1 <Window.Resources> 2 <Style x:Key="ImageAnimationStyle" TargetType="Image"> 3 <Style.Triggers> 4 <DataTrigger Binding="{Binding IsRotate}" Value="true"> 5 <DataTrigger.EnterActions> 6 <BeginStoryboard x:Name="b"> 7 <Storyboard> 8 <DoubleAnimation 9 Storyboard.TargetProperty="(Image.RenderTransform).(RotateTransform.Angle)" 10 To="60" 11 RepeatBehavior="Forever" 12 AutoReverse="True" 13 Duration="0:0:0.5"> 14 </DoubleAnimation> 15 </Storyboard> 16 </BeginStoryboard> 17 </DataTrigger.EnterActions> 18 <DataTrigger.ExitActions> 19 <StopStoryboard BeginStoryboardName="b"/> 20 </DataTrigger.ExitActions> 21 </DataTrigger> 22 </Style.Triggers> 23 </Style> 24 </Window.Resources> 25 26 27 <Window.DataContext> 28 <local:Datas/> 29 </Window.DataContext> 30 <Grid > 31 <Grid.RowDefinitions> 32 <RowDefinition Height="28*"/> 33 <RowDefinition Height="407*"/> 34 </Grid.RowDefinitions> 35 36 <StackPanel Orientation="Horizontal"> 37 <Button Content="start" Width="100" Command="{Binding StartRotateCmd}"/> 38 <Button Content="stop" Width="100" Command="{Binding StopRotateCmd}"/> 39 40 </StackPanel> 41 <Viewbox Grid.Row="1"> 42 <Image Style="{StaticResource ImageAnimationStyle}" Source="pack://application:,,,/通风风扇.png" Width="200" Margin="300,0,300,0" > 43 <Image.RenderTransform> 44 <RotateTransform CenterX="100" CenterY="100"/> 45 </Image.RenderTransform> 46 </Image> 47 </Viewbox> 48 49 </Grid>
