仅在 Style.xaml 中将 ComboBox 从 ComboBox 更改为事件触发
本文关键字：ComboBox 事件 Style xaml 中将 仅在 | 更新日期: 2023-09-27 17:55:37
我有一个没有.cs文件的样式xaml
。您可以在下面找到我代码的一部分。在那里你可以找到TextBlock.我想在用户执行操作（悬停、单击等）时更改那里的字体颜色。如您所见，有一个 视觉状态管理器 处理Combobox的事件 .是否可以覆盖视觉状态管理器中的前台（例如：如果"单击"则为红色，如果为"悬停"，则为蓝色）？
花了很多时间来寻找我的问题的解决方案，但没有解决方案......
有人可以帮助我吗？请注意，该解决方案仅在实现的 xaml 文件中，该文件包含我的控件中的所有样式。
<Border x:Name="ContentPresenterBorder"
BorderBrush="Blue">
<Grid>
<ToggleButton x:Name="DropDownToggle"
HorizontalAlignment="Stretch"
Margin="0"
Style="{StaticResource comboToggleStyle}"
VerticalAlignment="Stretch"
BorderThickness="{TemplateBinding BorderThickness}"
HorizontalContentAlignment="Right"
Background="White"
BorderBrush="{x:Null}">
</ToggleButton>
<StackPanel Orientation="Horizontal">
<TextBlock x:Name="TextTextBlock"
Text="{TemplateBinding Tag}"
FontWeight="Bold"
Foreground="White"
HorizontalAlignment="Center"
VerticalAlignment="Center"
Padding="{TemplateBinding Padding}"
Effect="{StaticResource MenuDropShadowEffect}"
IsHitTestVisible="False">
<i:Interaction.Triggers>
<i:EventTrigger EventName="MouseEnter">
<ei:ChangePropertyAction PropertyName="Foreground">
<ei:ChangePropertyAction.Value>
<SolidColorBrush Color="#FF04A925" />
</ei:ChangePropertyAction.Value>
</ei:ChangePropertyAction>
</i:EventTrigger>
<i:EventTrigger EventName="MouseLeave">
<ei:ChangePropertyAction PropertyName="Foreground">
<ei:ChangePropertyAction.Value>
<SolidColorBrush Color="Black"/>
</ei:ChangePropertyAction.Value>
</ei:ChangePropertyAction>
</i:EventTrigger>
</i:Interaction.Triggers>
</TextBlock>
<Path x:Name="BtnArrow"
Stretch="Uniform"
Height="4"
HorizontalAlignment="Right"
Margin="0,0,6,0"
Width="8"
Fill="White"
Data="F1 M 301.14,-189.041L 311.57,-189.041L 306.355,-182.942L 301.14,-189.041 Z "
Effect="{StaticResource MenuDropShadowEffect}"
IsHitTestVisible="False">
</Path>
</StackPanel>
<ContentPresenter x:Name="ContentPresenter"
Visibility="Collapsed" />
</Grid>
</Border>
<Rectangle x:Name="DisabledVisualElement"
Fill="White"
RadiusX="3"
RadiusY="3"
IsHitTestVisible="false"
Opacity="0" />
<Rectangle x:Name="FocusVisualElement"
Stroke="{x:Null}"
StrokeThickness="1"
RadiusX="2"
RadiusY="2"
Margin="1"
IsHitTestVisible="false"
Opacity="0"
Fill="{x:Null}" />
<Border x:Name="ValidationErrorElement"
Visibility="Collapsed"
BorderBrush="#FFDB000C"
BorderThickness="1"
CornerRadius="1">
<ToolTipService.ToolTip>
<ToolTip x:Name="validationTooltip"
DataContext="{Binding RelativeSource={RelativeSource TemplatedParent}}"
Template="{StaticResource ValidationToolTipTemplate}"
Placement="Right"
PlacementTarget="{Binding RelativeSource={RelativeSource TemplatedParent}}">
<ToolTip.Triggers>
<EventTrigger RoutedEvent="Canvas.Loaded">
<BeginStoryboard>
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="validationTooltip"
Storyboard.TargetProperty="IsHitTestVisible">
<DiscreteObjectKeyFrame KeyTime="0">
<DiscreteObjectKeyFrame.Value>
<System:Boolean>true</System:Boolean>
</DiscreteObjectKeyFrame.Value>
</DiscreteObjectKeyFrame>
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</BeginStoryboard>
</EventTrigger>
</ToolTip.Triggers>
</ToolTip>
</ToolTipService.ToolTip>
<Grid Height="12"
HorizontalAlignment="Right"
Margin="1,-4,-4,0"
VerticalAlignment="Top"
Width="12"
Background="Transparent">
</Grid>
</Border>
<Popup x:Name="Popup"
Margin="0,1,0,0">
<Border x:Name="PopupBorder"
Height="Auto"
HorizontalAlignment="Stretch"
CornerRadius="3"
BorderBrush="#FFC1C1C1"
BorderThickness="0,0,1,1">
<Border.Background>
<LinearGradientBrush EndPoint="0.5,1"
StartPoint="0.5,0">
<GradientStop Color="#FFFFFFFF"
Offset="0" />
<GradientStop Color="#FFFEFEFE"
Offset="1" />
</LinearGradientBrush>
</Border.Background>
<ScrollViewer x:Name="ScrollViewer"
BorderThickness="0"
Padding="1">
<ItemsPresenter />
</ScrollViewer>
</Border>
</Popup>
<ContentControl x:Name="HeaderText" Foreground="{TemplateBinding Foreground}" VerticalAlignment="Center" HorizontalAlignment="Center" >
<ContentPresenter x:Name="contentPresenter"
HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
Margin="{TemplateBinding Padding}"
VerticalAlignment="{TemplateBinding VerticalContentAlignment}">
<ContentPresenter.Effect>
<DropShadowEffect BlurRadius="0"
Color="#FF666666"
Direction="90"
ShadowDepth="1"/>
</ContentPresenter.Effect>
</ContentPresenter>
</ContentControl>
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="CommonStates">
<VisualState x:Name="Normal">
<Storyboard>
</Storyboard>
</VisualState>
<VisualState x:Name="MouseOver" >
<!--<Storyboard>
<ColorAnimation
Storyboard.TargetName="HeaderText"
Storyboard.TargetProperty="(Control.Foreground).(SolidColorBrush.Color)"
Duration="0" To="#FF000000"/>
</Storyboard>-->
<Storyboard>
<ColorAnimationUsingKeyFrames BeginTime="00:00:00"
Storyboard.TargetName="Content"
Storyboard.TargetProperty="(TextBlock.Foreground).(SolidColorBrush.Color)">
<SplineColorKeyFrame KeyTime="00:00:00.4000000" Value="#FFFF0000"/>
</ColorAnimationUsingKeyFrames>-->
<!--<ColorAnimation
BeginTime="00:00:00"
Duration="00:00:00.0010000"
From="#FFFFFFFF" To="#FF000000"
Storyboard.TargetName="Content"
Storyboard.TargetProperty="(UIElement.Foreground).Color"
/>-->
<ColorAnimation
BeginTime="00:00:00"
Duration="00:00:00.0010000"
From="#FFFFFFFF" To="#FF000000"
Storyboard.TargetName="Content"
Storyboard.TargetProperty="(TextBlock.Foreground).Color"
/>
</Storyboard>
</VisualState>
<VisualState x:Name="Disabled">
<Storyboard>
<DoubleAnimationUsingKeyFrames Storyboard.TargetName="DisabledVisualElement"
Storyboard.TargetProperty="(UIElement.Opacity)">
<SplineDoubleKeyFrame KeyTime="00:00:00"
Value=".55" />
</DoubleAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
</VisualStateGroup>
<VisualStateGroup x:Name="FocusStates">
<VisualState x:Name="Focused">
<Storyboard>
<DoubleAnimationUsingKeyFrames Storyboard.TargetName="FocusVisualElement"
Storyboard.TargetProperty="(UIElement.Opacity)">
<SplineDoubleKeyFrame KeyTime="00:00:00"
Value="1" />
</DoubleAnimationUsingKeyFrames>
<ColorAnimationUsingKeyFrames BeginTime="00:00:00"
Storyboard.TargetName="HeaderText"
Storyboard.TargetProperty="(TextBlock.Foreground).(SolidColorBrush.Color)">
<SplineColorKeyFrame KeyTime="00:00:00.4000000" Value="#FFFF0000"/>
</ColorAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="Unfocused" />
<VisualState x:Name="FocusedDropDown">
<Storyboard>
<DoubleAnimationUsingKeyFrames BeginTime="00:00:00"
Duration="00:00:00.0010000"
Storyboard.TargetName="TextTextBlock"
Storyboard.TargetProperty="(UIElement.Effect).(DropShadowEffect.Direction)">
<EasingDoubleKeyFrame KeyTime="00:00:00"
Value="-90" />
</DoubleAnimationUsingKeyFrames>
<ColorAnimationUsingKeyFrames BeginTime="00:00:00"
Duration="00:00:00.0010000"
Storyboard.TargetName="TextTextBlock"
Storyboard.TargetProperty="(UIElement.Effect).(DropShadowEffect.Color)">
<EasingColorKeyFrame KeyTime="00:00:00"
Value="#FF333333" />
</ColorAnimationUsingKeyFrames>
<DoubleAnimationUsingKeyFrames BeginTime="00:00:00"
Duration="00:00:00.0010000"
Storyboard.TargetName="TextTextBlock"
Storyboard.TargetProperty="(UIElement.Effect).(DropShadowEffect.ShadowDepth)">
<EasingDoubleKeyFrame KeyTime="00:00:00"
Value="1" />
</DoubleAnimationUsingKeyFrames>
<DoubleAnimationUsingKeyFrames BeginTime="00:00:00"
Duration="00:00:00.0010000"
Storyboard.TargetName="TextTextBlock"
Storyboard.TargetProperty="(UIElement.Effect).(DropShadowEffect.BlurRadius)">
<EasingDoubleKeyFrame KeyTime="00:00:00"
Value="2" />
</DoubleAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Duration="00:00:00"
Storyboard.TargetName="PopupBorder"
Storyboard.TargetProperty="(UIElement.Visibility)">
<DiscreteObjectKeyFrame KeyTime="00:00:00">
<DiscreteObjectKeyFrame.Value>
<Visibility>Visible</Visibility>
</DiscreteObjectKeyFrame.Value>
</DiscreteObjectKeyFrame>
</ObjectAnimationUsingKeyFrames>
<!--<ColorAnimation
BeginTime="00:00:00"
Duration="00:00:00.0010000"
Storyboard.TargetName="Content"
Storyboard.TargetProperty="(UIElement.Foreground).(SolidColorBrush.Color)"
From="White" To="Black"
/>-->
<ColorAnimationUsingKeyFrames BeginTime="00:00:00"
Storyboard.TargetName="HeaderText"
Storyboard.TargetProperty="(TextBlock.Foreground).(SolidColorBrush.Color)">
<SplineColorKeyFrame KeyTime="00:00:00.4000000" Value="#FFFF0000"/>
</ColorAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
</VisualStateGroup>
<VisualStateGroup x:Name="ValidationStates">
<VisualState x:Name="Valid" />
<VisualState x:Name="InvalidUnfocused">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="ValidationErrorElement"
Storyboard.TargetProperty="Visibility">
<DiscreteObjectKeyFrame KeyTime="0">
<DiscreteObjectKeyFrame.Value>
<Visibility>Visible</Visibility>
</DiscreteObjectKeyFrame.Value>
</DiscreteObjectKeyFrame>
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="InvalidFocused">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="ValidationErrorElement"
Storyboard.TargetProperty="Visibility">
<DiscreteObjectKeyFrame KeyTime="0">
<DiscreteObjectKeyFrame.Value>
<Visibility>Visible</Visibility>
</DiscreteObjectKeyFrame.Value>
</DiscreteObjectKeyFrame>
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="validationTooltip"
Storyboard.TargetProperty="IsOpen">
<DiscreteObjectKeyFrame KeyTime="0">
<DiscreteObjectKeyFrame.Value>
<System:Boolean>True</System:Boolean>
</DiscreteObjectKeyFrame.Value>
</DiscreteObjectKeyFrame>
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
鼠标
悬停的<Trigger Property="IsMouseOver" Value="True">。
WPF：向下更改鼠标左键边框的背景颜色以进行鼠标单击
嘿伙计们.. 我可以自己解决！错误是：
Storyboard.TargetName="Content"...当然应该指的是"textBlock"......希望也能对其他人有所帮助...