堆栈面板的水平滚动不起作用

Question

我尝试创建一个可滚动的水平 StackPanel，但我不太成功...

目前我的 StackPanel 的宽度为 auto（问题可能出在这里），其中包含一些项目，例如 grids.

现在，如果我的所有网格在 StackPanel 中都不可见（宽度太短），我将无法滚动。我已经尝试将 StackPanel 放在 ScrollViewer 中，但它没有也不行。

我该如何解决这个问题？

编辑这是我的代码：

    <StackPanel Height="85" Margin="0,0,200,15" VerticalAlignment="Bottom">
        <ScrollViewer HorizontalScrollBarVisibility="Visible" VerticalScrollBarVisibility="Disabled" HorizontalAlignment="Left" Height="85" CanContentScroll="True">
            <StackPanel x:Name="Film" Height="85" Width="Auto" Margin="0,0,0,0" Orientation="Horizontal" ScrollViewer.HorizontalScrollBarVisibility="Visible" CanHorizontallyScroll="True" ScrollViewer.VerticalScrollBarVisibility="Disabled" ScrollViewer.CanContentScroll="True" d:LayoutOverrides="TopPosition, BottomPosition">
                <StackPanel.Background>
                    <SolidColorBrush Color="{DynamicResource ButtonBackground}"/>
                </StackPanel.Background>
                <Grid Width="100" Background="Red"/>
                <Grid Width="100" Background="#FFFF0051"/>
                <Grid Width="100" Background="#FFB900FF"/>
                <Grid Width="100" Background="#FF002EFF"/>
                <Grid Width="100" Background="#FF00FFDC"/>
                <Grid Width="100" Background="#FF51FF00"/>
                <Grid Width="100" Background="Red"/>
            </StackPanel>
        </ScrollViewer>
    </StackPanel>

Answer 1

您应该像这样将 StackPanel 放入 ScrollViewer 中：

<ScrollViewer Height="85" VerticalAlignment="Bottom" Margin="0,0,200,15" VerticalScrollBarVisibility="Disabled" HorizontalScrollBarVisibility="Auto">
    <StackPanel x:Name="Film"  Orientation="Horizontal" >
        <StackPanel.Background>
            <SolidColorBrush Color="Black"/>
        </StackPanel.Background>
        <Grid Width="100" Background="Red"/>
        <Grid Width="100" Background="#FFFF0051"/>
        <Grid Width="100" Background="#FFB900FF"/>
        <Grid Width="100" Background="#FF002EFF"/>
        <Grid Width="100" Background="#FF00FFDC"/>
        <Grid Width="100" Background="#FF51FF00"/>
        <Grid Width="100" Background="Red"/>
    </StackPanel>
</ScrollViewer>

Answer 2

Currently I have my stackpanel with an auto width (and the problem is maybe here) that contains some items like grids.

这是你的问题。如果 StackPanel 的 Orientation 属性设置为 Horizontal，则 StackPanel 会使用无限水平 space 测量其子项，如果设置为 Vertical，则测量其无限垂直 space 。因此，您必须为 StackPanel 本身或 ScrollViewer 指定一个明确的宽度才能工作。

或者，您可以将 ScrollViewer 放在测量其子项的面板中，例如 Grid（但不是 StackPanel）。这适用于例如：

<Window x:Class="WpfApplication1.Window1"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    xmlns:local="clr-namespace:WpfApplication1"
    mc:Ignorable="d"
    Title="Window" Height="300" Width="300">
<Grid>
    <ScrollViewer HorizontalScrollBarVisibility="Visible" VerticalScrollBarVisibility="Disabled" HorizontalAlignment="Left" Height="85" CanContentScroll="True">
        <StackPanel x:Name="Film" Height="85" Width="Auto" Margin="0,0,0,0" Orientation="Horizontal" ScrollViewer.HorizontalScrollBarVisibility="Visible" CanHorizontallyScroll="True" ScrollViewer.VerticalScrollBarVisibility="Disabled" ScrollViewer.CanContentScroll="True" d:LayoutOverrides="TopPosition, BottomPosition">
            <StackPanel.Background>
                <SolidColorBrush Color="Yellow"/>
            </StackPanel.Background>
            <Grid Width="100" Background="Red"/>
            <Grid Width="100" Background="#FFFF0051"/>
            <Grid Width="100" Background="#FFB900FF"/>
            <Grid Width="100" Background="#FF002EFF"/>
            <Grid Width="100" Background="#FF00FFDC"/>
            <Grid Width="100" Background="#FF51FF00"/>
            <Grid Width="100" Background="Red"/>
        </StackPanel>
    </ScrollViewer>
</Grid>
</Window>

但这不是因为 StackPanel 被认为具有无限宽度：

<StackPanel>
    <ScrollViewer HorizontalScrollBarVisibility="Visible" VerticalScrollBarVisibility="Disabled" HorizontalAlignment="Left" Height="85" CanContentScroll="True">
        <StackPanel x:Name="Film" Height="85" Width="Auto" Margin="0,0,0,0" Orientation="Horizontal" ScrollViewer.HorizontalScrollBarVisibility="Visible" CanHorizontallyScroll="True" ScrollViewer.VerticalScrollBarVisibility="Disabled" ScrollViewer.CanContentScroll="True" d:LayoutOverrides="TopPosition, BottomPosition">
            <StackPanel.Background>
                <SolidColorBrush Color="Yellow"/>
            </StackPanel.Background>
            <Grid Width="100" Background="Red"/>
            <Grid Width="100" Background="#FFFF0051"/>
            <Grid Width="100" Background="#FFB900FF"/>
            <Grid Width="100" Background="#FF002EFF"/>
            <Grid Width="100" Background="#FF00FFDC"/>
            <Grid Width="100" Background="#FF51FF00"/>
            <Grid Width="100" Background="Red"/>
        </StackPanel>
    </ScrollViewer>
</StackPanel>

将 ScrollViewer 放在 StackPanel 中是个坏主意。

堆栈面板的水平滚动不起作用

Horizontal scroll for stackpanel doesn't work

c#

.net

wpf

scroll

stackpanel