2

请有人帮帮我。

我在 ListBox ItemsPanelTemplate 中设置了 WrapPanel。另外，我已经设置了ScrollViewer.CanContentScroll="True".

但是为什么列表框项目没有逐项向上/向下滚动？滚动样式仍然是 PIXEL。

谁能帮我？

<Grid>
    <ListBox x:Name="testListbox" ScrollViewer.CanContentScroll="True">
        <ListBox.ItemsPanel>
            <ItemsPanelTemplate>
                <WrapPanel Width="200" ScrollViewer.CanContentScroll="True"/>
            </ItemsPanelTemplate>
        </ListBox.ItemsPanel>


        <ListBoxItem Background="LimeGreen" BorderBrush="Black" BorderThickness="3" ScrollViewer.CanContentScroll="True">
            <Image Height="50" Width="80" ScrollViewer.CanContentScroll="True"/>
        </ListBoxItem>

        <ListBoxItem Background="LimeGreen" BorderBrush="Black" BorderThickness="3" ScrollViewer.CanContentScroll="True">
            <Image Height="50" Width="80" ScrollViewer.CanContentScroll="True"/>
        </ListBoxItem>

        <ListBoxItem Background="LimeGreen" BorderBrush="Black" BorderThickness="3" ScrollViewer.CanContentScroll="True">
            <Image Height="50" Width="80" ScrollViewer.CanContentScroll="True"/>
        </ListBoxItem>

        <ListBoxItem Background="LimeGreen" BorderBrush="Black" BorderThickness="3" ScrollViewer.CanContentScroll="True">
            <Image Height="50" Width="80" ScrollViewer.CanContentScroll="True"/>
        </ListBoxItem>

        <ListBoxItem Background="LimeGreen" BorderBrush="Black" BorderThickness="3" ScrollViewer.CanContentScroll="True">
            <Image Height="50" Width="80" ScrollViewer.CanContentScroll="True"/>
        </ListBoxItem>

        <ListBoxItem Background="LimeGreen" BorderBrush="Black" BorderThickness="3" ScrollViewer.CanContentScroll="True">
            <Image Height="50" Width="80" ScrollViewer.CanContentScroll="True"/>
        </ListBoxItem>

        <ListBoxItem Background="LimeGreen" BorderBrush="Black" BorderThickness="3" ScrollViewer.CanContentScroll="True">
            <Image Height="50" Width="80" ScrollViewer.CanContentScroll="True"/>
        </ListBoxItem>

        <ListBoxItem Background="LimeGreen" BorderBrush="Black" BorderThickness="3" ScrollViewer.CanContentScroll="True">
            <Image Height="50" Width="80" ScrollViewer.CanContentScroll="True"/>
        </ListBoxItem>

        <ListBoxItem Background="LimeGreen" BorderBrush="Black" BorderThickness="3" ScrollViewer.CanContentScroll="True">
            <Image Height="50" Width="80" ScrollViewer.CanContentScroll="True"/>
        </ListBoxItem>

        <ListBoxItem Background="LimeGreen" BorderBrush="Black" BorderThickness="3" ScrollViewer.CanContentScroll="True">
            <Image Height="50" Width="80" ScrollViewer.CanContentScroll="True"/>
        </ListBoxItem>

        <ListBoxItem Background="LimeGreen" BorderBrush="Black" BorderThickness="3" ScrollViewer.CanContentScroll="True">
            <Image Height="50" Width="80" ScrollViewer.CanContentScroll="True"/>
        </ListBoxItem>

        <ListBoxItem Background="LimeGreen" BorderBrush="Black" BorderThickness="3" ScrollViewer.CanContentScroll="True">
            <Image Height="50" Width="80" ScrollViewer.CanContentScroll="True"/>
        </ListBoxItem>

        <ListBoxItem Background="LimeGreen" BorderBrush="Black" BorderThickness="3" ScrollViewer.CanContentScroll="True">
            <Image Height="50" Width="80" ScrollViewer.CanContentScroll="True"/>
        </ListBoxItem>

        <ListBoxItem Background="LimeGreen" BorderBrush="Black" BorderThickness="3" ScrollViewer.CanContentScroll="True">
            <Image Height="50" Width="80" ScrollViewer.CanContentScroll="True"/>
        </ListBoxItem>

        <ListBoxItem Background="LimeGreen" BorderBrush="Black" BorderThickness="3" ScrollViewer.CanContentScroll="True">
            <Image Height="50" Width="80" ScrollViewer.CanContentScroll="True"/>
        </ListBoxItem>

        <ListBoxItem Background="LimeGreen" BorderBrush="Black" BorderThickness="3" ScrollViewer.CanContentScroll="True">
            <Image Height="50" Width="80" ScrollViewer.CanContentScroll="True"/>
        </ListBoxItem>

    </ListBox>

</Grid>
4

2 回答 2

1

包装面板在设计时并未考虑到此功能（逻辑滚动）。您将需要创建一个派生自 wrappanel 类的新面板对象，然后实现 IScrollInfo 接口以实现您正在寻找的结果。

于 2009-11-19T15:53:27.133 回答
0

我想我可能会提供帮助，尽管我不确定您要达到的目标。你可以说得更详细点吗; 您是否试图让每个 ListBoxItem 具有滚动能力 - 对于它的内容？

由于您无法将 ScrollViewer 添加到 ItemPanelTemplate，您是否考虑过将 ScrollViewer 添加到各个 ListBoxItems：

例子：

<ListBoxItem Background="LimeGreen" BorderBrush="Black" BorderThickness="3" ScrollViewer.CanContentScroll="True">
                <ScrollViewer>
                    <Image Height="50" Width="80" ScrollViewer.CanContentScroll="True"/> 
                </ScrollViewer>
            </ListBoxItem>

有关更多 wpf/xaml 帮助，我发现这个站点非常好：www.YourCodeFactory.com

于 2009-10-21T13:38:28.020 回答