我目前正在我的项目中使用Prism WinRT。
基于网络搜索，这是我尝试过的：
我发现Progress Bar有这个bug，我把它从我的数据模板中删除了，但我仍然看到了这个bug。
在初始加载时一切似乎都很好，但是当我根据用户选择的过滤器更改视图模型中的数据集合，并开始滚动时我会间歇性地点击此问题。在让用户滚动之前，我是否应该等待任何事件。
如果我使用stackPanel作为ItemsPanel，那么我不会看到这个错误，但随后我放弃了虚拟化功能，显示大型数据集需要永远。
我已经在应用程序中显示了代码，如果有人想要，我可以简化它。
<SemanticZoom.ZoomedInView>
<GridView Style="{StaticResource mainGridViewStyle}" ItemsSource="{Binding Source={StaticResource itemsViewSource}}" Name="itemsGridView" common:GridViewItemClickedCommand.Command="{Binding ItemClickedCommand}" />
</SemanticZoom.ZoomedInView>
<CollectionViewSource
x:Name="itemsViewSource"
Source="{Binding PageData}"
IsSourceGrouped="True"
ItemsPath="Contents"
/>
<Style x:Key="mainGridViewStyle" TargetType="GridView">
<Setter Property="AutomationProperties.AutomationId" Value="ItemsGridView"/>
<Setter Property="AutomationProperties.Name" Value="Items"/>
<Setter Property="TabIndex" Value="1"/>
<Setter Property="Padding" Value="120,0,0,50"/>
<Setter Property="SelectionMode" Value="Multiple"/>
<Setter Property="IsSwipeEnabled" Value="True"/>
<Setter Property="IsItemClickEnabled" Value="True"/>
<Setter Property="IsEnabled" Value="{Binding IsGridViewEnabled}"/>
<Setter Property="CanReorderItems" Value="False"/>
<Setter Property="CanDragItems" Value="False"/>
<Setter Property="Margin" Value="0"/>
<Setter Property="HorizontalContentAlignment" Value="Stretch"/>
<Setter Property="VerticalContentAlignment" Value="Stretch"/>
<Setter Property="ShowsScrollingPlaceholders" Value="True"/>
<Setter Property="ItemTemplateSelector" Value="{StaticResource gridViewTemplateSelector}"/>
<Setter Property="ScrollViewer.IsHorizontalScrollChainingEnabled" Value="False"/>
<Setter Property="GroupStyleSelector" Value="{StaticResource GridViewGroupStyleSelector}"/>
<Setter Property="ItemsPanel">
<Setter.Value>
<ItemsPanelTemplate>
<ItemsWrapGrid GroupPadding="0,0,80,0" />
</ItemsPanelTemplate>
</Setter.Value>
</Setter>
<Setter Property="Grid.Row" Value="1"/>
</Style>
<views:ViewTemplateSelector x:Key="gridViewTemplateSelector"
iconViewTemplate="{StaticResource iconViewTemplate}"
thumbnailViewTemplate="{StaticResource thumbnailViewTemplate}"/>
<DataTemplate x:Key="iconViewTemplate">
<Grid x:Name="itemMainGrid" HorizontalAlignment="Left" Width="200" Height="75" Background="White" Margin="0,0,5,5">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="75"/>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="90*"/>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
</Grid.RowDefinitions>
<ProgressRing x:Name="contentUpdatingProgressBar" Grid.RowSpan="3" Grid.ColumnSpan="2" Opacity="0.5" IsActive="{Binding IsContentUpdating}" Foreground="{StaticResource AppHeaderForeGroundColor}" Visibility="{Binding IsContentUpdating, Converter={StaticResource VisibilityConvertor}}">
</ProgressRing>
<Image x:Name="iconImage" Source="{Binding FileIconLink}" Stretch="UniformToFill" Grid.RowSpan="3" Margin="5" Width='75" Height ="75">
<interactivity:Interaction.Behaviors>
<core:EventTriggerBehavior EventName="ImageFailed">
<core:ChangePropertyAction PropertyName="Source" Value="{Binding FileIconLink}"/>
</core:EventTriggerBehavior>
</interactivity:Interaction.Behaviors>
</Image>
<TextBlock x:Name="contentName" Text="{Binding Name}" Margin="2" Style="{StaticResource CaptionTextBlockStyle}" Foreground="Black" Grid.Column="1" HorizontalAlignment="Left">
</TextBlock>
<TextBlock x:Name="contentSize" Text="{Binding FormattedSize,TargetNullValue=''}" Style="{StaticResource CaptionTextBlockStyle}" Foreground="Black" Margin="2" Grid.Column="1" Grid.Row="1" Visibility="{Binding FormattedSize, Converter={StaticResource SizeVisibilityConvertor}}" HorizontalAlignment="Right" VerticalAlignment="Bottom">
</TextBlock>
<StackPanel x:Name="transferStatusPanel" Grid.Row="2" Grid.Column="1" Orientation="Horizontal" >
<TextBlock Text="{Binding ContentStatus}" FontFamily="Segoe UI" FontWeight="Light" FontSize="8" Margin="2,0,2,0" Foreground="Black" Visibility="{Binding ContentStatus, Converter={StaticResource SizeVisibilityConvertor}}" HorizontalAlignment="Left">
</TextBlock>
<TextBlock Text="{Binding TransferProgress}" FontFamily="Segoe UI" FontWeight="Light" FontSize="8" Margin="2,0,1,0" Foreground="Black" Visibility="{Binding IsTransferActive, Converter={StaticResource VisibilityConvertor}}" HorizontalAlignment="Left">
</TextBlock>
<TextBlock Text=" %" FontFamily="Segoe UI" FontWeight="Light" FontSize="8" Margin="0,0,2,0" Foreground="Black" Visibility="{Binding IsTransferActive, Converter={StaticResource VisibilityConvertor}}" HorizontalAlignment="Left">
</TextBlock>
<!--ProgressBar Visibility="{Binding IsTransferActive, Converter={StaticResource VisibilityConvertor}}" Margin="2" Value="{Binding TransferProgress, FallbackValue=0}" Foreground="Blue" Background="Gray" FlowDirection="LeftToRight"/-->
</StackPanel>
</Grid>
</DataTemplate>
<DataTemplate x:Key="thumbnailViewTemplate">
<Grid x:Name="itemMainGrid" HorizontalAlignment="Left" Width="150" Height="150" Margin="0,0,5,5">
<Border Background="{ThemeResource ListViewItemPlaceholderBackgroundThemeBrush}">
<Image x:Name="iconImage" Source="{Binding ThumbnailLink}" Stretch="UniformToFill" Width='150" Height ="150">
<interactivity:Interaction.Behaviors>
<core:EventTriggerBehavior EventName="ImageFailed">
<core:ChangePropertyAction PropertyName="Source" Value="{Binding FileIconLink}"/>
</core:EventTriggerBehavior>
</interactivity:Interaction.Behaviors>
</Image>
</Border>
<StackPanel VerticalAlignment="Bottom" Background="{ThemeResource ListViewItemOverlayBackgroundThemeBrush}">
<ProgressRing x:Name="contentUpdatingProgressBar" Grid.ColumnSpan="2" Grid.RowSpan="4" IsActive="{Binding IsContentUpdating}" Foreground="{StaticResource AppHeaderForeGroundColor}" Visibility="{Binding IsContentUpdating, Converter={StaticResource VisibilityConvertor}}">
</ProgressRing>
<TextBlock x:Name="contentName" Text="{Binding Name}" Foreground="{ThemeResource ListViewItemOverlayForegroundThemeBrush}" Style="{StaticResource CaptionTextBlockStyle}" Margin="15,0,15,0">
</TextBlock>
<TextBlock x:Name="contentSize" Text="{Binding FormattedSize,TargetNullValue=''}" Foreground="{ThemeResource ListViewItemOverlaySecondaryForegroundThemeBrush}" Style="{StaticResource CaptionTextBlockStyle}" TextWrapping="NoWrap" Margin="15,0,15,10" HorizontalAlignment="Right" VerticalAlignment="Bottom">
</TextBlock>
<StackPanel x:Name="transferStatusPanel" Orientation="Horizontal" >
<TextBlock Text="{Binding ContentStatus}" FontFamily="Segoe UI" FontWeight="Light" FontSize="8" Margin="2,0,2,0" Foreground="Black" Visibility="{Binding ContentStatus, Converter={StaticResource SizeVisibilityConvertor}}" HorizontalAlignment="Left">
</TextBlock>
<TextBlock Text="{Binding TransferProgress}" FontFamily="Segoe UI" FontWeight="Light" FontSize="8" Margin="2,0,1,0" Foreground="Black" Visibility="{Binding IsTransferActive, Converter={StaticResource VisibilityConvertor}}" HorizontalAlignment="Left">
</TextBlock>
<TextBlock Text=" %" FontFamily="Segoe UI" FontWeight="Light" FontSize="8" Margin="0,0,2,0" Foreground="Black" Visibility="{Binding IsTransferActive, Converter={StaticResource VisibilityConvertor}}" HorizontalAlignment="Left">
</TextBlock>
<!--ProgressBar Visibility="{Binding IsTransferActive, Converter={StaticResource VisibilityConvertor}}" Margin="2" Value="{Binding TransferProgress, FallbackValue=0}" Foreground="Blue" Background="Gray" FlowDirection="LeftToRight"/-->
</StackPanel>
</Grid>
</DataTemplate>
<GroupStyle x:Key="gridViewGroupStyle" HidesIfEmpty="True">
<GroupStyle.HeaderTemplate>
<DataTemplate>
<Grid x:Name="headerGrid">
<Button x:Name="headerButton" Content='{Binding Name}' Background="Transparent" Foreground="AliceBlue" Margin="0" Padding="0,5,5,5" BorderThickness="0" Command="{Binding DataContext.HeaderCommand, ElementName=pageRoot}"
IsRightTapEnabled="False" IsHoldingEnabled="False" IsDoubleTapEnabled="False" CommandParameter="{Binding HeaderIdentifier}" FontFamily="Global User Interface" />
</Grid>
</DataTemplate>
</GroupStyle.HeaderTemplate>
</GroupStyle>
public class ViewTemplateSelector: DataTemplateSelector
{
public DataTemplate iconViewTemplate { get; set; }
public DataTemplate thumbnailViewTemplate { get; set; }
protected override DataTemplate SelectTemplateCore(object item, DependencyObject container)
{
if (Utilities.GridviewItemStyle == GridviewItemStyle.IconStyle)
return iconViewTemplate;
else
return thumbnailViewTemplate;
}
}
public class GridViewGroupStyleSelector : GroupStyleSelector
{
protected override GroupStyle SelectGroupStyleCore(object group, uint level)
{
return (GroupStyle)App.Current.Resources["gridViewGroupStyle"];
}
}
答案 0 :(得分：1)
所以我无法解决这个问题，但是使用不同的参数再次导航到同一页面（我调整了框架日志以不将这些条目添加到导航历史记录中）解决了这个问题。回收ui元素的某个地方正在引发一个循环。