使用不同的成员类型将TreeView绑定到Observablecollection

Question

我的课程结构如下：

public class WTRun : INotifyPropertyChanged
{
    public WTRun()
    {

    }

    # Local variable definitions removed
    # Property gets & sets removed
    # NotifyPropertyChanged code removed

    public Guid RunId
    public int RunNumber
    public DateTime? RunStartTime
    public DateTime? RunEndTime
    public string RunComment
    public int MapId
    public RunConfiguration Configuration
    public ObservableCollection<StepMetric> StepMetrics
    public ObservableCollection<BlockMetric> BlockMetrics
    public ObservableCollection<Medusa> Medusas
    public ObservableCollection<PIV> PIVs
    public ObservableCollection<CMotion> CMotions
}

该类包装在ObservableCollection中，然后绑定到TreeView。 我对如何设置TreeView以使其正确显示项目感到困惑。

我希望TreeView看起来像这样：

Root
  +--(RunNumber)
  |  +--"StepMetrics"
  |  |  +--(StepMetric IDs)
  |  +--"BlockMetrics"
  |  |  +--(BlockMetric IDs)
  |  +--"Medusas"
  |  |  +--(Medusa IDs)
  |  +--"PIVs"
  |  |  +--(PIV IDs)
  |  +--"CMotions"
  |     +--(CMotion IDs)
  |--(RunNumber)
     ...etc  

我一直在努力尝试使用模板，但是到目前为止只能显示RunNumbers：

<TreeView.Resources>
    <HierarchicalDataTemplate DataType="{x:Type VMEntities:WTRun}" >
        <TextBlock Text="{Binding RunNumber }" Margin="1" />                                
    </HierarchicalDataTemplate>
    <HierarchicalDataTemplate DataType="{x:Type VMEntities:BlockMetric}">
        <TextBlock Text="{Binding BlockIndex}"/>
    </HierarchicalDataTemplate>
</TreeView.Resources>

这显然不是一次彻底的尝试......

这是正确的方法吗？