用 Blend 自动生成 自定义按钮控件 及设置触发器

<Window x:Class="BlendWpfApplication1.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="按钮控件" Height="350" Width="525">
    <Window.Resources>
        <Style x:Key="BtnStyle" TargetType="{x:Type Button}">
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="{x:Type Button}">
                        <Grid>
                            <Rectangle x:Name="rectangle" Fill="#FFB1B1FF" RadiusY="5" RadiusX="5"/>
                            <ContentPresenter x:Name="contentPresenter" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" RecognizesAccessKey="True" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>
                        </Grid>
                        <ControlTemplate.Triggers>
                            <!--按钮松开后  IsFocused为True 被激活 没被按下之前都是为False-->
                            <Trigger Property="IsFocused" Value="True">
                                <Setter Property="Fill" TargetName="rectangle" Value="#FFFFFBB1"/>
                                <Setter Property="Content" TargetName="contentPresenter" Value="Focus"/>
                            </Trigger>
                            <!--当按钮的IsDefaulted属性 为True 时生效  -->
                            <Trigger Property="IsDefaulted" Value="True">
                                <Setter Property="Fill" TargetName="rectangle" Value="#FFFF9B9B"/>
                                <Setter Property="Content" TargetName="contentPresenter" Value="IsDefaulted = True"/>
                            </Trigger>
                            <!--鼠标滑过 类似 Hover -->
                            <Trigger Property="IsMouseOver" Value="True">
                                <Setter Property="Content" TargetName="contentPresenter" Value="MouseOver"/>
                                <Setter Property="Fill" TargetName="rectangle" Value="#FF91FB81"/>
                            </Trigger>
                            <!--按下 -->
                            <Trigger Property="IsPressed" Value="True">
                                <Setter Property="Fill" TargetName="rectangle" Value="#FFB1FFFF"/>
                                <Setter Property="Content" TargetName="contentPresenter" Value="Press"/>
                            </Trigger>
                            <!--当按钮的IsEnabled属性 为false 时生效 -->
                            <Trigger Property="IsEnabled" Value="False">
                                <Setter Property="Content" TargetName="contentPresenter" Value="失活"/>
                                <Setter Property="Fill" TargetName="rectangle" Value="#FF727272"/>
                            </Trigger>
                        </ControlTemplate.Triggers>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>
    </Window.Resources>
    
    <Grid>
        <Button Content="Button" HorizontalAlignment="Left" Height="45.5" Margin="37,53.5,0,0" Style="{DynamicResource BtnStyle}" VerticalAlignment="Top" Width="151" IsEnabled="False"/>
                
    </Grid>
</Window>