拉伸stackpanel

Question

我想使用列表框创建一个歌曲列表,但我遇到了布局问题.

目前我使用以下xaml:

<ListBox x:Name="lstHistory" HorizontalAlignment="Stretch" Margin="12,284,0,90" Width="460">
            <ListBox.ItemTemplate>
                <DataTemplate>
                    <StackPanel Orientation="Horizontal" HorizontalAlignment="Stretch">
                        <StackPanel Orientation="Horizontal">
                            <Image Margin="5" VerticalAlignment="top" Source="{Binding Image}" />
                        </StackPanel>
                        <StackPanel Orientation="Vertical" VerticalAlignment="Stretch" HorizontalAlignment="Stretch">
                            <TextBlock Margin="8"
                                  TextWrapping="Wrap"
                                  VerticalAlignment="Top"
                                  HorizontalAlignment="Left"
                                  Text="{Binding Name}" />
                            <TextBlock Margin="8"
                                  VerticalAlignment="Top"
                                  HorizontalAlignment="Left"
                                  Text="{Binding Artist}" />
                            <TextBlock Margin="8,0,8,8"
                                  VerticalAlignment="Bottom"
                                  HorizontalAlignment="Right" Text="{Binding Time}" Opacity="0.25" />
                        </StackPanel>
                    </StackPanel>
                </DataTemplate>
            </ListBox.ItemTemplate>
        </ListBox>

我希望有时间在列表项的最右下角,但每次它最终都在屏幕中间.

这是我得到的一个例子:

谁能告诉我如何在那里度过时间？

Answer 1

默认情况下,ListBoxItem占用尽可能少的空间.StackPanel也是如此.为了使它具有跨度,您必须将ListBox的Horizo​​ntalContentAlignment设置为Stretch,并将StackPanel的Horizo​​ntalAlignment设置为Stretch(您已经在进行).您还需要为ListBox设置ItemContainerStyle

<ListBox x:Name="lstHistory" HorizontalContentAlignment="Stretch" Margin="12,284,0,90">
        <ListBox.ItemTemplate>
            <DataTemplate>
                <StackPanel Orientation="Horizontal" HorizontalAlignment="Stretch">
                    <Image Margin="5" VerticalAlignment="top" Source="{Binding Image}" />
                    <StackPanel Orientation="Vertical" VerticalAlignment="Stretch" HorizontalAlignment="Stretch">
                        <TextBlock Margin="8"
                              TextWrapping="Wrap"
                              VerticalAlignment="Top"
                              HorizontalAlignment="Left"
                              Text="{Binding Name}" />
                        <TextBlock Margin="8"
                              VerticalAlignment="Top"
                              HorizontalAlignment="Left"
                              Text="{Binding Artist}" />
                        <TextBlock Margin="8,0,8,8"
                              VerticalAlignment="Bottom"
                              HorizontalAlignment="Right" Text="{Binding Time}" Opacity="0.25" />
                    </StackPanel>
                </StackPanel>
            </DataTemplate>
        </ListBox.ItemTemplate>
        <ListBox.ItemContainerStyle>
            <Style TargetType="ListBoxItem">
                <Setter Property="HorizontalContentAlignment" Value="Stretch"/>
            </Style>
        </ListBox.ItemContainerStyle>
    </ListBox>