Question

我的app.xaml文件中定义了一个适用于所有按钮的样式。默认情况下，所有按钮都会获得DarkGray边框。但是，当对该按钮执行某个操作时，我想将边框更改为红色。

我通过创建一个全新的样式，为它定义x:key value然后像这样分配新样式来完成这个：

Style style = this.FindResource("RedBorderButtonStyle") as Style;
button.Style = style;

但是，我必须复制并粘贴下面的整个code才能更改边框颜色。必须有更好的方法。

提前致谢！

     <Style TargetType="Button">
            <Setter Property="SnapsToDevicePixels" Value="true" />
            <Setter Property="OverridesDefaultStyle" Value="true" />
            <Setter Property="FocusVisualStyle" Value="{StaticResource ButtonFocusVisual}" />
            <Setter Property="MinHeight" Value="20px" /> 
            <Setter Property="Foreground" Value="#FFFFFFFF" />
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="Button">
                        <Border TextBlock.Foreground="{TemplateBinding Foreground}" x:Name="Border" BorderThickness="1" BorderBrush="DarkGray">
                            <Border.Background>
                                <SolidColorBrush  Color="{DynamicResource ControlNormalColor}" />
                            </Border.Background>
                            <VisualStateManager.VisualStateGroups>
                                <VisualStateGroup x:Name="CommonStates">
                                    <VisualStateGroup.Transitions>
                                        <VisualTransition GeneratedDuration="0:0:0.9" />
                                        <VisualTransition GeneratedDuration="0" To="Pressed" />
                                    </VisualStateGroup.Transitions>
                                    <VisualState x:Name="Normal" />
                                    <VisualState x:Name="MouseOver">
                                        <Storyboard>
                                            <ColorAnimationUsingKeyFrames Storyboard.TargetProperty="(Panel.Background).(SolidColorBrush.Color)"
                                                Storyboard.TargetName="Border">
                                                <EasingColorKeyFrame KeyTime="0" Value="{StaticResource ControlMouseOverColor}" />
                                            </ColorAnimationUsingKeyFrames>
                                        </Storyboard>
                                    </VisualState>
                                    <VisualState x:Name="Pressed">
                                        <Storyboard>
                                            <ColorAnimationUsingKeyFrames Storyboard.TargetProperty="(Panel.Background).(SolidColorBrush.Color)"
                                                Storyboard.TargetName="Border">
                                                <EasingColorKeyFrame KeyTime="0" Value="{StaticResource ControlPressedColor}" />
                                            </ColorAnimationUsingKeyFrames>
                                        </Storyboard>
                                    </VisualState>
                                    <VisualState x:Name="Disabled">
                                        <Storyboard>
                                            <ColorAnimationUsingKeyFrames Storyboard.TargetProperty="(Panel.Background).(SolidColorBrush.Color)"
                                                Storyboard.TargetName="Border">
                                                <EasingColorKeyFrame KeyTime="0" Value="{StaticResource DisabledControlColor}" />
                                            </ColorAnimationUsingKeyFrames>
                                            <ColorAnimationUsingKeyFrames Storyboard.TargetProperty="(TextBlock.Foreground).(SolidColorBrush.Color)"
                                                Storyboard.TargetName="Border">
                                                <EasingColorKeyFrame KeyTime="0" Value="{StaticResource DisabledForegroundColor}" />
                                            </ColorAnimationUsingKeyFrames>
                                        </Storyboard>
                                    </VisualState>
                                </VisualStateGroup>
                            </VisualStateManager.VisualStateGroups>
                            <ContentPresenter Margin="2"
                            HorizontalAlignment="Center"
                            VerticalAlignment="Center"
                            RecognizesAccessKey="True" />
                        </Border>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>

Answer 1

您可以将Style中BorderBrush的{{1}}属性绑定到Border的{{1}}属性，而不是定义和应用新的ControlTemplate。 BorderBrush本身：

Button

...只需设置<Style TargetType="Button"> <Setter Property="SnapsToDevicePixels" Value="true" /> <Setter Property="OverridesDefaultStyle" Value="true" /> <Setter Property="FocusVisualStyle" Value="{StaticResource ButtonFocusVisual}" /> <Setter Property="MinHeight" Value="20px" /> <Setter Property="Foreground" Value="#FFFFFFFF" />  <Setter Property="BorderBrush" Value="DarkGray" /> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="Button"> <Border TextBlock.Foreground="{TemplateBinding Foreground}" x:Name="Border" BorderThickness="1" BorderBrush="{TemplateBinding BorderBrush}"> <Border.Background> <SolidColorBrush Color="{DynamicResource ControlNormalColor}" /> </Border.Background> ... </Border> </ControlTemplate> </Setter.Value> </Setter> </Style>的{{1}}属性：

BorderBrush

如何在运行时调整样式

1 个答案: