<Window x:Class="Animation.RotateButton"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="RotateButton" Height="300" Width="300">
<Window.Resources>
<Style TargetType="{x:Type Button}">
<Setter Property="HorizontalAlignment" Value="Center"></Setter>
<Setter Property="RenderTransformOrigin" Value="0.5,0.5"></Setter>
<Setter Property="RenderTransform">
<Setter.Value>
<RotateTransform></RotateTransform>
</Setter.Value>
</Setter>
<Style.Triggers>
<EventTrigger RoutedEvent="Button.MouseEnter">
<EventTrigger.Actions>
<BeginStoryboard Name="rotateStoryboardBegin">
<Storyboard>
<DoubleAnimation Storyboard.TargetProperty="RenderTransform.Angle"
To="360" Duration="0:0:0.8" RepeatBehavior="Forever"></DoubleAnimation>
</Storyboard>
</BeginStoryboard>
</EventTrigger.Actions>
</EventTrigger>
<EventTrigger RoutedEvent="Button.MouseLeave">
<EventTrigger.Actions>
<!-- <RemoveStoryboard BeginStoryboardName="rotateStoryboardBegin"></RemoveStoryboard> -->
<BeginStoryboard>
<Storyboard>
<DoubleAnimation Storyboard.TargetProperty="RenderTransform.Angle"
Duration="0:0:0.2"></DoubleAnimation>
</Storyboard>
</BeginStoryboard>
</EventTrigger.Actions>
</EventTrigger>
</Style.Triggers>
</Style>
</Window.Resources>
<StackPanel Margin="5" Button.Click="cmd_Clicked">
<Button>One</Button>
<Button>Two</Button>
<Button>Three</Button>
<Button>Four</Button>
</StackPanel>
</Window>
//File:Window.xaml.vb
Imports System
Imports System.Collections.Generic
Imports System.Text
Imports System.Windows
Imports System.Windows.Controls
Imports System.Windows.Data
Imports System.Windows.Documents
Imports System.Windows.Input
Imports System.Windows.Media
Imports System.Windows.Media.Imaging
Imports System.Windows.Shapes
Namespace Animation
Public Partial Class RotateButton
Inherits System.Windows.Window
Public Sub New()
InitializeComponent()
End Sub
Private Sub cmd_Clicked(sender As Object, e As RoutedEventArgs)
Console.WriteLine(DirectCast(e.OriginalSource, Button).Content)
End Sub
End Class
End Namespace
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