本章講述：Button模板樣式修改，不顯示邊框，只顯示圖示，點選按鈕圖示動態旋轉；

主要採用採用圖片做背景和資料觸發器，觸發故事板（Storyboard）事件，實現按鈕中圖片按角度旋轉；

<Button Width="30" Height="30">
    <Button.Style>
        <Style TargetType="Button">
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="Button">
                        <Viewbox Width="30" Height="30">
                            <Image x:Name="RefreshImge_ctrl" Source="Pack://application:,,,/Real_WPF;component/Resources/Left/refresh.png" Width="25" Height="25"
                               RenderTransformOrigin="0.5,0.5" Stretch="None">
                                <Image.RenderTransform>
                                    <RotateTransform x:Name="imageRefresh" Angle="0">
                                    </RotateTransform>
                                </Image.RenderTransform>
                            </Image>
                        </Viewbox>
                        <ControlTemplate.Triggers>
                            <DataTrigger Binding="{Binding IsActive}" Value="true">
                                <DataTrigger.EnterActions>
                                    <BeginStoryboard x:Name="sb">
                                        <Storyboard >
                                            <DoubleAnimation RepeatBehavior="Forever" Storyboard.TargetName="imageRefresh" Storyboard.TargetProperty="Angle" To="360" Duration="0:0:3"/>
                                        </Storyboard>
                                    </BeginStoryboard>
                                </DataTrigger.EnterActions>
                                <DataTrigger.ExitActions>
                                    <StopStoryboard BeginStoryboardName="sb"/>
                                </DataTrigger.ExitActions>
                            </DataTrigger>
                        </ControlTemplate.Triggers>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>
    </Button.Style>
</Button>
 

效果圖：