WPF Border 阴影效果

<Border ClipToBounds="True" Width=" 50" Height="50" BorderBrush="RosyBrown"  BorderThickness="1">

            <Border BorderBrush="Black" BorderThickness="1" Margin="-2" >

                <Border.Effect>

                    <DropShadowEffect BlurRadius="10" ShadowDepth="0" />

                </Border.Effect>

            </Border>

        </Border>

转载源http://www.cnblogs.com/mantian/archive/2013/01/08/2851496.html