Path=SelectedIndex}"Value="0"><SetterProperty="IsEnabled"Value="False"/></DataTrigger></Style.Triggers></Style></Button.Style><Button.Triggers><EventTriggerRoutedEvent="Button.Click"><BeginStoryboard><Storyboard
在上一篇《使用MVVM模式开发自定义UserControl》中,有一个重要的补充内容,就是WPF中的EventTrigger和命令绑定,在本篇中继续阐述。 如果单纯在Button中使用命令绑定,则其本身就带有Command属性,但是扩展到任何其它控件,就得稍微复杂一点。以本篇来讲,依赖于我们拥有如下两个dll: Microsoft.Expression.Interactions.dll Syst...
Eventtrigger一般用于动画效果的处理。上面俩个触发器作用对象都是属性。而这个却是作用于事件的。表示当前某个事件发生后要触发。 一般配合动画使用,它的内部不能是简单的Setter集合,而必须是TriggerAction的实例。 ```C# `<Grid>` `<Button Margin="15" Width="200" Name="myButton">` Click Me to Animate ...
在上述示例中,当鼠标悬停在按钮上时,属性触发器将触发并将按钮的背景设置为红色。 2. 事件触发器示例: ```xaml<Grid><Grid.Triggers><EventTriggerRoutedEvent="Button.Click"><BeginStoryboard><Storyboard><DoubleAnimationFrom="1"To="0"Duration="0:0:1"Storyboard.TargetName="rectangle"Storyboard.TargetPro...
1<Buttonx:Name="btnTest"Click="btnTest_Click">2<Button.Triggers>3<EventTriggerRoutedEvent="Button.Click">4<BeginStoryboard>5<!--要执行的动画代码-->6</BeginStoryboard>7</EventTrigger>8</Button.Triggers>9</Button> 1. 2. 3. 4. ...
<Button x:Name="btnFocusFalse" Grid.Row="2" Content="Set False"> </Button> <Grid.Triggers> <EventTrigger RoutedEvent="Button.Click" SourceName="btnFocusTrue"> <BeginStoryboard Name="FocusTrueStoryboard"> <Storyboard > <BooleanAnimationUsingKeyFrames ...
在实际应用中,可以通过EventTrigger实现各种视觉效果和交互动作。在鼠标悬停在按钮上时改变按钮的颜色,可以使用如下代码: ```xml <Button Content="Click me!"> <Button.Triggers> <EventTrigger RoutedEvent="MouseEnter"> <BeginStoryboard> <Storyboard> <ColorAnimation Storyboard.TargetProperty="(Button.Background...
EventTrigger> <!-- Seek one second into the storyboard's active period. --> <EventTrigger RoutedEvent="Button.Click" SourceName="SeekButton"> <SeekStoryboard BeginStoryboardName="MyBeginStoryboard" Offset="0:0:1" Origin="BeginTime" /> </EventTrigger> <!-- ...
<Button.Triggers> <EventTrigger RoutedEvent="Button.Click"> <EventTrigger.Actions> <BeginStoryboard> <Storyboard> <!-- Sound wave from this source is played when the button is clicked.--> <MediaTimeline Source="C:\WINDOWS\Media\ringin.wav" Storyboard.TargetName="myMediaElement"...
<Button.Triggers> <EventTrigger RoutedEvent="Button.Click"> <EventTrigger.Actions> <BeginStoryboard> <Storyboard> <!-- Sound wave from this source is played when the button is clicked.--> <MediaTimeline Source="C:\WINDOWS\Media\ringin.wav" Storyboard.TargetName="myMediaElement" /> </...