C# WPF ItemsSource绑定仅显示列表的最后一项

如何在itemssource绑定中仅显示列表的最后一项

下面是我当前的代码

xaml

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如果要绑定到列表中的特定项，可以创建一个要绑定的公共变量。使用您提供的内容，我创建了一个适用于列表中最后一项的示例，我所做的只是创建一个名为LastItem的新变量，并更改了绑定在项目中的方式。这只是众多方法中的一种

xaml

<StackPanel Orientation="Vertical" HorizontalAlignment="Center" Width="800">
  <TextBlock  Text="{Binding LastItem.TicketTitle}" TextAlignment="Left" />
  <TextBlock  Text="{Binding LastItem.TicketDescription}"  TextWrapping="Wrap" FontSize="19" TextAlignment="Left"/>
</StackPanel>

这将提供以下输出：

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如果只想显示最后一个，为什么要使用items控件。如果确实需要UpgradeTicketStorage列表，为什么不绑定到

UpgradeTicketStorage.Last（）的表达式属性
public class UpgradeTicketDescription : ViewModelBase
    {

        public string TicketTitle { get; set; }
        public string TicketDescription { get; set; }
    }

List<UpgradeTicketDescription> _UpgradeTicketStorage;
public List<UpgradeTicketDescription> UpgradeTicketStorage
    {
        get { return _UpgradeTicketStorage; }
        set { _UpgradeTicketStorage = value; OnPropertyChanged("UpgradeTicketStorage"); }
    }
 UpgradeTicketStorage.Add(new UpgradeTicketDescription { TicketTitle = "TicketA", TicketDescription = "Observation DeckA (Single Ticket)"});
 UpgradeTicketStorage.Add(new UpgradeTicketDescription { TicketTitle = "TicketB", TicketDescription = "Observation DeckB (Single Ticket)"});

<StackPanel Orientation="Vertical" HorizontalAlignment="Center" Width="800">
  <TextBlock  Text="{Binding LastItem.TicketTitle}" TextAlignment="Left" />
  <TextBlock  Text="{Binding LastItem.TicketDescription}"  TextWrapping="Wrap" FontSize="19" TextAlignment="Left"/>
</StackPanel>

public UpgradeTicketDescription LastItem
  {
  get { return UpgradeTicketStorage.Last(); }
  }