Question

我有Listview，显示185列和15行。为了显示包含15行的185列，windows store app需要一些时间或UI被冻结。下面是Im用于显示数据的代码

<ListView x:Name="outerlstView"   
              Height="650" 
              Margin="2,24,10,10" Grid.Row="1"
                     Grid.Column="1" BorderThickness="1"    HorizontalAlignment="Stretch" VerticalAlignment="Stretch"

ItemsSource =“{Binding Data，Mode = TwoWay，UpdateSourceTrigger = PropertyChanged}” ScrollViewer.HorizontalScrollBarVisibility = “可见” ScrollViewer.HorizontalScrollMode =“已启用”ScrollViewer.VerticalScrollBarVisibility =“Auto”
SelectionMode =“None”ShowsScrollingPlaceholders =“True”IsZoomedInView =“False” IsSwipeEnabled =“False”IsItemClickEnabled =“False” ItemContainerStyle =“{StaticResource LvItemStyle}” Orientation =“Vertical”VirtualizingStackPanel.VirtualizationMode =“Standard”/＆gt; ShowsScrollingPlaceholders = “真” ＆GT; Height =“{Binding Path = Tag，RelativeSource = {RelativeSource Mode = Self}，Converter = {StaticResource RowtoHeightConverter}}”＆gt;

上面的代码里面有listview，里面是另一个listview。当我尝试加载列表＆gt;列表视图需要花费太多时间。当我加载包含185列的100行时，应用程序崩溃了一段时间。

我尝试将Itemtemplate stye控件替换为Itemstackpanel，性能良好。数据加载并在屏幕上显示得更快，但我没有看到水平滚动

以前的代码

  <ListView.ItemsPanel>
            <ItemsPanelTemplate>
                <StackPanel  
                            Orientation="Vertical" VirtualizingStackPanel.VirtualizationMode="Standard"/>
            </ItemsPanelTemplate>
        </ListView.ItemsPanel>
        <ListView.ItemTemplate>

当我修改为<ListView.ItemsPanel> <ItemsPanelTemplate> <ItemsStackPanel Margin="0,0,0,0" Width="Auto" Orientation="Horizontal" Height="35" VirtualizingStackPanel.VirtualizationMode="Standard"/> </ItemsPanelTemplate> </ListView.ItemsPanel>

时

我没有看到启用水平滚动条。任何人都可以建议我如何启用默认情况下启用水平滚动条到Windows商店应用程序中的Itemstackpanel。看起来像是这个控件的bug或者使用Horizontal Scrollbar解决ItemsStackpanel。

Answer 1

如果您的ItensSource是具有属性Name和属性Price的对象列表，例如：

<ListView ItemsSource="{Binding Here_your_DataSource}" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" ScrollViewer.HorizontalScrollBarVisibility="Visible" ScrollViewer.VerticalScrollBarVisibility="Visible"  >

        <ListView.ItemsPanel>
            <ItemsPanelTemplate> 
                <WrapGrid Orientation="Horizontal" MaximumRowsOrColumns="15"/>
            </ItemsPanelTemplate>
        </ListView.ItemsPanel>

        <ListView.ItemTemplate>
            <DataTemplate>

                <!--Here u design your item template-->
                <StackPanel Background="Blue" Width="100" Height="100">
                    <TextBlock Text="{Binding Name}"></TextBlock>
                    <TextBlock Text="{Binding Price}"></TextBlock>
                </StackPanel>

            </DataTemplate>
        </ListView.ItemTemplate>

</ListView>

Windows Store ListView ItemStackPanel水平滚动条不可见

1 个答案: