我試圖創建一個觸發器,它在Visibility
爲Collapsed
時從選項卡導航中刪除TextBlock
。當可見性被摺疊時阻止切換到TextBlock
這是風格:
<Style x:Uid="Style_1" TargetType="TextBlock">
<Setter x:Uid="Setter_1" Property="TextOptions.TextFormattingMode" Value="{StaticResource TextFormattingMode}"/>
<Setter x:Uid="Setter_32" Property="TextOptions.TextRenderingMode" Value="{StaticResource TextRenderingMode}"/>
<Setter x:Uid="Setter_2" Property="TextBlock.FontFamily" Value="{StaticResource FontFamily}"/>
<Setter x:Uid="Setter_3" Property="SnapsToDevicePixels" Value="True"/>
<Setter x:Uid="Setter_4" Property="VerticalAlignment" Value="Center"/>
<Setter x:Uid="Setter_74" Property="UseLayoutRounding" Value="True"/>
<Setter x:Uid="Setter_5" Property="Foreground" Value="{StaticResource LabelForeground}"/>
<Setter x:Uid="Setter_7" Property="FontSize" Value="{StaticResource FontSize}"/>
<Style.Triggers>
<DataTrigger x:Uid="DataTrigger_2" Binding="{Binding Source={x:Static cs:ZoomLevel.Instance}, Path=ActualZoomLevelIsDefault}" Value="False">
<Setter x:Uid="Setter_33" Property="TextOptions.TextFormattingMode" Value="Ideal"/>
</DataTrigger>
<DataTrigger x:Uid="DataTrigger_100" Binding="{Binding RelativeSource={RelativeSource Mode=Self}, Path=Visibility}" Value="Collapsed">
<!--<Setter Property="IsEnabled" Value="False"/>-->
<!--<Setter Property="Control.IsTabStop" Value="False"/>-->
<Setter Property="KeyboardNavigation.TabNavigation" Value="None"/>
<Setter Property="KeyboardNavigation.IsTabStop" Value="False"/>
</DataTrigger>
</Style.Triggers>
</Style>
但仍的TextBlock獲得的焦點,如果我標籤到它。當我將注意力集中到TextBlock時,IsKeyboardFocusWithin爲true。我可以在我的觸發器中將IsEnabled設置爲false以使其工作,但我想知道爲什麼附加屬性不起作用。所以我的問題是:爲什麼KeyboardNavigation屬性不起作用?
例子:
<TextBlock x:Uid="TextBlock_2" Grid.Column="1" Grid.Row="1" Margin="3,3,0,0" HorizontalAlignment="Right" Visibility="Collapsed">
<Hyperlink x:Uid="Hyperlink_2" Command="{Binding SelectRoutingMethods}">
<Run x:Uid="Run_2" Text="{Binding ContactPreferences}"/>
</Hyperlink>
</TextBlock>
TextBlock的是tabable但仍然在我的例子中可見。
如何摺疊的TextBlock獲得焦點 – mm8
?我也想知道爲什麼會發生這種情況...... – Sybren
Collapse TextBlock is not visible,so not can happen。 – mm8