Question

我正在尝试实现一个解决方案，其中当前选择的PivotItem标题背景是PhoneAccentBrush，但所有其他数据包标题都是默认颜色，如PhoneDisabledBrush。这样，当用户向左或向右滑动时，PivotItem将进入视图，其背景颜色将更改为活动的PhoneAccentBrush，并且所有其他数据透视表头将保留默认的背景颜色。我怎么能这样做？

目前我已经实现了我想要的，除了选定/未选择的枢轴项目背景

<phone:PhoneApplicationPage.Resources>
    <Style x:Key="PivotStyle1" TargetType="phone:Pivot">
        <Setter Property="Margin" Value="0"/>
        <Setter Property="Padding" Value="0"/>
        <!--<Setter Property="Foreground" Value="{StaticResource PhoneForegroundBrush}"/>-->
        <Setter Property="Foreground" Value="white"/>
        <Setter Property="Background" Value="Transparent"/>
        <Setter Property="ItemsPanel">
            <Setter.Value>
                <ItemsPanelTemplate>
                    <Grid/>
                </ItemsPanelTemplate>
            </Setter.Value>
        </Setter>
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="phone:Pivot">
                    <Grid HorizontalAlignment="{TemplateBinding HorizontalAlignment}" VerticalAlignment="{TemplateBinding VerticalAlignment}">
                        <Grid.RowDefinitions>
                            <RowDefinition Height="Auto"/>
                            <RowDefinition Height="Auto"/>
                            <RowDefinition Height="*"/>
                        </Grid.RowDefinitions>
                        <Grid Background="{StaticResource PhoneAccentBrush}" CacheMode="BitmapCache" Grid.RowSpan="2" />
                        <Grid Background="{TemplateBinding Background}" CacheMode="BitmapCache" Grid.Row="2" />
                        <ContentPresenter ContentTemplate="{TemplateBinding TitleTemplate}" Content="{TemplateBinding Title}" Margin="24,17,0,-7"/>
                        <Primitives:PivotHeadersControl x:Name="HeadersListElement" Grid.Row="1"/>
                        <ItemsPresenter x:Name="PivotItemPresenter" Margin="{TemplateBinding Padding}" Grid.Row="2"/>
                    </Grid>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>

</phone:PhoneApplicationPage.Resources>

...

<!--Pivot Control-->
<phone:Pivot x:Name="Pivot" Style="{StaticResource PivotStyle1}">
    ...
</phone:Pivot>

看起来像..

enter image description here

*更新

以下更新中的StackTrace异常.. InvalidOperationException: Cannot resolve TargetProperty (Border.Background).(SolidColorBrush.Color) on specified object.

<Style x:Key="PivotHeaderItemStyle1" TargetType="Primitives:PivotHeaderItem">
        <Setter Property="Background" Value="Transparent"/>
        <Setter Property="Padding" Value="21,0,1,0"/>
        <Setter Property="Margin" Value="0"/>
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="Primitives:PivotHeaderItem">
                    <Grid>
                        <VisualStateManager.VisualStateGroups>
                            <VisualStateGroup x:Name="SelectionStates">
                                <VisualState x:Name="Unselected">
                                    <Storyboard>
                                        <ColorAnimation Duration="0" Storyboard.TargetName="myback" Storyboard.TargetProperty="(Border.Background).(SolidColorBrush.Color)" To="DarkGrey"/>
                                    </Storyboard>
                                </VisualState>
                                <VisualState x:Name="Selected">
                                    <Storyboard>
                                        <ColorAnimation Duration="0" Storyboard.TargetName="myback" Storyboard.TargetProperty="(Border.Background).(SolidColorBrush.Color)" To="Red"/>
                                    </Storyboard>
                                </VisualState>
                            </VisualStateGroup>
                        </VisualStateManager.VisualStateGroups>
                        <Border x:Name="myback">
                            <ContentControl x:Name="contentPresenter" ContentTemplate="{TemplateBinding ContentTemplate}" Content="{TemplateBinding Content}" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" Margin="{TemplateBinding Padding}" Opacity="{StaticResource PhonePivotUnselectedItemOpacity}"/>
                        </Border>
                    </Grid>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>

    <Style x:Key="PivotStyle1" TargetType="phone:Pivot">
        <Setter Property="Margin" Value="0"/>
        <Setter Property="Padding" Value="0"/>
        <Setter Property="Foreground" Value="{StaticResource PhoneForegroundBrush}"/>
        <Setter Property="Background" Value="Transparent"/>
        <Setter Property="ItemsPanel">
            <Setter.Value>
                <ItemsPanelTemplate>
                    <Grid/>
                </ItemsPanelTemplate>
            </Setter.Value>
        </Setter>
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="phone:Pivot">
                    <Grid HorizontalAlignment="{TemplateBinding HorizontalAlignment}" VerticalAlignment="{TemplateBinding VerticalAlignment}">
                        <Grid.RowDefinitions>
                            <RowDefinition Height="Auto"/>
                            <RowDefinition Height="Auto"/>
                            <RowDefinition Height="*"/>
                        </Grid.RowDefinitions>
                        <Grid Background="{TemplateBinding Background}" Grid.RowSpan="3"/>
                        <ContentControl x:Name="TitleElement" ContentTemplate="{TemplateBinding TitleTemplate}" Content="{TemplateBinding Title}" HorizontalAlignment="Left" Margin="24,17,0,-7" Style="{StaticResource PivotTitleStyle}"/>
                        <Primitives:PivotHeadersControl x:Name="HeadersListElement" Grid.Row="1" ItemContainerStyle="{StaticResource PivotHeaderItemStyle1}"/>
                        <ItemsPresenter x:Name="PivotItemPresenter" Margin="{TemplateBinding Padding}" Grid.Row="2"/>
                    </Grid>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>

Answer 1

K，好像你到了那里。这些行动需要避免代码......

我们只是为背景添加另一个故事板动画。我知道如何做到这一点的最简单方法就是添加边框。

在你的＆lt;周围添加一个边框ContentControl x：Name =＆＃34; contentPresenter＆＃34; /＆GT;所以它看起来像这样

<Border x:Name="myback" Background="{TemplateBinding Background}">
    <ContentControl x:Name="contentPresenter"/>
</Border>

现在让我们根据Selected State为它着色。添加您的其他Storyboard动画。

<VisualStateManager.VisualStateGroups>
    <VisualStateGroup x:Name="SelectionStates">
        <VisualState x:Name="Unselected">
            <Storyboard>
               <ColorAnimation Duration="0" Storyboard.TargetName="myback" Storyboard.TargetProperty="(Border.Background).(SolidColorBrush.Color)" To="DarkGrey"/>
            </Storyboard>
        </VisualState>
        <VisualState x:Name="Selected">
            <Storyboard>
                <ColorAnimation Duration="0" Storyboard.TargetName="myback" Storyboard.TargetProperty="(Border.Background).(SolidColorBrush.Color)" To="Red"/>
           </Storyboard>
        </VisualState>
    </VisualStateGroup>
</VisualStateManager.VisualStateGroups>

让我知道一切顺利：D

如何设置选定的数据透视表标题的样式

1 个答案: