WPF滑块VisualStateManager

Question

我正在尝试用XAML实现我自己的Slider风格，但我做得不太正确。未触发VisualState x:Name="Pressed"。

...
<ControlTemplate TargetType="Slider">
    <Grid>
        <VisualStateManager.VisualStateGroups>
            <VisualStateGroup Name="CommonStates">
                <VisualState Name="Normal" />
                <VisualState Name="MouseOver">
                    ...
                </VisualState>
                <VisualState Name="Pressed">
                    <Storyboard>
                        <ColorAnimation Storyboard.TargetName="RepeatButtonValueBrush" Storyboard.TargetProperty="Color" To="{StaticResource PressedValueColor}" Duration="0"/>
                        <ColorAnimation Storyboard.TargetName="RepeatButtonRestBrush" Storyboard.TargetProperty="Color" To="{StaticResource PressedTrackColor}" Duration="0"/>
                    </Storyboard>
                </VisualState>
                <VisualState Name="Disabled">
                    ...
            </VisualStateGroup>
        </VisualStateManager.VisualStateGroups>
        ...
    </Grid>
</ControlTemplate>
...

我做错了什么？

谢谢

Answer 1

您需要调用VisualStateManager.GoToState方法来更改可视状态。请参阅这篇VisualStateManager and Triggers文章。