Question

所以我开始学习UWP编程并学习如何使用我使用此链接的滑动方法：Swipe Tutorial 但是在按照他们的步骤操作后，我开始收到以下错误：无法在索引0处添加子项。以及我们突出显示的以下代码行

       <SwipeItems x:Key="RevealOptions" Mode="Reveal">
            <SwipeItem Text="Touch it" IconSource="{StaticResource TouchIcon}"/>
            <SwipeItem Text="Eat it" IconSource="{StaticResource EatIcon}"/>
        </SwipeItems>
        <SwipeItems x:Key="ExecuteBuying" Mode="Execute">
            <SwipeItem Text="Buy it" IconSource="{StaticResource BuyIcon}"/>
        </SwipeItems>

这里是完整的代码：

 <Page.Resources>
        <SymbolIconSource x:Key="TouchIcon" Symbol="View"/>
        <SymbolIconSource x:Key="EatIcon" Symbol="Emoji"/>
        <SymbolIconSource x:Key="BuyIcon" Symbol="Like"/>

        <SwipeItems x:Key="RevealOptions" Mode="Reveal">
            <SwipeItem Text="Touch it" IconSource="{StaticResource TouchIcon}"/>
            <SwipeItem Text="Eat it" IconSource="{StaticResource EatIcon}"/>
        </SwipeItems>
        <SwipeItems x:Key="ExecuteBuying" Mode="Execute">
            <SwipeItem Text="Buy it" IconSource="{StaticResource BuyIcon}"/>
        </SwipeItems>
    </Page.Resources>
    <Grid>
        <SwipeControl Name="MySwipeContainer"
                      LeftItems="{StaticResource RevealOptions}"
                      RightItems="{StaticResource ExecuteBuying}">
            <ListView HorizontalAlignment="Center" VerticalAlignment="Center">
                <ListViewItem Content="Apple" FontSize="36"/>
                <ListViewItem Content="Banana" FontSize="36"/>
                <ListViewItem Content="Grape" FontSize="36"/>
                <ListViewItem Content="Lemon" FontSize="36"/>
                <ListViewItem Content="Melone" FontSize="36"/>
                <ListViewItem Content="Watermelon" FontSize="36"/>
            </ListView>
        </SwipeControl>
    </Grid>

Answer 1

从文档中，它将SwipeControl放在DataTemplate中，因此，您需要使用SwipeControl包装listviewitem而不是ListView。您的代码需要以下内容：

<ListView HorizontalAlignment="Center" VerticalAlignment="Center">
            <SwipeControl 
                  LeftItems="{StaticResource RevealOptions}"
                  RightItems="{StaticResource ExecuteBuying}">
                <ListViewItem Content="Apple" FontSize="36"/>
            </SwipeControl>
            <SwipeControl 
                  LeftItems="{StaticResource RevealOptions}"
                  RightItems="{StaticResource ExecuteBuying}">
                <ListViewItem Content="Banana" FontSize="36"/>
            </SwipeControl>
            <SwipeControl 
                  LeftItems="{StaticResource RevealOptions}"
                  RightItems="{StaticResource ExecuteBuying}">
                <ListViewItem Content="Grape" FontSize="36"/>
            </SwipeControl>
            <SwipeControl 
                  LeftItems="{StaticResource RevealOptions}"
                  RightItems="{StaticResource ExecuteBuying}">
                <ListViewItem Content="Lemon" FontSize="36"/>
            </SwipeControl>
            <SwipeControl 
                  LeftItems="{StaticResource RevealOptions}"
                  RightItems="{StaticResource ExecuteBuying}">
            <ListViewItem Content="Melone" FontSize="36"/>
            </SwipeControl>
            <SwipeControl
                  LeftItems="{StaticResource RevealOptions}"
                  RightItems="{StaticResource ExecuteBuying}">
                <ListViewItem Content="Watermelon" FontSize="36"/>
            </SwipeControl>
</ListView>

无法在索引0处添加子项

1 个答案: