c# - C# WPF DataGrid RowDetails 不使用 MVVM Caliburn.Micro 更新

Question

试图更新DataGrid RowDetailsTemplate“人物”中的“细节” DataGrid（做一些疯狂的盗梦空间！）。

集合正在正确更新NotifyOfPropertyChange()，但似乎没有更新DataGrid.

“Header地址信息”在 中RowDetailsTemplate，但其中没有显示任何行DataGrid。

楷模：

public class PersonModel
{
  public string FirstName{ get; set; }
  public string LastName{ get; set; }
}

public class DetailsModel
{
  public string Address{ get; set; }
}

视图模型：

private ObservableCollection<PersonModel> _people;
private ObservableCollection<PersonModel> People
    {
        get { return _people; }
        set 
        {
            _people = value;
            NotifyOfPropertyChange(() => People);
        }
    }

private ObservableCollection<DetailsModel> _details;
private ObservableCollection<DetailsModel> Details
    {
        get { return _details; }
        set 
        {
            _details = value;
            NotifyOfPropertyChange(() => Details);
        }
    }

public void SetRowDetail(PeopleModel selectedPerson)
    {
        PeopleModel person = selectedPerson;

        DetailsModel detailInfo = new DetailsModel();
        detailInfo.address = GetAddr(person.AddressIndex);
            
        Details = new ObservableCollection<DetailsModel>() {detailInfo};
    }

看法：

<DataGrid x:Name="People"
          Grid.Row="1"
          cm:Message.Attach="[Event MouseUp]=[Action SetRowDetail($this)]">
          <DataGrid.RowDetailsTemplate>
            <DataTemplate>
                <StackPanel>
                    <TextBox Text="Person Details" />
                    <DataGrid x:Name="Details"
                              ItemsSource="{Binding TakeoutCoefficients}">
                        <DataGrid.Columns>
                            <DataGridTextColumn Header="Address Info"
                                                Binding="{Binding Address, UpdateSourceTrigger=PropertyChanged}" />
                        </DataGrid.Columns>
                    </DataGrid>
                </StackPanel>
            </DataTemplate>
          </DataGrid.RowDetailsTemplate>
</DataGrid>

我想实现这一点而不必取出RowDetailsTemplate.

试过 BindableCollection 和 ItemsSource 似乎也没有帮助。

任何帮助或建议将不胜感激。