我有一个 WPF 列表框，并已将列表项数据模板更新为基本上具有 3 列布局。
我想：
|状态颜色|名称| 按钮|
这些可能是 CSS 术语，但我想将状态颜色和名称浮动到左侧，我已经完成了，然后我希望按钮浮动到右侧，并且即使窗口变宽也始终保持在右侧.
我觉得我很接近，当窗口变宽时，列表项的宽度会增加，我觉得我所要做的就是告诉按钮向右浮动，但不知道如何。我试过堆栈面板，一个带有自动|*|自动列布局的网格（最后一列有一个拉伸），我试过一个停靠面板。
这是我的 XAML：
<Controls:MetroWindow x:Class="Appsecute.Views.MainView2"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:Controls="clr-namespace:MahApps.Metro.Controls;assembly=MahApps.Metro"
xmlns:AppsecuteControls="clr-namespace:Appsecute.Controls"
Title="APPSECUTE" Height="630" Width="480" Icon="/Appsecute;component/Images/icon.png" WindowStartupLocation="CenterScreen">
<Window.Resources>
<ResourceDictionary>
<ResourceDictionary.MergedDictionaries>
<ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Colours.xaml" />
<ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Fonts.xaml" />
<ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Controls.xaml" />
<ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Controls.AnimatedSingleRowTabControl.xaml" />
<ResourceDictionary Source="pack://application:,,,/MahApps.Metro.Resources;component/Icons.xaml" />
<ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Accents/Blue.xaml" />
<ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Accents/BaseLight.xaml" />
</ResourceDictionary.MergedDictionaries>
</ResourceDictionary>
</Window.Resources>
<Grid Margin="0,0,12,0">
<AppsecuteControls:NotifyIcon
x:Name="NotifyIcon"
Text="Appsecute"
Icon="/Images/icon.ico" MouseDoubleClick="NotifyIconMouseDoubleClick" Grid.ColumnSpan="2">
<AppsecuteControls:NotifyIcon.ContextMenu>
<ContextMenu StaysOpen="False">
</ContextMenu>
</AppsecuteControls:NotifyIcon.ContextMenu>
</AppsecuteControls:NotifyIcon>
<Grid Height="auto" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Width="auto" Margin="12,0,0,24">
<Grid.RowDefinitions>
<RowDefinition Height="auto" />
<RowDefinition Height="*" />
<RowDefinition Height="auto" />
<RowDefinition Height="*" />
</Grid.RowDefinitions>
<Label Content="APPLICATIONS" Height="auto" Name="LabelApplications" Grid.Row="0" Padding="2" Margin="0,8,0,0" VerticalAlignment="Top" />
<ListBox Height="auto" Name="ListBoxApplications" Width="auto" Grid.Row="1" Grid.ColumnSpan="3" Focusable="False" Background="White" BorderBrush="{x:Null}" SelectionChanged="ListBoxApplicationsSelectionChanged">
<ListBox.ItemContainerStyle>
<Style TargetType="{x:Type ListBoxItem}">
<Setter Property="HorizontalAlignment" Value="Stretch"></Setter>
<Setter Property="Padding" Value="0"></Setter>
<Setter Property="Background" Value="#EEEEEE"></Setter>
<Setter Property="BorderBrush" Value="White"></Setter>
<Setter Property="BorderThickness" Value="0,0,0,2"></Setter>
<Style.Triggers>
<Trigger Property="IsMouseOver" Value="True">
<Setter Property="BorderBrush" Value="#FF4EA6EA"></Setter>
</Trigger>
</Style.Triggers>
</Style>
</ListBox.ItemContainerStyle>
<ListBox.ItemTemplate>
<DataTemplate>
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*" />
<ColumnDefinition Width="Auto" />
</Grid.ColumnDefinitions>
<StackPanel Grid.Column="0" Orientation="Horizontal">
<Rectangle Fill="{Binding StateColor}" Width="5" Height="auto" Margin="0,0,5,0"></Rectangle>
<StackPanel Orientation="Vertical">
<StackPanel Orientation="Horizontal" Margin="0,4,0,0">
<TextBlock Text="{Binding DisplayName}" FontSize="20" Padding="2" />
</StackPanel>
<StackPanel Orientation="Horizontal" Margin="0,4">
<TextBlock Text="{Binding CloudName}" FontSize="12" Foreground="#FF666666" />
<TextBlock Text=" - " FontSize="12" Foreground="#FF666666" />
<TextBlock Text="{Binding Username}" FontSize="12" Foreground="#FF666666" />
</StackPanel>
</StackPanel>
</StackPanel>
<DockPanel Grid.Column="1" VerticalAlignment="Center" HorizontalAlignment="Right">
<Button Background="{x:Null}" BorderBrush="{x:Null}" Focusable="False" Tag="{Binding}" Name="ButtonUpload" ToolTip="Upload Application" Click="ButtonUploadClick">
<StackPanel>
<Image Width="24" Height="24" Source="/Appsecute;component/Images/upload.png"/>
</StackPanel>
</Button>
<Button Background="{x:Null}" BorderBrush="{x:Null}" Focusable="False" Tag="{Binding}" Name="ButtonStart" Click="ButtonStartClick" ToolTip="Start Application" IsEnabled="{Binding IsStopped}">
<StackPanel>
<Image Width="24" Height="24" Source="/Appsecute;component/Images/play.png" />
</StackPanel>
</Button>
<Button Background="{x:Null}" BorderBrush="{x:Null}" Focusable="False" Tag="{Binding}" Name="ButtonStop" ToolTip="Stop Application" Click="ButtonStopClick" IsEnabled="{Binding IsStarted}">
<StackPanel>
<Image Width="24" Height="24" Source="/Appsecute;component/Images/stop.png"/>
</StackPanel>
</Button>
<Button Background="{x:Null}" BorderBrush="{x:Null}" Focusable="False" Click="ButtonRestartClick" Tag="{Binding}" Name="ButtonRestart" ToolTip="Restart Application">
<StackPanel>
<Image Width="24" Height="24" Source="/Appsecute;component/Images/restart.png"/>
</StackPanel>
</Button>
</DockPanel>
</Grid>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
<Label Content="SERVICE INSTANCES" Height="auto" Name="LabelServiceInstances" Grid.Row="2" Grid.ColumnSpan="3" Padding="2" Margin="0,8,0,0" VerticalAlignment="Top" />
<ListBox Height="auto" Name="ListBoxServiceInstances" Width="auto" Grid.Row="3" Grid.RowSpan="2" Grid.ColumnSpan="3" />
</Grid>
<Label Height="28" HorizontalAlignment="Left" Margin="0,0,0,0" Name="LabelStatus" VerticalAlignment="Bottom" Width="auto" VerticalContentAlignment="Bottom" HorizontalContentAlignment="Stretch" FontSize="10" />
</Grid>
</Controls:MetroWindow>
还有我想要实现的图像：
