【发布时间】：2017-10-17 19:22:23
【问题描述】：
我在 xaml 文件中为 Tab Control 和 TabItem 创建了样式。
当 TabControl 第一次在 window 上加载时，它会根据需要应用样式。 但是当我选择另一个 tabItem 时，它没有执行 IsSelection 属性样式。
选择时 : Path Stroke="blue" and background of Bd="yellow".
请帮我解决这个问题。
提前谢谢你。
<Style x:Key="SimpleTabItemStyle" TargetType="{x:Type TabControl}">
<Setter Property="Padding" Value="4,4,4,0"/>
<Setter Property="BorderThickness" Value="1"/>
<Setter Property="BorderBrush" Value="{DynamicResource WhiteColorBrush}"/>
<Setter Property="Background" Value="{DynamicResource NormalBrush}"/>
<Setter Property="HorizontalContentAlignment" Value="Center"/>
<Setter Property="VerticalContentAlignment" Value="Center"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type TabControl}">
<Grid ClipToBounds="true" SnapsToDevicePixels="true" KeyboardNavigation.TabNavigation="Local">
<Grid.ColumnDefinitions>
<ColumnDefinition x:Name="ColumnDefinition0" Width="480"/>
<ColumnDefinition x:Name="ColumnDefinition1" Width="0"/>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition x:Name="RowDefinition0" Height="30"/>
<RowDefinition x:Name="RowDefinition1" Height="*"/>
</Grid.RowDefinitions>
<TabPanel x:Name="HeaderPanel" IsItemsHost="true" Margin="2,2,2,0" KeyboardNavigation.TabIndex="1" Panel.ZIndex="1"/>
<Border x:Name="ContentPanel"
CornerRadius="0,5,5,5"
BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{DynamicResource NormalBrush}" KeyboardNavigation.DirectionalNavigation="Contained" Grid.Row="1" KeyboardNavigation.TabIndex="2" KeyboardNavigation.TabNavigation="Local">
<ContentPresenter x:Name="PART_SelectedContentHost" ContentSource="SelectedContent" Margin="{TemplateBinding Padding}" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
</Border>
</Grid>
<ControlTemplate.Triggers>
<Trigger Property="IsEnabled" Value="false">
<Setter Property="Foreground" Value="{DynamicResource WhiteColorBrush}"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
<Style x:Key="MediumTabItemStyle" TargetType="{x:Type TabItem}">
<Setter Property="HorizontalContentAlignment" Value="Stretch"/>
<Setter Property="Padding" Value="3,1"/>
<Setter Property="Focusable" Value="True"/>
<Setter Property="Width" Value="105px"/>
<Setter Property="VerticalContentAlignment" Value="Stretch"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type TabItem}" >
<Grid SnapsToDevicePixels="true" Height="32" Focusable="False">
<Path x:Name="Bd" Fill="{DynamicResource NormalBrush}" StrokeThickness="2" Stroke="Blue" Data="M32.112576,21.370581 C32.11147,19.654586 32.018481,10.83178 32.130291,
2.8647957 32.168301,0.15634975 32.890504,-0.063229885 33.673263,-0.10401306 33.673263,-0.10401306 46.603605,-0.10439528 46.603605,-0.10439528 48.464699,-0.081679943 48.572192,13.549447 50.678186,21.503142" Stretch="Fill" Width="105px" Cursor="Hand" />
<TextBlock x:Name="Content" Padding="1" TextWrapping="WrapWithOverflow" Width="95" Foreground="{DynamicResource BlackColorBrush}" HorizontalAlignment="Left" TextBlock.TextAlignment="Center" VerticalAlignment="center"
Text="{Binding Header, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type TabItem}}}" ToolTip="{Binding Header, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type TabItem}}}" TextTrimming="CharacterEllipsis"/>
</Grid>
<ControlTemplate.Triggers>
<Trigger Property="IsSelected" Value="False">
<Setter Property="ToolTip" TargetName="Content" Value="{Binding RelativeSource={RelativeSource AncestorType={x:Type TabItem},Mode=FindAncestor},Path=Header}"/>
<Setter Property="Fill" TargetName="Bd" Value="{DynamicResource UnSelectedBrush}"/>
<!--<Setter Property="TextTrimming" TargetName="Content" Value="CharacterEllipsis"/>-->
<Setter Property="Panel.ZIndex" Value="0"/>
<Setter Property="Stroke" TargetName="Bd" Value="{DynamicResource WhiteColorBrush}"/>
<Setter Property="Margin" Value="0,0,0,-1" TargetName="Bd"/>
</Trigger>
<Trigger Property="IsMouseOver" Value="True">
<Setter TargetName="Bd" Property="Opacity" Value="0.6"/>
<Setter Property="Cursor" TargetName="Bd" Value="Hand" />
</Trigger>
<Trigger Property="IsSelected" Value="True">
<Setter Property="Margin" Value="0,0,0,-3" TargetName="Bd"/>
<Setter Property="Fill" TargetName="Bd" Value="{DynamicResource NormalBrush}"/>
<Setter Property="Stroke" TargetName="Bd" Value="Yellow"/>
<Setter Property="StrokeThickness" TargetName="Bd" Value="2"/>
<!--<Setter Property="TextBlock.FontWeight" TargetName="Content" Value="DemiBold"/>-->
</Trigger>
<MultiTrigger>
<MultiTrigger.Conditions>
<Condition Property="IsSelected" Value="false"/>
<Condition Property="IsMouseOver" Value="true"/>
</MultiTrigger.Conditions>
<Setter Property="Margin" Value="-1" TargetName="Bd"/>
<Setter Property="Fill" TargetName="Bd" Value="{DynamicResource UnSelectedItemBrush}"/>
<Setter Property="Cursor" TargetName="Bd" Value="Hand"/>
<!--<Setter Property="TextBlock.FontWeight" TargetName="Content" Value="DemiBold"/>-->
</MultiTrigger>
<Trigger Property="IsEnabled" Value="false">
<Setter Property="Fill" TargetName="Bd" Value="{DynamicResource DisabledBackgroundBrush}"/>
<Setter Property="Foreground" TargetName="Content" Value="{DynamicResource WhiteColorBrush}"/>
<Setter Property="Cursor" TargetName="Bd" Value="Hand"/>
<Setter Property="Margin" Value="0,0,0,-3" TargetName="Bd"/>
<Setter Property="Fill" TargetName="Bd" Value="{DynamicResource NormalBrush}"/>
<Setter Property="Stroke" TargetName="Bd" Value="Yellow"/>
<Setter Property="StrokeThickness" TargetName="Bd" Value="2"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
【问题讨论】：
-
那么，你想实现：当item被选中时，Stroke为“蓝色”，背景为“黄色”？
-
是的，选择时触发器未执行@Iron
-
你的
NormalBrush好吗？ -
@iron 它是浅灰色的
-
在触发器
Trigger Property="IsSelected"中，您已将Stroke设置为Yellow，将Fill (Background)设置为NormalBrush，而不是“蓝色”和“黄色”。