我无法在 ContentPresenter (NormalTextDay) 中创建动画或自定义颜色，此错误出现在我的 XAML 中：
“System.Windows.Media.Animation.ColorAnimation”动画对象无法用于对属性“Foreground”进行动画处理，这是因为类型“System.Windows.Media.Brush”不兼容
<Style x:Key="CalendarDayButtonStyle" TargetType="{x:Type CalendarDayButton}">
<Setter Property="MinWidth" Value="5"/>
<Setter Property="MinHeight" Value="5"/>
<Setter Property="FontSize" Value="10"/>
<Setter Property="HorizontalContentAlignment" Value="Center"/>
<Setter Property="VerticalContentAlignment" Value="Center"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type CalendarDayButton}">
<Grid>
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="CommonStates">
<VisualStateGroup.Transitions>
<VisualTransition GeneratedDuration="0:0:0.1"/>
</VisualStateGroup.Transitions>
<VisualState x:Name="Normal"/>
<VisualState x:Name="MouseOver">
<Storyboard>
<DoubleAnimation Duration="0" To="0.5" Storyboard.TargetProperty="Opacity" Storyboard.TargetName="HighlightBackground"/>
</Storyboard>
</VisualState>
<VisualState x:Name="Pressed">
<Storyboard>
<DoubleAnimation Duration="0" To="0.5" Storyboard.TargetProperty="Opacity" Storyboard.TargetName="HighlightBackground"/>
</Storyboard>
</VisualState>
<VisualState x:Name="Disabled">
<!--<Storyboard>
<DoubleAnimation Duration="0" To="0" Storyboard.TargetProperty="Opacity" Storyboard.TargetName="HighlightBackground"/>
<DoubleAnimation Duration="0" To=".35" Storyboard.TargetProperty="Opacity" Storyboard.TargetName="NormalText"/>
</Storyboard>-->
</VisualState>
</VisualStateGroup>
<VisualStateGroup x:Name="SelectionStates">
<VisualStateGroup.Transitions>
<VisualTransition GeneratedDuration="0"/>
</VisualStateGroup.Transitions>
<VisualState x:Name="Unselected"/>
<VisualState x:Name="Selected">
<Storyboard>
<DoubleAnimation Duration="0" To=".75" Storyboard.TargetProperty="Opacity" Storyboard.TargetName="SelectedBackground"/>
</Storyboard>
</VisualState>
</VisualStateGroup>
<VisualStateGroup x:Name="CalendarButtonFocusStates">
<VisualStateGroup.Transitions>
<VisualTransition GeneratedDuration="0"/>
</VisualStateGroup.Transitions>
<VisualState x:Name="CalendarButtonFocused">
<Storyboard>
<ObjectAnimationUsingKeyFrames Duration="0" Storyboard.TargetProperty="Visibility" Storyboard.TargetName="DayButtonFocusVisual">
<DiscreteObjectKeyFrame KeyTime="0">
<DiscreteObjectKeyFrame.Value>
<Visibility>Visible</Visibility>
</DiscreteObjectKeyFrame.Value>
</DiscreteObjectKeyFrame>
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="CalendarButtonUnfocused">
<Storyboard>
<ObjectAnimationUsingKeyFrames Duration="0" Storyboard.TargetProperty="Visibility" Storyboard.TargetName="DayButtonFocusVisual">
<DiscreteObjectKeyFrame KeyTime="0">
<DiscreteObjectKeyFrame.Value>
<Visibility>Collapsed</Visibility>
</DiscreteObjectKeyFrame.Value>
</DiscreteObjectKeyFrame>
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
</VisualStateGroup>
<VisualStateGroup x:Name="ActiveStates">
<VisualStateGroup.Transitions>
<VisualTransition GeneratedDuration="0"/>
</VisualStateGroup.Transitions>
<VisualState x:Name="Active"/>
<VisualState x:Name="Inactive">
<Storyboard>
<DoubleAnimation Duration="0" To="0" Storyboard.TargetProperty="Opacity" Storyboard.TargetName="NormalTextDay"/>
<DoubleAnimation Duration="0" To="0" Storyboard.TargetProperty="Opacity" Storyboard.TargetName="GridValues"/>
<!--<ColorAnimationUsingKeyFrames Storyboard.TargetProperty="(TextBlock.Foreground).(SolidColorBrush.Color)" Storyboard.TargetName="NormalTextDay">
<EasingColorKeyFrame KeyTime="0" Value="#FFA71616"/>
</ColorAnimationUsingKeyFrames>-->
<!--<ColorAnimation Duration="0" To="#FF777777" Storyboard.TargetProperty="(TextBlock.Foreground).(SolidColorBrush.Color)" Storyboard.TargetName="NormalTextDay"/>-->
</Storyboard>
</VisualState>
</VisualStateGroup>
<VisualStateGroup x:Name="DayStates">
<VisualStateGroup.Transitions>
<VisualTransition GeneratedDuration="0"/>
</VisualStateGroup.Transitions>
<VisualState x:Name="RegularDay"/>
<VisualState x:Name="Today">
<Storyboard>
<DoubleAnimation Duration="0" To="1" Storyboard.TargetProperty="Opacity" Storyboard.TargetName="TodayBackground"/>
<ColorAnimation Duration="0" To="#FFFFFFFF" Storyboard.TargetProperty="(TextBlock.Foreground).(SolidColorBrush.Color)" Storyboard.TargetName="NormalTextDay"/>
</Storyboard>
</VisualState>
</VisualStateGroup>
<VisualStateGroup x:Name="BlackoutDayStates">
<VisualStateGroup.Transitions>
<VisualTransition GeneratedDuration="0"/>
</VisualStateGroup.Transitions>
<VisualState x:Name="NormalDay"/>
<VisualState x:Name="BlackoutDay">
<Storyboard>
<DoubleAnimation Duration="0" To=".2" Storyboard.TargetProperty="Opacity" Storyboard.TargetName="Blackout"/>
</Storyboard>
</VisualState>
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
<Rectangle x:Name="TodayBackground" Fill="#FFAAAAAA" Opacity="0" RadiusY="1" RadiusX="1" Grid.RowSpan="2"/>
<Rectangle x:Name="SelectedBackground" Fill="#FFBADDE9" Opacity="0" RadiusY="1" RadiusX="1" Grid.RowSpan="2"/>
<Border BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Grid.RowSpan="2" Background="{TemplateBinding Background}"/>
<Rectangle x:Name="HighlightBackground" Fill="#FFBADDE9" Opacity="0" RadiusY="1" RadiusX="1" Grid.RowSpan="2"/>
<ContentPresenter x:Name="NormalTextDay" TextBlock.Foreground="#FF333333" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}" Grid.Row="0">
</ContentPresenter>
<Path x:Name="Blackout" Data="M8.1772461,11.029181 L10.433105,11.029181 L11.700684,12.801641 L12.973633,11.029181 L15.191895,11.029181 L12.844727,13.999395 L15.21875,17.060919 L12.962891,17.060919 L11.673828,15.256231 L10.352539,17.060919 L8.1396484,17.060919 L10.519043,14.042364 z" Fill="#FF000000" HorizontalAlignment="Stretch" Margin="3" Opacity="0" RenderTransformOrigin="0.5,0.5" Stretch="Fill" VerticalAlignment="Stretch" Grid.RowSpan="2"/>
<Rectangle x:Name="DayButtonFocusVisual" IsHitTestVisible="false" RadiusY="1" RadiusX="1" Stroke="#FF45D6FA" Visibility="Collapsed" Grid.RowSpan="2"/>
<DataGrid Margin="0,0,0,0" x:Name="GridValues" Grid.Row="1">
<DataGrid.Columns>
<DataGridTemplateColumn Header="Período" Width="*" MaxWidth="200"/>
<DataGridTemplateColumn Header="Nº Max." Width="Auto" />
</DataGrid.Columns>
</DataGrid>
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
不太确定......但你可能需要改变这一点：
Storyboard.TargetProperty="(TextBlock.Foreground).(SolidColorBrush.Color)"
to this:
Storyboard.TargetProperty="(TextBlock.Foreground).Color"
正如在此语法中“Foreground”和“SolidColorBrush”是同一个对象，您似乎正在复制它。
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