WPF-Scrollviewer中的列表框不会滚动项目

时间:2018-11-21 13:20:18

标签: wpf xaml listbox scrollbar scrollviewer

我在ListView中有许多UserControls。即使没有ScrollViewer,WPF仍以某种方式实现了水平滚动。当我尝试实现垂直滚动时,ScrollViewer呈灰色且无法使用。我尝试将ListView包装在ScrollViewer中,但它不会滚动。 即使删除ListView并仅尝试在其中放置带有Textboxes的StackPanel,ScrollViewer仍然被禁用。 有什么我想念的吗?

XAML:

<ScrollViewer VerticalScrollBarVisibility="Visible" CanContentScroll="True" 
Grid.Row="1" Grid.Column="1">
            <ListBox Margin="0,0,10,10" ItemsSource="{Binding Feeder}" 
Grid.RowSpan="3">
             <ListBox.ItemContainerStyle>
                 <Style TargetType="{x:Type ListBoxItem}">
                     <Setter Property="Focusable" Value="False"/>
                 </Style>
            </ListBox.ItemContainerStyle>
            <ListBox.ItemTemplate>
                <DataTemplate>
                    <local:FeederControl FeederName="{Binding FeederName}" 
AxisList="{Binding AxisList}"></local:FeederControl>
                </DataTemplate>
            </ListBox.ItemTemplate>
        </ListBox>
</ScrollViewer>

2 个答案:

答案 0 :(得分:0)

这对我来说很好。也许您没有显示其余的代码。这是我从您的示例中得出的结果,并且可以按预期工作...

XAML:

<Window x:Class="WPF_Playground.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow">
    <Grid>
        <ScrollViewer VerticalScrollBarVisibility="Auto" CanContentScroll="True">
            <ListBox ItemsSource="{Binding Items}">
                <ListBox.ItemContainerStyle>
                    <Style TargetType="{x:Type ListBoxItem}">
                        <Setter Property="Focusable" Value="False"/>
                    </Style>
                </ListBox.ItemContainerStyle>
                <ListBox.ItemTemplate>
                    <DataTemplate>
                        <TextBlock Text="{Binding Text}"/>
                    </DataTemplate>
                </ListBox.ItemTemplate>
            </ListBox>
        </ScrollViewer>
    </Grid>
</Window>

ViewModel:

using System.Collections.Generic;
using System.Windows;

namespace WPF_Playground
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {
        public IEnumerable<Item> Items => new Item[]
        {
            new Item{ Text = "Something" },
            new Item{ Text = "Something" },
            new Item{ Text = "Something" },
            new Item{ Text = "Something" },
            new Item{ Text = "Something" },
            new Item{ Text = "Something" },
            new Item{ Text = "Something" },
            new Item{ Text = "Something" },
            new Item{ Text = "Something" },
            new Item{ Text = "Something" },
            new Item{ Text = "Something" },
            new Item{ Text = "Something" },
            new Item{ Text = "Something" },
            new Item{ Text = "Something" },
            new Item{ Text = "Something" },
            new Item{ Text = "Something" }
        };

        public MainWindow()
        {
            InitializeComponent();

            DataContext = this;
        }
    }  

    public class Item
    {
        public string Text { get; set; }
    }
}

如果您调整窗口的大小,则当宿主控件无法再显示所有控件时,滚动条就会出现。几乎是标准的东西。

答案 1 :(得分:0)

ListView / Listbox / Stackpanel:可以根据其内容的大小进行扩展。

将列表视图/列表框包装在高度为“ *”的网格中(高度属性不要使用“自动”,它会根据其内容使其像堆栈面板一样展开)