请你根据刚才的需求修改我的xaml代码：<?xml version="1.0" encoding="utf-8"?> <Window x:Class="UI.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:local="using:UI" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" mc:Ignorable="d" Title="UI"> <StackPanel> <!-- 第一行：标签行 --> <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" VerticalAlignment="Center"> <TextBlock Text="姓名" Width="80" TextAlignment="Center"/> <TextBlock Text="班级" Width="80" TextAlignment="Center"/> <TextBlock Text="年龄" Width="80" TextAlignment="Center"/> </StackPanel> <!-- 第二行：输入框行 --> <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" VerticalAlignment="Center"> <TextBox x:Name="txtName" Width="200" /> <TextBox x:Name="txtClass" Width="200" /> <TextBox x:Name="txtAge" Width="200"/> </StackPanel> <!--第三行：按钮们--> <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" VerticalAlignment="Center"> <Button x:Name="myButton" Click="myButton_Click">添加</Button> <Button x:Name="change" Click="ChangeClick">修改</Button> <Button x:Name="delete" Click="DeleteClick">删除</Button> </StackPanel> </StackPanel> </Window>

### 修改 XAML 代码以实现数据绑定并完善 UI 布局 为了实现动态显示包含姓名、班级和年龄的数据列表，并保持 UI 布局合理，需要对现有的 XAML 代码进行以下调整： #### 完善后的 XAML 代码 以下是经过修改的 XAML 代码，其中添加了数据绑定功能，并优化了布局结构以确保信息清晰且易于阅读： ```xml <Page x:Class="DataBindingExample.MainPage" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:local="using:DataBindingExample" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" mc:Ignorable="d" Background="{ThemeResource ApplicationPageBackgroundThemeBrush}"> <Grid> <!-- 标签行 --> <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" VerticalAlignment="Top" Margin="10"> <TextBlock Text="姓名" Width="80" FontWeight="Bold" TextAlignment="Center"/> <TextBlock Text="班级" Width="80" FontWeight="Bold" TextAlignment="Center"/> <TextBlock Text="年龄" Width="80" FontWeight="Bold" TextAlignment="Center"/> </StackPanel> <!-- 数据列表 --> <ListBox x:Name="StudentList" ItemsSource="{Binding Students}" Margin="10" VerticalAlignment="Top" Height="200"> <ListBox.ItemTemplate> <DataTemplate> <StackPanel Orientation="Horizontal" HorizontalAlignment="Center"> <TextBlock Text="{Binding Name}" Width="80" TextAlignment="Center"/> <TextBlock Text="{Binding Class}" Width="80" TextAlignment="Center"/> <TextBlock Text="{Binding Age}" Width="80" TextAlignment="Center"/> </StackPanel> </DataTemplate> </ListBox.ItemTemplate> </ListBox> </Grid> </Page> ``` #### 后台代码实现数据绑定 在后台代码中，需要定义一个 `Students` 集合，并将其绑定到 `ListBox` 的 `ItemsSource` 属性。以下是完整的后台代码示例： ```csharp using System.Collections.ObjectModel; using Windows.UI.Xaml.Controls; namespace DataBindingExample { public sealed partial class MainPage : Page { public ObservableCollection<Student> Students { get; set; } = new ObservableCollection<Student>(); public MainPage() { this.InitializeComponent(); this.DataContext = this; // 初始化学生数据 Students.Add(new Student { Name = "张三", Class = "一年级", Age = 7 }); Students.Add(new Student { Name = "李四", Class = "二年级", Age = 8 }); Students.Add(new Student { Name = "王五", Class = "三年级", Age = 9 }); } } public class Student { public string Name { get; set; } public string Class { get; set; } public int Age { get; set; } } } ``` #### 关键点解析 1. **数据模型定义**：通过定义 `Student` 类，明确了每个学生对象包含的属性（如姓名、班级和年龄）[^1]。 2. **数据集合绑定**：使用 `ObservableCollection<Student>` 来存储学生数据，并将其绑定到 `ListBox` 控件的 `ItemsSource` 属性，确保数据变化时 UI 自动更新[^2]。 3. **UI 布局优化**：通过 `StackPanel` 和 `TextBlock` 的组合，实现了每行显示姓名、班级和年龄的信息，并通过 `ItemTemplate` 定制了 `ListBox` 中每一项的显示样式[^3]。 --- ###