// Summary:

        //     Gets or sets a property that enables customization of appearance, effects,

        //     or other style characteristics that will apply to this element when it captures

        //     keyboard focus. This is a dependency property.

        //

        // Returns:

        //     The desired style to apply on focus. The default value as declared in the

        //     dependency property is an empty static System.Windows.Style. However, the

        //     effective value at run time is often (but not always) a style as supplied

        //     by theme support for controls.

        public Style FocusVisualStyle { get; set; }    

<Window x:Class="FocusVisualStyleDemo.MainWindow"

        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

        Title="MainWindow" Height="" Width="">

    <Window.Resources>

        <!--将获取焦点的样式设置为红色边框-->

        <Style x:Key="newFocusStyle">

            <Setter Property="Control.Template">

                <Setter.Value>

                    <ControlTemplate>

                        <Rectangle Margin="-2" StrokeThickness="" Stroke="Red"/>

                    </ControlTemplate>

                </Setter.Value>

            </Setter>

        </Style>

    </Window.Resources>

    <Grid>

        <Button Margin="122.275,36.227,139.525,217.173" />

        <Button Margin="122.275,127.2,139.525,126.2" FocusVisualStyle="{DynamicResource newFocusStyle}"/>

        <Button Margin="97.919,209.328,106.481,32.872" FocusVisualStyle="{x:Null}"/>

    </Grid>

</Window>