View Code 如下：
View Code
1 <LinearGradientBrush x:Key="BtnBrush" StartPoint="0,0" EndPoint="0,1"> 2 <GradientBrush.GradientStops> 3 <GradientStopCollection> 4 <GradientStop Color="White" Offset="0.0"/> 5 <GradientStop Color="#FFDBDCDD" Offset="0.5"/> 6 </GradientStopCollection> 7 </GradientBrush.GradientStops> 8 </LinearGradientBrush> 9 <Style x:Key="BtnStyle" TargetType="Button">10 <Setter Property="Template">11 <Setter.Value>12 <ControlTemplate TargetType="Button">13 <Border BorderThickness="1" 14 CornerRadius="10" 15 BorderBrush="Gray"16 Background="{StaticResource BtnBrush}">17 <ContentPresenter Margin="2"18 RecognizesAccessKey="True"/>19 </Border>20 </ControlTemplate>21 </Setter.Value>22 </Setter>23 </Style>24 ......25 <Button VerticalAlignment="Center" HorizontalAlignment="Center" Width="50" Height="50" 26 Style="{DynamicResource BtnStyle}" Command="{Binding BtnCommand}">27 <Button.Content>28 <Canvas Margin="5,-10,0,0" Visibility="{Binding IsVisible}">29 <Path Stroke="#FFD5D3D2" Fill="#FF76BB41" StrokeThickness=".8" Width="49" Height="40">30 <Path.Data>31 <PathGeometry>32 <PathFigure StartPoint="6.2,17.6" IsClosed="True">33 <LineSegment Point="15.8,27.2"></LineSegment>34 <LineSegment Point="42.8,0.4"></LineSegment>35 <LineSegment Point="48.6,6.6"></LineSegment>36 <LineSegment Point="15.6,39.6"></LineSegment>37 <LineSegment Point="0,24"></LineSegment>38 </PathFigure>39 </PathGeometry>40 </Path.Data>41 </Path>42 </Canvas>43 </Button.Content>44 </Button>
Code Behind 如下：
View Code
1 private Visibility _isVisible = Visibility.Hidden; 2 3 public Visibility IsVisible 4 { 5 get { return _isVisible; } 6 set 7 { 8 if (_isVisible != value) 9 {10 _isVisible = value;11 OnPropertyChanged("IsVisible");12 }13 }14 }15 16 public DelegateCommand BtnCommand17 {18 get;19 set;20 }21 22 public Window1()23 {24 InitializeComponent();25 BtnCommand = new DelegateCommand(ExecuteBtnClick);26 }27 private void ExecuteBtnClick()28 {29 IsVisible = Visibility.Visible;30 }
来源：https://www.cnblogs.com/Damon-Cui/archive/2011/11/17/2252640.html