Accordion,难道不能和PRISM配合使用

Question

大家好：

 这次我用Accordion作为了菜单栏的容器，并配置了一个适配器，但是我调试的时候，并没法有发现有进入适配器。代码如下：

 <Grid x:Name="LayoutRoot" Background="White">
    <Grid.ColumnDefinitions>
      <ColumnDefinition Width="0.3*" />
      <ColumnDefinition Width="0.7*" />
    </Grid.ColumnDefinitions>
    <tk:Accordion Grid.Column="0"
               prism:RegionManager.RegionName="MenuRegion" />
    <sdk:TabControl Grid.Column="1"
                prism:RegionManager.RegionName="ContentRegion"
                DisplayMemberPath="Title"/>
  </Grid>

适配器代码如下：<pre lang="x-c#">namespace SilverlightTEST
{
  public class AccordionAdapter : RegionAdapterBase<Accordion>
  {
    public AccordionAdapter(IRegionBehaviorFactory regionBehaviorFactory)
      : base(regionBehaviorFactory)
    { }

    protected override void Adapt(IRegion region, Accordion regionTarget)
    {
      region.ActiveViews.CollectionChanged += (sender, args) =>
      {
        switch (args.Action)
        {
          case NotifyCollectionChangedAction.Add:
            foreach (AccordionItems view in args.NewItems)
            {
              AccordionItem itemn = new AccordionItem();
              itemn.Header = view.TX;
              itemn.Content = view.TX;
              regionTarget.Items.Add(itemn);
            }
            break;
          
        }
      };
    }

    protected override IRegion CreateRegion()
    {
      return new AllActiveRegion();
    }
  }
}

调用代码如下：<pre lang="x-c#"> public class SliverlightModule : IModule
  {
    public SliverlightModule(IRegionManager regionManager)
    {
      if(regionManager == null)
      {
        throw new ArgumentNullException("regionManager");
      }

      RegionManager = regionManager;
    }

    private IRegionManager RegionManager { get; set; }

    public void Initialize()
    {
      //CrmCommands.OpenCustomerViewCommand.RegisterCommand(new DelegateCommand<object>(ExecuteOpenCustomerView));
      RegionManager.AddToRegion("MenuRegion", CreateModuleDefinition());
      //RegionManager.AddToRegion("MenuRegion", new SilverlightControl1());
      
    }


    public AccordionItems CreateModuleDefinition()
    {
      AccordionItems item = new AccordionItems();
      // return "<tk:AccordionItem Header='DEMO1'><ListBox><ListBoxItem >2222222222</ListBoxItem></ListBox></tk:AccordionItem>";
      item.TX = "managerment";
      return item;
    }
  }

  RegionManager.AddToRegion("MenuRegion", CreateModuleDefinition());
此处代码报错，未将对象引用到实例。