我有一个带有一些视觉状态的自定义切换按钮。我必须覆盖或更改“已检查”状态并以简单的方式执行此操作。但是状态没有显示但被调用。我做错了什么？
这是我的代码（示例）
[TemplateVisualState(GroupName = CommonStateGroup, Name = ToggleButton.CheckedNormal)]
public partial class ToggleButton : ToggleButton
{
internal const String CommonStateGroup = "CommonStates";
internal const String CheckedNormal = "CheckedNormal";
protected virtual void ChangeVisualState(bool useTransitions)
{
if (this.IsChecked.HasValue && this.IsChecked.Value)
{
VisualStateManager.GoToState(this, CheckedNormal, useTransitions);
}
}
protected override void OnChecked(RoutedEventArgs e)
{
base.OnChecked(e);
this.ChangeVisualState(true);
}
和模板
<ControlTemplate x:Key="myTemplate" TargetType="{x:Type vw:ToggleButton}">
<Grid Background="Transparent">
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="CommonStates">
<VisualState x:Name="Normal"/>
<VisualState x:Name="CheckedNormal">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Fill" Storyboard.TargetName="CheckedRectangle">
<DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource ToggleButtonCheckedBackgroundThemeBrush}"/>
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="BorderBrush" Storyboard.TargetName="BackgroundBorder">
<DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource ToggleButtonCheckedBorderThemeBrush}"/>
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Foreground" Storyboard.TargetName="ContentPresenter">
<DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource ToggleButtonCheckedForegroundThemeBrush}"/>
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
<Border x:Name="BackgroundBorder" CornerRadius="{TemplateBinding CornerRadius}" BorderBrush="{TemplateBinding BorderBrush}" Margin="3" BorderThickness="{TemplateBinding BorderThickness}">
<Grid>
<Rectangle x:Name="CheckedRectangle" StrokeThickness="0"/>
<Rectangle x:Name="MouseOverRectangle" StrokeThickness="0"/>
<Border x:Name="BlinkBorder" Background="{TemplateBinding BlinkBrush}" CornerRadius="{TemplateBinding CornerRadius}" Opacity="0"/>
<ContentControl x:Name="ContentPresenter" ContentTemplate="{TemplateBinding ContentTemplate}" Content="{TemplateBinding Content}" ContentStringFormat="{TemplateBinding ContentStringFormat}" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" Margin="{TemplateBinding Padding}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>
</Grid>
</Border>
<Rectangle x:Name="FocusVisualWhite" IsHitTestVisible="False" Opacity="0" StrokeDashOffset="1.5" StrokeEndLineCap="Square" Stroke="{StaticResource FocusVisualWhiteStrokeThemeBrush}" StrokeDashArray="1,1"/>
<Rectangle x:Name="FocusVisualBlack" IsHitTestVisible="False" Opacity="0" StrokeDashOffset="0.5" StrokeEndLineCap="Square" Stroke="{StaticResource FocusVisualBlackStrokeThemeBrush}" StrokeDashArray="1,1"/>
</Grid>
</ControlTemplate>
模板是在 Blend 中创建的，状态是通过在视觉状态中单击来实现的 testet。
我认为行为被“检查”状态打断。