c# - 如何设置按钮悬停并单击前景的样式？

Question

我是样式的新手，不确定创建Button样式来更改IsMouseOver的Foreground的最佳方法 和 IsPressed。我使用 Border 作为模板，因为它具有 CornerRadius 以及背景和边框属性。但是 Border 没有 Foreground 属性。使用 Button 作为模板效果不佳，因为默认外观未被覆盖。

使用 Foreground 行为设置 Button 模板样式的更好方法是什么？也许在边框内使用标签？

这是 App.xaml:

<Application.Resources>
    <Style TargetType="Button" x:Key="MyButton">
        <Setter Property="SnapsToDevicePixels" Value="true"/>
        <Setter Property="OverridesDefaultStyle" Value="true"/>
        <Setter Property="MinHeight" Value="34"/>
        <Setter Property="Foreground" Value="White"/>
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="Button">
                    <Border Name="shortcutbutton"  
                    BorderThickness="1"
                    BorderBrush="Black"
                    Background="Gray">
                        <ContentPresenter Margin="2" 
                                  HorizontalAlignment="Center"
                                  VerticalAlignment="Center" 
                                  RecognizesAccessKey="True"/>
                    </Border>
                    <ControlTemplate.Triggers>
                        <Trigger Property="IsMouseOver" Value="true">
                            <Setter TargetName="shortcutbutton" Property="Background" Value="#FFDADADA" />
                            <Setter TargetName="shortcutbutton" Property="BorderBrush" Value="#EEEEEE" />
                            <!--<Setter TargetName="Border" Property="Foreground" Value="Black" />-->
                        </Trigger>
                        <Trigger Property="IsPressed" Value="true">
                            <Setter TargetName="shortcutbutton" Property="Background" Value="DarkGray" />
                            <Setter TargetName="shortcutbutton" Property="BorderBrush" Value="Black" />
                            <!--<Setter TargetName="Border" Property="Foreground" Value="Red" />-->
                        </Trigger>
                    </ControlTemplate.Triggers>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>
</Application.Resources>

和 xaml:

    <StackPanel HorizontalAlignment="Center" Height="100" VerticalAlignment="Center" Width="100">
        <Button Content="Button" Height="41" Style="{DynamicResource MyButton}"/>
    </StackPanel>

Answer 1

您需要将触发器从 ControlTemplate 移至 Style。像这样的事情:

        <Style TargetType="Button">
        <Setter Property="SnapsToDevicePixels" Value="true"/>
        <Setter Property="OverridesDefaultStyle" Value="true"/>
        <Setter Property="MinHeight" Value="34"/>
        <Setter Property="Foreground" Value="White"/>
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="Button">
                    <Border Name="shortcutbutton"  
                BorderThickness="1"
                BorderBrush="Black"
                Background="Gray">
                        <ContentPresenter Margin="2" 
                              HorizontalAlignment="Center"
                              VerticalAlignment="Center" 
                              RecognizesAccessKey="True"/>
                    </Border>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
        <Style.Triggers>
            <Trigger Property="IsMouseOver" Value="true">
                <Setter Property="Foreground" Value="#FFDADADA" />
            </Trigger>
            <Trigger Property="IsPressed" Value="true">
                <Setter Property="Foreground" Value="DarkGray" />
            </Trigger>
        </Style.Triggers>
    </Style>