通过 XAML 获取鼠标捕获

Question

这是我的button 风格：

<Style x:Key="NoBorderButton" TargetType="Button">
    <Setter Property="Foreground" Value="White" />
    <Setter Property="Background" Value="Transparent" />
    <Setter Property="BorderBrush" Value="Transparent" />
    <Setter Property="BorderThickness" Value="0" />
    <Setter Property="FontSize" Value="15" />
    <Style.Triggers>
        <Trigger Property="Control.IsMouseOver" Value="true">
            <Setter Property="Control.FontSize" Value="18" />
            <Setter Property="Foreground" Value="LightSkyBlue" />
        </Trigger>
        <Trigger Property="Control.IsMouseOver" Value="false" >
            <Setter Property="Foreground" Value="White" />
        </Trigger>
    </Style.Triggers>
</Style>

我想在我的button 中添加另一个Trigger：GotMouseCapture 和LostMouseCapture，但我没有找到它，只能通过后面的代码：

private void btnClose_LostMouseCapture(object sender, MouseEventArgs e)
{
    btnClose.Foreground = Brushes.White;
}

private void btnClose_GotMouseCapture(object sender, MouseEventArgs e)
{
    btnClose.Foreground = Brushes.DarkGray;
}

Answer 1

您可以使用EventTrigger，这是一个示例：

<EventTrigger RoutedEvent="GotMouseCapture">
    <BeginStoryboard>
        <Storyboard>
            <ColorAnimation Storyboard.TargetProperty="Foreground"
                            To="DarkGray"
                            Duration="0:0:0"/>
        </Storyboard>
     </BeginStoryboard>
 </EventTrigger>