我有一个重置按钮 - 所需的行为是在鼠标悬停时增加尺寸，一旦点击，就会有一个边框。
IsMouseOver触发器有效，但我无法使MouseUp事件触发器工作（按下按钮后不会显示边框）。
我尝试了以下内容：
1）将事件触发器添加到控件模板触发器
2）向样式触发器添加事件触发器
3）向按钮添加事件触发器触发
我是否错误地编写了事件触发器？我已经添加了以下三次尝试的代码 - 希望我只是错过了一些明显的东西，并且是一个快速解决方案。谢谢！
1 - 向控件模板触发添加事件触发器
<Button x:Name="ResetButton"
Margin="0,0,20,0"
HorizontalAlignment="Right"
VerticalAlignment="Center"
Command="{Binding Path=DoClearCmd}"
ToolTip="Reset all search criteria.">
<StackPanel HorizontalAlignment="Right" Orientation="Horizontal">
<TextBlock HorizontalAlignment="Center"
VerticalAlignment="Center"
FontSize="16"
Foreground="White"
Text=" Reset" />
<Image Width="16"
Height="16"
Margin="2,0,0,0"
HorizontalAlignment="Center"
VerticalAlignment="Center" Source="..\Resources\Delete_16x16.png" />
</StackPanel>
<Button.Style>
<Style TargetType="{x:Type Button}">
<Setter Property="dx:ThemeManager.ThemeName" Value="None" />
<Setter Property="SnapsToDevicePixels" Value="true" />
<Setter Property="OverridesDefaultStyle" Value="true" />
<Setter Property="FocusVisualStyle" Value="{x:Null}" />
<Setter Property="MinHeight" Value="25" />
<Setter Property="MinWidth" Value="25" />
<Setter Property="BorderBrush" Value="Transparent" />
<Setter Property="BorderThickness" Value="0" />
<Setter Property="RenderTransform">
<Setter.Value>
<ScaleTransform ScaleX="1" ScaleY="1" />
</Setter.Value>
</Setter>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="Button">
<Border x:Name="Border">
<ContentPresenter Margin="2"
HorizontalAlignment="Center"
VerticalAlignment="Center"
RecognizesAccessKey="True" />
</Border>
<ControlTemplate.Triggers>
<EventTrigger RoutedEvent="MouseUp">
<BeginStoryboard>
<Storyboard RepeatBehavior="Forever">
<ColorAnimation Storyboard.TargetProperty="(Border.BorderBrush).(SolidColorBrush.Color)" To="Tomato" />
<DoubleAnimation Storyboard.TargetProperty="BorderThickness" To="2" />
</Storyboard>
</BeginStoryboard>
</EventTrigger>
<Trigger Property="IsMouseOver" Value="True">
<Trigger.EnterActions>
<BeginStoryboard>
<Storyboard>
<DoubleAnimation Duration="0:0:0.2"
Storyboard.TargetProperty="RenderTransform.ScaleX"
To="1.05" />
<DoubleAnimation Duration="0:0:0.2"
Storyboard.TargetProperty="RenderTransform.ScaleY"
To="1.05" />
</Storyboard>
</BeginStoryboard>
</Trigger.EnterActions>
<Trigger.ExitActions>
<BeginStoryboard>
<Storyboard>
<DoubleAnimation Duration="0:0:0.2"
Storyboard.TargetProperty="RenderTransform.ScaleX"
To="1" />
<DoubleAnimation Duration="0:0:0.2"
Storyboard.TargetProperty="RenderTransform.ScaleY"
To="1" />
</Storyboard>
</BeginStoryboard>
</Trigger.ExitActions>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</Button.Style>
</Button>
2 - 在样式触发器中添加事件触发器
<Button x:Name="ResetButton"
Margin="0,0,20,0"
HorizontalAlignment="Right"
VerticalAlignment="Center"
Command="{Binding Path=DoClearCmd}"
ToolTip="Reset all search criteria.">
<StackPanel HorizontalAlignment="Right" Orientation="Horizontal">
<TextBlock HorizontalAlignment="Center"
VerticalAlignment="Center"
FontSize="16"
Foreground="White"
Text=" Reset" />
<Image Width="16"
Height="16"
Margin="2,0,0,0"
HorizontalAlignment="Center"
VerticalAlignment="Center"
Source="..\Resources\Delete_16x16.png" />
</StackPanel>
<Button.Style>
<Style TargetType="{x:Type Button}">
<Setter Property="dx:ThemeManager.ThemeName" Value="None" />
<Setter Property="SnapsToDevicePixels" Value="true" />
<Setter Property="OverridesDefaultStyle" Value="true" />
<Setter Property="FocusVisualStyle" Value="{x:Null}" />
<Setter Property="MinHeight" Value="25" />
<Setter Property="MinWidth" Value="25" />
<Setter Property="BorderBrush" Value="Transparent" />
<Setter Property="BorderThickness" Value="0" />
<Setter Property="RenderTransform">
<Setter.Value>
<ScaleTransform ScaleX="1" ScaleY="1" />
</Setter.Value>
</Setter>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="Button">
<Border x:Name="Border">
<ContentPresenter Margin="2"
HorizontalAlignment="Center"
VerticalAlignment="Center"
RecognizesAccessKey="True" />
</Border>
<ControlTemplate.Triggers>
<Trigger Property="IsMouseOver" Value="True">
<Trigger.EnterActions>
<BeginStoryboard>
<Storyboard>
<DoubleAnimation Duration="0:0:0.2"
Storyboard.TargetProperty="RenderTransform.ScaleX"
To="1.05" />
<DoubleAnimation Duration="0:0:0.2"
Storyboard.TargetProperty="RenderTransform.ScaleY"
To="1.05" />
</Storyboard>
</BeginStoryboard>
</Trigger.EnterActions>
<Trigger.ExitActions>
<BeginStoryboard>
<Storyboard>
<DoubleAnimation Duration="0:0:0.2"
Storyboard.TargetProperty="RenderTransform.ScaleX"
To="1" />
<DoubleAnimation Duration="0:0:0.2"
Storyboard.TargetProperty="RenderTransform.ScaleY"
To="1" />
</Storyboard>
</BeginStoryboard>
</Trigger.ExitActions>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
<Style.Triggers>
<EventTrigger RoutedEvent="MouseUp">
<BeginStoryboard>
<Storyboard RepeatBehavior="Forever">
<ColorAnimation Storyboard.TargetProperty="(Border.BorderBrush).(SolidColorBrush.Color)" To="Tomato" />
<DoubleAnimation Storyboard.TargetProperty="BorderThickness" To="2" />
</Storyboard>
</BeginStoryboard>
</EventTrigger>
</Style.Triggers>
</Style>
</Button.Style>
</Button>
3 - 向按钮添加事件触发器触发
<Button x:Name="ResetButton"
Margin="0,0,20,0"
HorizontalAlignment="Right"
VerticalAlignment="Center"
Command="{Binding Path=DoClearCmd}"
ToolTip="Reset all search criteria.">
<StackPanel HorizontalAlignment="Right" Orientation="Horizontal">
<TextBlock HorizontalAlignment="Center"
VerticalAlignment="Center"
FontSize="16"
Foreground="White"
Text=" Reset" />
<Image Width="16"
Height="16"
Margin="2,0,0,0"
HorizontalAlignment="Center"
VerticalAlignment="Center"
Source="..\Resources\Delete_16x16.png" />
</StackPanel>
<Button.Style>
<Style TargetType="{x:Type Button}">
<Setter Property="dx:ThemeManager.ThemeName" Value="None" />
<Setter Property="SnapsToDevicePixels" Value="true" />
<Setter Property="OverridesDefaultStyle" Value="true" />
<Setter Property="FocusVisualStyle" Value="{x:Null}" />
<Setter Property="MinHeight" Value="25" />
<Setter Property="MinWidth" Value="25" />
<Setter Property="BorderBrush" Value="Transparent" />
<Setter Property="BorderThickness" Value="0" />
<Setter Property="RenderTransform">
<Setter.Value>
<ScaleTransform ScaleX="1" ScaleY="1" />
</Setter.Value>
</Setter>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="Button">
<Border x:Name="Border">
<ContentPresenter Margin="2"
HorizontalAlignment="Center"
VerticalAlignment="Center"
RecognizesAccessKey="True" />
</Border>
<ControlTemplate.Triggers>
<Trigger Property="IsMouseOver" Value="True">
<Trigger.EnterActions>
<BeginStoryboard>
<Storyboard>
<DoubleAnimation Duration="0:0:0.2"
Storyboard.TargetProperty="RenderTransform.ScaleX"
To="1.05" />
<DoubleAnimation Duration="0:0:0.2"
Storyboard.TargetProperty="RenderTransform.ScaleY"
To="1.05" />
</Storyboard>
</BeginStoryboard>
</Trigger.EnterActions>
<Trigger.ExitActions>
<BeginStoryboard>
<Storyboard>
<DoubleAnimation Duration="0:0:0.2"
Storyboard.TargetProperty="RenderTransform.ScaleX"
To="1" />
<DoubleAnimation Duration="0:0:0.2"
Storyboard.TargetProperty="RenderTransform.ScaleY"
To="1" />
</Storyboard>
</BeginStoryboard>
</Trigger.ExitActions>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</Button.Style>
<Button.Triggers>
<EventTrigger RoutedEvent="Button.MouseUp">
<BeginStoryboard>
<Storyboard RepeatBehavior="Forever">
<ColorAnimation Storyboard.TargetName="ResetButton" Storyboard.TargetProperty="(Border.BorderBrush).(SolidColorBrush.Color)" To="Tomato" />
<DoubleAnimation Storyboard.TargetName="ResetButton" Storyboard.TargetProperty="BorderThickness" To="2" />
</Storyboard>
</BeginStoryboard>
</EventTrigger>
</Button.Triggers>
</Button>
答案 0 :(得分：0)
对于你的第一个案例：
<Button>
<Button.Style>
<Style TargetType="{x:Type Button}">
<Setter Property="dx:ThemeManager.ThemeName" Value="None" />
<Setter Property="SnapsToDevicePixels" Value="true" />
<Setter Property="OverridesDefaultStyle" Value="true" />
<Setter Property="FocusVisualStyle" Value="{x:Null}" />
<Setter Property="MinHeight" Value="25" />
<Setter Property="MinWidth" Value="25" />
<Setter Property="BorderBrush" Value="Transparent" />
<Setter Property="BorderThickness" Value="0" />
<Setter Property="RenderTransform">
<Setter.Value>
<ScaleTransform ScaleX="1" ScaleY="1" />
</Setter.Value>
</Setter>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="Button">
<Border x:Name="Border"
BorderThickness="{TemplateBinding BorderThickness}"
BorderBrush="{TemplateBinding BorderBrush}">
<ContentPresenter Margin="2"
HorizontalAlignment="Center"
VerticalAlignment="Center"
RecognizesAccessKey="True" />
</Border>
<ControlTemplate.Triggers>
<EventTrigger RoutedEvent="MouseUp">
<BeginStoryboard>
<Storyboard Duration="0:0:2" AutoReverse="True" RepeatBehavior="Forever">
<ColorAnimation Storyboard.TargetProperty="(Border.BorderBrush).(SolidColorBrush.Color)" To="Tomato" />
<ThicknessAnimation Storyboard.TargetProperty="BorderThickness" To="4" />
</Storyboard>
</BeginStoryboard>
</EventTrigger>
<Trigger Property="IsMouseOver" Value="True">
<Trigger.EnterActions>
<BeginStoryboard>
<Storyboard>
<DoubleAnimation Duration="0:0:0.2"
Storyboard.TargetProperty="RenderTransform.ScaleX"
To="1.05" />
<DoubleAnimation Duration="0:0:0.2"
Storyboard.TargetProperty="RenderTransform.ScaleY"
To="1.05" />
</Storyboard>
</BeginStoryboard>
</Trigger.EnterActions>
<Trigger.ExitActions>
<BeginStoryboard>
<Storyboard>
<DoubleAnimation Duration="0:0:0.2"
Storyboard.TargetProperty="RenderTransform.ScaleX"
To="1" />
<DoubleAnimation Duration="0:0:0.2"
Storyboard.TargetProperty="RenderTransform.ScaleY"
To="1" />
</Storyboard>
</BeginStoryboard>
</Trigger.ExitActions>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</Button.Style>
</Button>
注意 MouseUp仅针对鼠标右键启动
希望，这有帮助
答案 1 :(得分：0)
这些方法不起作用的原因是因为MouseUp事件被按钮占用，而且永远不会到达您的处理程序。这可以通过右键单击（没有消耗）而不是左键单击来证明，上面的代码将起作用（我只测试了第一个样本）。
要解决此问题，您可以使用PreviewMouseUp事件代替。这在你的第一个样本中对我有用。