Windows Phone 8.1 NavigationService.navigate不工作

我有一個NavigationService問題。當我點擊按鈕時，我的應用程序總是結束，而不必被重定向到另一個頁面。我在我的項目中多次使用NavigationService，它運行良好，只是在這種情況下不起作用。Windows Phone 8.1 NavigationService.navigate不工作

這是我的XAML：

<phone:PhoneApplicationPage 
x:Class="FaceDetectionEx.FaceDetection" 
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
xmlns:phone="clr-namespace:Microsoft.Phone.Controls;assembly=Microsoft.Phone" 
xmlns:shell="clr-namespace:Microsoft.Phone.Shell;assembly=Microsoft.Phone" 
xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
FontFamily="{StaticResource PhoneFontFamilyNormal}" 
FontSize="{StaticResource PhoneFontSizeNormal}" 
Foreground="{StaticResource PhoneForegroundBrush}" 
SupportedOrientations="PortraitOrLandscape" Orientation="Portrait" 
mc:Ignorable="d" 
xmlns:CamControl="clr-namespace:FaceDetectionEx" 
shell:SystemTray.IsVisible="False"> 

<!--LayoutRoot is the root grid where all page content is placed--> 
<Grid x:Name="LayoutRoot" Background="Transparent"> 
    <Grid.RowDefinitions> 
     <RowDefinition Height="Auto"/> 
     <RowDefinition Height="*"/> 
    </Grid.RowDefinitions> 

    <!--ContentPanel - place additional content here--> 
    <Grid x:Name="ContentPanel" Margin="0,10,0,21" MouseLeftButtonDown="cameraViewer_MouseLeftButtonDown_1" MouseLeftButtonUp="cameraViewer_MouseLeftButtonUp_1"> 

     <CamControl:CameraViewer x:Name="cameraViewer"> 


     </CamControl:CameraViewer> 

     <Canvas x:Name="cnvsFaceRegions" Width="480" Height="800" HorizontalAlignment="Center" VerticalAlignment="Center"> 

     </Canvas> 

     <StackPanel x:Name="sck_Mask" VerticalAlignment="Center" HorizontalAlignment="Center" Margin="12,0,12,0" Width="600"> 
      <TextBlock x:Name="cameraResolution" Visibility="Collapsed" TextWrapping="Wrap" Text="" FontSize="30"></TextBlock> 
     </StackPanel> 

    </Grid> 
    <Grid> 
     <Button Content="Back to Menu" Background="Black" HorizontalAlignment="Left" Margin="279,718,0,0" VerticalAlignment="Top" Visibility="Visible" Click="Button_Click_1" Width="201"/> 
    </Grid> 
</Grid>

private void Button_Click_1(object sender, RoutedEventArgs e) 
    {      
     NavigationService.Navigate(new Uri("/MyFaceDetection;component/MainPage.xaml", UriKind.RelativeOrAbsolute));     
    }

謝謝你的建議。

來源

2014-12-06 Fačko

您是否在應用程序中有名爲MyFaceDetection的程序集（項目引用），並且它是否具有此類組件？嘗試調試的一種方法是手動嘗試並在代碼中創建'MainPage'類（'var p = new MyFaceDetection.MainPage（）;'），並查看它是否提供了更多信息。 – 2014-12-08 00:17:01

在Windows電話8.1，頁面導航的方法是：

Frame.Navigate（typeof運算（的MainPage））;

來源

2014-12-08 10:15:46

Windows Phone 8.1 NavigationService.navigate不工作

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