从 List<customClass> WPF 创建树视图

Question

我想TreeView从List<PhonesFromStudents>.我的自定义课程是 PhonesFromStudentspublic class PhonesFromStudents{     public string Name { get; set; }    public List<string> Phones { get; set; } }XAML 是： <TreeView  x:Name="tv_source" Grid.Row="2" Grid.Column="1" Margin="0,5" HorizontalAlignment="Stretch" ItemsSource="{Binding ListStudents}" Background="White" BorderBrush="{x:Null}">        <TreeView.ItemTemplate>            <DataTemplate>                <TextBlock Text="{Binding Name}"  />            </DataTemplate>        </TreeView.ItemTemplate>    </TreeView>主窗口.cs internal MainWindow(List<PhonesFromStudents> list)    {        InitializeComponent();        this.ListStudents = list;        this.DataContext = this;    }示例：2 名学生 Thomas - iPhone8,iPhone6 Lucas - iPhone4s, S8我想拥有Thomas|_____iPhone8|_____iPhone6Lucas|_____iPhone4s|_____S8但是我从 UI 得到一个空列表。有人能帮我吗？谢谢

Answer 1

使用HierarchicalDataTemplate：

<TreeView x:Name="tv_source" Grid.Row="2" Grid.Column="1" Margin="0,5" 

          HorizontalAlignment="Stretch" ItemsSource="{Binding ListStudents}" Background="White" BorderBrush="{x:Null}">

    <TreeView.Resources>

        <HierarchicalDataTemplate DataType="{x:Type local:PhonesFromStudents}" ItemsSource="{Binding Phones}">

            <TextBlock Text="{Binding Name}"  />

        </HierarchicalDataTemplate>

    </TreeView.Resources>

</TreeView>

...并确保这ListStudents是一个公共财产：

public List<PhonesFromStudents> ListStudents { get; set; }