VisualStateManager WPF 不起作用

debugcn 发表于 Dev

法比

我专门在 VS Blend 2017 设计器中设计了一个窗口，而没有对 XAML 代码进行任何更改。我创建了一个 StateGroup 和一个 State 并记录了一个 Button 上的更改。尝试从代码隐藏应用状态时，没有任何反应。

我也看过同一问题的主题，但不幸的是没有一个对我有用！

代码隐藏：

VisualStateManager.GoToState(this, "State1", false);

XAML：

<Window x:Class="Wpf_2017.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:local="clr-namespace:Wpf_2017"
        mc:Ignorable="d"
        Title="MainWindow" Height="350" Width="525">
    <Grid>
        <VisualStateManager.VisualStateGroups>
            <VisualStateGroup x:Name="MyStates">
                <VisualState x:Name="State1">
                    <Storyboard>
                        <ColorAnimationUsingKeyFrames Storyboard.TargetProperty="(Panel.Background).(SolidColorBrush.Color)" Storyboard.TargetName="button">
                            <EasingColorKeyFrame KeyTime="0" Value="#FFEA8686"/>
                        </ColorAnimationUsingKeyFrames>
                        <ColorAnimationUsingKeyFrames Storyboard.TargetProperty="(Border.BorderBrush).(SolidColorBrush.Color)" Storyboard.TargetName="button">
                            <EasingColorKeyFrame KeyTime="0" Value="#FFFF4848"/>
                        </ColorAnimationUsingKeyFrames>
                    </Storyboard>
                </VisualState>
            </VisualStateGroup>
        </VisualStateManager.VisualStateGroups>
        <Button x:Name="button" Content="Button" Margin="208.306,116.798,218.093,0" VerticalAlignment="Top" Height="26.065" Click="button_Click"/>

    </Grid>
</Window>

谢谢你的帮助！

毫米8

视觉状态应ControlTemplate在控件的中定义：

<Window x:Class="Wpf_2017.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:local="clr-namespace:WpfApp2"
        mc:Ignorable="d"
        Title="Window10" Height="300" Width="300">
    <Window.Template>
        <ControlTemplate TargetType="{x:Type Window}">
            <Border BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}">
                <VisualStateManager.VisualStateGroups>
                    <VisualStateGroup x:Name="MyStates">
                        <VisualState x:Name="State1">
                            <Storyboard>
                                <ColorAnimationUsingKeyFrames Storyboard.TargetProperty="(Panel.Background).(SolidColorBrush.Color)" Storyboard.TargetName="button">
                                    <EasingColorKeyFrame KeyTime="0" Value="#FFEA8686"/>
                                </ColorAnimationUsingKeyFrames>
                                <ColorAnimationUsingKeyFrames Storyboard.TargetProperty="(Border.BorderBrush).(SolidColorBrush.Color)" Storyboard.TargetName="button">
                                    <EasingColorKeyFrame KeyTime="0" Value="#FFFF4848"/>
                                </ColorAnimationUsingKeyFrames>
                            </Storyboard>
                        </VisualState>
                    </VisualStateGroup>
                </VisualStateManager.VisualStateGroups>
                <AdornerDecorator>
                    <StackPanel>
                        <Button x:Name="button" Content="Button" Margin="208.306,116.798,218.093,0" VerticalAlignment="Top" Height="26.065" Click="button_Click"/>
                    </StackPanel>
                </AdornerDecorator>
            </Border>
        </ControlTemplate>
    </Window.Template>
</Window>

那就是VisualStateManager寻找他们的地方。

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