WPF 用DynamicResource动态样式切换

平常在用WPF的时候，还是经常用到资源这个东西的，引用资源的时候一般都会用到StaticResource和DynamicResource来引用资源，关于这两个的区别的话我就不多说了,详情可以去参考:用实例讲DynamicResource与StaticResource的区别。我只是想运用DynamicResource来动态的切换样式。从而达到改变一个界面的模板颜色、样式、位置等等。所以来看一个简单的Demo，首先是XAML：

    <DockPanel>
        <StackPanel DockPanel.Dock="Top">
            <Button Name="button" Background="{DynamicResource buttonColor}" Foreground="{DynamicResource foreGround}" Width="100" Height="20" Margin="10" Content="换颜色" Click="Button_Click_1" />
            <Popup Name="popup" AllowsTransparency="True" StaysOpen="False" PopupAnimation="Slide"
                   Placement="Bottom" PlacementTarget="{Binding ElementName=button}">
                <Border Margin="0,0,10,10">
                    <StackPanel>
                        <Button Click="RectangleBlackButton_Click" Background="Transparent" BorderThickness="0">
                            <Rectangle Width="100" Height="20" Margin="0,5" Fill="Black" />
                        </Button>
                        <Button Click="RectangleGreenButton_Click" Background="Transparent" BorderThickness="0">
                            <Rectangle Width="100" Height="20" Margin="0,5" Fill="Green" />
                        </Button>
                        <Button Click="RectangleBlueButton_Click" Background="Transparent" BorderThickness="0">
                            <Rectangle Width="100" Height="20" Margin="0,5" Fill="Blue" />
                        </Button>
                    </StackPanel>
                </Border>
            </Popup>
        </StackPanel>
    </DockPanel>

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