C# 如何将标签的ItemsControl绑定到ObservableCollection

我有一个ItemsControl，它的ItemsSource是一个可观察的集合。DataTemplate包含标签控件。我的目标是将这些标签的内容属性设置为ObservableCollection中的元素，但是现在，每个标签的内容都是空白的

值得注意的是，此ItemsControl嵌套在另一个父ItemsControl中，但让我显示：

<ItemsControl ItemsSource={Binding StudentCollection}">
 <ItemsControl.ItemTemplate> 
  <DataTemplate>
   <Grid>
    <Grid.ColumnDefinitions>
     <ColumnDefinition Width="90"/>
     <ColumnDefinition Width="*"/>
    </Grid.ColumnDefinitions>

    // This is the ItemsControl that is not working properly with the Labels


   <ItemsControl ItemsSource="{Binding StudentActivitiesCollection}">
    <ItemsControl.ItemTemplate>
     <DataTemplate>
      <Label Content="{Binding Sport, UpdatedSourceTrigger=PropertyChanged}"/>
     </DataTemplate>
    </ItemsControl.ItemTemplate>
   </ItemsControl>
  </Grid>
 </DataTemplate>
 </ItemsControl.Template>
</ItemsControl>

和我的工作视图模型：

 private ObservableCollection<StudentActivities> studentActivitiesCollection;
 public ObservableCollection<StudentActivities> StudentActivitiesCollection
 {
  get
  {
   if (studentActivitiesCollection == null)
      studentActivitiesCollection = new ObservableCollection<StudentActivities>();
    return studentActivitiesCollection;
   }
  }

这是我用来在ViewModel中填充ObservableCollection的方法：

private void PopulateStudentActivitiesCollection(ObservableCollection<Student> Students)
{
 foreach (Student s in Students)
 {
   StudentActivitiesCollection.Add(new StudentActivities () { Sport = StudentSport });
  }
 }
}

改变

到

及

到

---

最后的更改不是必需的，但也不是必需的。

我添加了一些代码供参考，我有StudentCollection的绑定，只是忘了复制它。我更新了我的帖子。对不起，我更新了我的帖子。请发布您的课程。什么是学生收藏？

private void PopulateStudentActivitiesCollection(ObservableCollection<Student> Students)
{
 foreach (Student s in Students)
 {
   StudentActivitiesCollection.Add(new StudentActivities () { Sport = StudentSport });
  }
 }
}

<ItemsControl ItemsSource={StudentCollection}">

<ItemsControl ItemsSource={Binding StudentCollection}">

<Label Content="{Binding Sport, UpdatedSourceTrigger=PropertyChanged}"/>

<Label Content="{Binding Sport}"/>