C# 如何强制按钮看起来像是按下/悬停的？

我正在创建包含各种样式控件的演示应用程序。它允许我快速预览更改

我的问题是下面的代码不起作用：

<Button IsPressed="True">Pressed button</Button>

按下按钮

它表示

的setter已被压缩

受保护。我理解它，但我需要破解它并将该按钮添加到

启用

和

禁用

按钮演示旁边

---

我可能需要对

IsMouseOver

属性执行同样的操作。它不是一个真正的应用程序，只是一个展示。您能帮我找到快速且可能最简单的方法吗？

使用ToggleButton，并将IsChecked属性设置为“True”。这将模拟一个看起来被单击的按钮

<ToggleButton IsChecked="True">Toggle Button</ToggleButton>

切换按钮

通过@rmoore引用此答案。

---

有一种非常简单但冗长的方法可以做到这一点——假设您可以访问按钮控件的样式。如果您使用的是标准WPF按钮，则可以从

您将在那里找到

VisualState

部分。每个状态对应一个：正常、鼠标悬停、按下等。技巧很简单，但最终会出现大量重复代码（尽管对于showcase来说这应该不是什么大问题）

当您希望按钮看起来像按下了一样时，您需要做的就是将

的内容添加到

中。因此它应该是这样的：

<VisualState x:Name="Normal">
    <Storyboard>
        <ColorAnimation Duration="0" Storyboard.TargetName="Background" Storyboard.TargetProperty="(Border.Background).(SolidColorBrush.Color)" To="#FF6DBDD1"/>
        <DoubleAnimation Duration="0" Storyboard.TargetName="BackgroundAnimation" Storyboard.TargetProperty="Opacity" To="1"/>
        <ColorAnimation Duration="0" Storyboard.TargetName="BackgroundGradient" Storyboard.TargetProperty="(Rectangle.Fill).(GradientBrush.GradientStops)[0].(GradientStop.Color)" To="#D8FFFFFF"/>
        <ColorAnimation Duration="0" Storyboard.TargetName="BackgroundGradient" Storyboard.TargetProperty="(Rectangle.Fill).(GradientBrush.GradientStops)[1].(GradientStop.Color)" To="#C6FFFFFF"/>
        <ColorAnimation Duration="0" Storyboard.TargetName="BackgroundGradient" Storyboard.TargetProperty="(Rectangle.Fill).(GradientBrush.GradientStops)[2].(GradientStop.Color)" To="#8CFFFFFF"/>
        <ColorAnimation Duration="0" Storyboard.TargetName="BackgroundGradient" Storyboard.TargetProperty="(Rectangle.Fill).(GradientBrush.GradientStops)[3].(GradientStop.Color)" To="#3FFFFFFF"/>
    </Storyboard>
</VisualState>

---

您可以简单地使用Blend获得按钮的模板。 在这里，您可以找到IsPressedBorderbrush/背景的颜色。

---

设置这些按钮将使它们看起来像是与其他按钮相比被按下的（普通按钮）.

IsPressed不是现有的按钮属性，因此您需要将其添加为依赖属性。它是存在的，只是setter受保护，getter是公共的。为什么要使用受保护的setter？通过谷歌搜索

VisualStateManager

您可能会发现一些有用的内容。将您自己的DP设置为ispressever，并在鼠标上下移动时设置true和falsen并相应地应用样式

<!--Button with Pressed style-->
<Button Height="25" Width="50">
    <Button.Style>
        <Style TargetType="Button">
            <Setter Property="Background" Value="#FF1F3B53"/>
            <Setter Property="Foreground" Value="#FF000000"/>
            <Setter Property="Padding" Value="3"/>
            <Setter Property="BorderThickness" Value="1"/>
            <Setter Property="BorderBrush">
                <Setter.Value>
                    <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
                        <GradientStop Color="#FFA3AEB9" Offset="0"/>
                        <GradientStop Color="#FF8399A9" Offset="0.375"/>
                        <GradientStop Color="#FF718597" Offset="0.375"/>
                        <GradientStop Color="#FF617584" Offset="1"/>
                    </LinearGradientBrush>
                </Setter.Value>
            </Setter>
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="Button">
                        <Grid>
                            <VisualStateManager.VisualStateGroups>
                                <VisualStateGroup x:Name="CommonStates">
                                    <VisualState x:Name="Normal">
                                        <Storyboard>
                                            <ColorAnimation Duration="0" Storyboard.TargetName="Background" Storyboard.TargetProperty="(Border.Background).(SolidColorBrush.Color)" To="#FF6DBDD1"/>
                                            <DoubleAnimation Duration="0" Storyboard.TargetName="BackgroundAnimation" Storyboard.TargetProperty="Opacity" To="1"/>
                                            <ColorAnimation Duration="0" Storyboard.TargetName="BackgroundGradient" Storyboard.TargetProperty="(Rectangle.Fill).(GradientBrush.GradientStops)[0].(GradientStop.Color)" To="#D8FFFFFF"/>
                                            <ColorAnimation Duration="0" Storyboard.TargetName="BackgroundGradient" Storyboard.TargetProperty="(Rectangle.Fill).(GradientBrush.GradientStops)[1].(GradientStop.Color)" To="#C6FFFFFF"/>
                                            <ColorAnimation Duration="0" Storyboard.TargetName="BackgroundGradient" Storyboard.TargetProperty="(Rectangle.Fill).(GradientBrush.GradientStops)[2].(GradientStop.Color)" To="#8CFFFFFF"/>
                                            <ColorAnimation Duration="0" Storyboard.TargetName="BackgroundGradient" Storyboard.TargetProperty="(Rectangle.Fill).(GradientBrush.GradientStops)[3].(GradientStop.Color)" To="#3FFFFFFF"/>
                                        </Storyboard>
                                    </VisualState>
                                    <VisualState x:Name="MouseOver">
                                        <Storyboard>
                                            <DoubleAnimation Duration="0" Storyboard.TargetName="BackgroundAnimation" Storyboard.TargetProperty="Opacity" To="1"/>
                                            <ColorAnimation Duration="0" Storyboard.TargetName="BackgroundGradient" Storyboard.TargetProperty="(Rectangle.Fill).(GradientBrush.GradientStops)[1].(GradientStop.Color)" To="#F2FFFFFF"/>
                                            <ColorAnimation Duration="0" Storyboard.TargetName="BackgroundGradient" Storyboard.TargetProperty="(Rectangle.Fill).(GradientBrush.GradientStops)[2].(GradientStop.Color)" To="#CCFFFFFF"/>
                                            <ColorAnimation Duration="0" Storyboard.TargetName="BackgroundGradient" Storyboard.TargetProperty="(Rectangle.Fill).(GradientBrush.GradientStops)[3].(GradientStop.Color)" To="#7FFFFFFF"/>
                                        </Storyboard>
                                    </VisualState>
                                    <VisualState x:Name="Pressed">
                                        <Storyboard>
                                            <ColorAnimation Duration="0" Storyboard.TargetName="Background" Storyboard.TargetProperty="(Border.Background).(SolidColorBrush.Color)" To="#FF6DBDD1"/>
                                            <DoubleAnimation Duration="0" Storyboard.TargetName="BackgroundAnimation" Storyboard.TargetProperty="Opacity" To="1"/>
                                            <ColorAnimation Duration="0" Storyboard.TargetName="BackgroundGradient" Storyboard.TargetProperty="(Rectangle.Fill).(GradientBrush.GradientStops)[0].(GradientStop.Color)" To="#D8FFFFFF"/>
                                            <ColorAnimation Duration="0" Storyboard.TargetName="BackgroundGradient" Storyboard.TargetProperty="(Rectangle.Fill).(GradientBrush.GradientStops)[1].(GradientStop.Color)" To="#C6FFFFFF"/>
                                            <ColorAnimation Duration="0" Storyboard.TargetName="BackgroundGradient" Storyboard.TargetProperty="(Rectangle.Fill).(GradientBrush.GradientStops)[2].(GradientStop.Color)" To="#8CFFFFFF"/>
                                            <ColorAnimation Duration="0" Storyboard.TargetName="BackgroundGradient" Storyboard.TargetProperty="(Rectangle.Fill).(GradientBrush.GradientStops)[3].(GradientStop.Color)" To="#3FFFFFFF"/>
                                        </Storyboard>
                                    </VisualState>
                                    <VisualState x:Name="Disabled">
                                        <Storyboard>
                                            <DoubleAnimation Duration="0" Storyboard.TargetName="DisabledVisualElement" Storyboard.TargetProperty="Opacity" To=".55"/>
                                        </Storyboard>
                                    </VisualState>
                                </VisualStateGroup>
                                <VisualStateGroup x:Name="FocusStates">
                                    <VisualState x:Name="Focused">
                                        <Storyboard>
                                            <DoubleAnimation Duration="0" Storyboard.TargetName="FocusVisualElement" Storyboard.TargetProperty="Opacity" To="1"/>
                                        </Storyboard>
                                    </VisualState>
                                    <VisualState x:Name="Unfocused" />
                                </VisualStateGroup>
                            </VisualStateManager.VisualStateGroups>
                            <Border x:Name="Background" CornerRadius="3" Background="White" BorderThickness="{TemplateBinding BorderThickness}" BorderBrush="{TemplateBinding BorderBrush}">
                                <Grid Background="{TemplateBinding Background}"  Margin="1">
                                    <Border Opacity="0"  x:Name="BackgroundAnimation" Background="#FF448DCA" />
                                    <Rectangle x:Name="BackgroundGradient" >
                                        <Rectangle.Fill>
                                            <LinearGradientBrush StartPoint=".7,0" EndPoint=".7,1">
                                                <GradientStop Color="#FFFFFFFF" Offset="0" />
                                                <GradientStop Color="#F9FFFFFF" Offset="0.375" />
                                                <GradientStop Color="#E5FFFFFF" Offset="0.625" />
                                                <GradientStop Color="#C6FFFFFF" Offset="1" />
                                            </LinearGradientBrush>
                                        </Rectangle.Fill>
                                    </Rectangle>
                                </Grid>
                            </Border>
                            <ContentPresenter
                        x:Name="contentPresenter"
                        Content="{TemplateBinding Content}"
                        ContentTemplate="{TemplateBinding ContentTemplate}"
                        VerticalAlignment="{TemplateBinding VerticalContentAlignment}"
                        HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
                        Margin="{TemplateBinding Padding}"/>
                            <Rectangle x:Name="DisabledVisualElement" RadiusX="3" RadiusY="3" Fill="#FFFFFFFF" Opacity="0" IsHitTestVisible="false" />
                            <Rectangle x:Name="FocusVisualElement" RadiusX="2" RadiusY="2" Margin="1" Stroke="#FF6DBDD1" StrokeThickness="1" Opacity="0" IsHitTestVisible="false" />
                        </Grid>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>
    </Button.Style>
</Button>