NavigationCommands.NavigateJournal 屬性

定義

命名空間:

System.Windows.Input

組件:

PresentationCore.dll

取得代表 Navigate Journal 命令的值。

public:
 static property System::Windows::Input::RoutedUICommand ^ NavigateJournal { System::Windows::Input::RoutedUICommand ^ get(); };

public static System.Windows.Input.RoutedUICommand NavigateJournal { get; }

static member NavigateJournal : System.Windows.Input.RoutedUICommand

Public Shared ReadOnly Property NavigateJournal As RoutedUICommand

屬性值

RoutedUICommand

路由的UI命令。

預設值
按鍵動作	N/A
UI 文字	巡覽日誌

範例

下列範例示範如何搭配 Frame使用 NavigateJournal 。 提供Frame實作，藉由巡覽至 的正向或後置堆棧Frame上的指定日誌專案，以回應NavigateJournal命令。 紀錄專案由 JournalEntryUnifiedViewConverter 提供至最上層 Navigate JournalMenuItem。 每個日誌項目都會系結至使用 命令的NavigateJournal子系MenuItem。

<Window
  xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
  xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">

  <Window.Resources>
    <!-- For NavigationCommands.NavigateJournal -->
    <JournalEntryUnifiedViewConverter x:Key="JournalEntryUnifiedViewConverter" />
      <!--Create a DataTemplate to display the navigation history-->
    <DataTemplate x:Key="journalMenuItemTemplate">
      <TextBlock>
        <TextBlock Text="{Binding (JournalEntryUnifiedViewConverter.JournalEntryPosition)}" />
        <TextBlock FontWeight="Bold" FontStyle="Italic">
          <TextBlock Margin="5,0,0,0">(</TextBlock>
          <TextBlock Text="{Binding JournalEntry.Name}"/>
          <TextBlock Margin="5,0,0,0">)</TextBlock>
        </TextBlock>
      </TextBlock>
    </DataTemplate>
      <!--Create a style so that all the MenuItems will use the NavigateJournal command-->
    <Style x:Key="journalMenuItemContainerStyle">
      <Setter Property="MenuItem.Command" Value="NavigationCommands.NavigateJournal" />
      <Setter Property="MenuItem.CommandTarget" Value="{Binding ElementName=frame}" />
      <Setter Property="MenuItem.CommandParameter" Value="{Binding RelativeSource={RelativeSource Self}}" />
    </Style>
  </Window.Resources>

<!-- Create the Navigation menu using the template and style defined in Window.Resources-->
<MenuItem
  Header="Navigate Journal"
  ItemTemplate="{StaticResource journalMenuItemTemplate}"
  ItemContainerStyle="{StaticResource journalMenuItemContainerStyle}" >
    <!--Set the ItemsSource to be the IEnumerable returned from the JournalEntryUnifiedViewConverter-->
  <MenuItem.ItemsSource>
    <MultiBinding Converter="{StaticResource JournalEntryUnifiedViewConverter}" >
      <Binding ElementName="frame" Path="BackStack"/>
      <Binding ElementName="frame" Path="ForwardStack"/>
    </MultiBinding>
  </MenuItem.ItemsSource>
</MenuItem>

<!-- The following Frame is used to process NavigationCommands.NavigateJournal commands -->
<Frame Name="frame" NavigationUIVisibility="Hidden" Source="Page1.xaml" />

</Window>

備註

此命令指出巡覽日誌的意圖。

Frame 和 NavigationWindow 實作回應 NavigateJournal 命令的支持，雖然您不需要使用它;在許多情況下，響應該命令的實作是應用程式寫入器的責任。

XAML Attribute Usage

<object property="NavigationCommands.NavigateJournal"/>  

另請參閱

• MediaCommands
• ApplicationCommands
• ComponentCommands
• EditingCommands
• RoutedCommand
• RoutedUICommand
• CommandBinding
• CommandManager