C# 按钮上未触发操纵完成事件
在我的Windows Phone 8.1通用应用程序中,我有一个C# 按钮上未触发操纵完成事件,c#,windows-phone-8.1,C#,Windows Phone 8.1,在我的Windows Phone 8.1通用应用程序中,我有一个列表视图,在项目模板中有一个按钮,我需要查看该按钮的操作开始和操作完成事件何时触发。当前manufactionstarted工作正常,但manufactioncompleted不工作。有人能解释一下原因吗 SnapsPage.xaml <Grid Grid.Row="0" Background="#88686868"> <Grid.RowDefinitions> <RowDefi
列表视图
,在项目模板
中有一个按钮,我需要查看该按钮的操作开始
和操作完成
事件何时触发。当前manufactionstarted
工作正常,但manufactioncompleted
不工作。有人能解释一下原因吗
SnapsPage.xaml
<Grid Grid.Row="0" Background="#88686868">
<Grid.RowDefinitions>
<RowDefinition Height="130" />
<RowDefinition Height="*" />
</Grid.RowDefinitions>
<StackPanel Grid.Row="0" Orientation="Vertical" Margin="20,0,0,0">
<TextBlock Text="{Binding Path=Manager.Account.Username, FallbackValue='loading...'}" Margin="0,12,0,0" Style="{ThemeResource HeaderTextBlockStyle}"/>
<TextBlock x:Uid="Snaps" Text="SNAPS" Style="{ThemeResource TitleTextBlockStyle}" Typography.Capitals="SmallCaps"/>
</StackPanel>
<ScrollViewer x:Name="ScrollViewer" VerticalScrollBarVisibility="Auto" HorizontalScrollBarVisibility="Disabled"
Padding="0,0,0,20" Grid.Row="1" HorizontalContentAlignment="Stretch">
<ListView HorizontalContentAlignment="Stretch"
ItemsSource="{Binding Path=Manager.Account.Snaps}">
<ListView.ItemTemplate>
<DataTemplate>
<Button x:Name="ButtonSnap" Style="{StaticResource BasicEmptyButtonStyle}"
ManipulationStarting="ButtonSnap_OnManipulationStarting"
ManipulationCompleted="ButtonSnap_OnManipulationCompleted"
ManipulationMode="All"
Command="{Binding ElementName=ItemsControl, Path=DataContext.TryDownloadMediaCommand}"
CommandParameter="{Binding}">
<!-- Content Here -->
</Button>
</DataTemplate>
</ListView.ItemTemplate>
<ListView.ItemsPanel>
<ItemsPanelTemplate>
<VirtualizingStackPanel HorizontalAlignment="Stretch"></VirtualizingStackPanel>
</ItemsPanelTemplate>
</ListView.ItemsPanel>
</ListView>
</ScrollViewer>
</Grid>
<Grid Grid.Row="0" x:Name="MediaGrid" Background="#FF000000" IsHitTestVisible="False">
<Image x:Name="MediaImage" IsHitTestVisible="False"/>
<Grid Width="45" Height="45" Background="#99000000"
VerticalAlignment="Top" HorizontalAlignment="Right" Margin="25">
<TextBlock Text="10" VerticalAlignment="Center" HorizontalAlignment="Center" FontFamily="Segoe WP Semibold" FontSize="24" />
</Grid>
</Grid>
注意:我使用Windows Phone 8.1 XAML应用程序(不是Silverlight)进行了测试 该按钮具有系统的操纵模式,根据,这意味着您不应获取操纵事件 元素必须具有除None或System之外的OperationMode值才能作为操纵事件源
我会尝试一下,稍后再汇报。(也不使用Silverlight)
private void ButtonSnap_OnManipulationStarting(object sender, ManipulationStartingRoutedEventArgs e)
{
Debug.WriteLine("ButtonSnap_OnManipulationStarting");
var button = sender as Button;
if (button == null) return;
var snap = button.DataContext as Snap;
if (snap == null) return;
_relevantSnap = snap;
_isFingerDown = true;
_scrollYIndex = ScrollViewer.VerticalOffset;
_holdingTimer.Start();
}
private void ButtonSnap_OnManipulationCompleted(object sender, ManipulationCompletedRoutedEventArgs e)
{
Debug.WriteLine("ButtonSnap_OnManipulationCompleted");
_isFingerDown = false;
if (_isMediaOpen)
DisposeMediaTidily();
}