="Button">
                <ControlTemplate.Resources>
                    <Style x:Key="ShadowStyle">
                        <Setter Property="Control.Foreground" Value="LightGray" />
                    </Style>
                </ControlTemplate.Resources>
                <Border Name="border" BorderThickness="1" Padding="4,2" BorderBrush="DarkGray" CornerRadius="3" Background="{TemplateBinding Background}">
                    <Grid >
                        <ContentPresenter HorizontalAlignment="Center" VerticalAlignment="Center" Name="contentShadow" Style="{StaticResource ShadowStyle}">
                            <ContentPresenter.RenderTransform>
                                <TranslateTransform X="1.0" Y="1.0" />
                            </ContentPresenter.RenderTransform>
                        </ContentPresenter>
                        <ContentPresenter HorizontalAlignment="Center" VerticalAlignment="Center" Name="content"/>
                    </Grid>
                </Border>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
    <Style.Triggers>
        <Trigger Property="IsMouseOver" Value="True">
            <Setter Property="Background" Value="Beige" />
        </Trigger>
    </Style.Triggers>
</Style>

Update:如果您下定决心要应用Style在代码中，你不想使用ResourceDictionary（可能是更好的方法），您可以加载Style动态使用XamlReader.Load:

            const string xaml = @"
<Style xmlns='http://schemas.microsoft.com/winfx/2006/xaml/presentation'
       xmlns:x='http://schemas.microsoft.com/winfx/2006/xaml'
       TargetType='Button'>
    <Setter Property='Template'>
        <!--- Omitted For Clarity --->
    </Setter>
    <Style.Triggers>
        <Trigger Property='IsMouseOver' Value='True'>
            <Setter Property='Background' Value='Beige' />
        </Trigger>
    </Style.Triggers>
</Style>";
            var encoding = new ASCIIEncoding();
            var bytes = encoding.GetBytes(xaml);
            var style = (Style)XamlReader.Load(new MemoryStream(bytes));
            Button1.Style = style;