ListItemCollection problem in custom ControlDesigner

[Fayu]

I have created a custom ControlDesigner where I have a Smart Tag with a few DesignerActionPropertyItems. One of these DesignerActionPropertyItems contains a ListItemCollection. My problem is when I use the Smart Tag to add items to the collection, nothing is added to the collection. On the other hand, when I use the property editor to modify the collection, all is well! Below is the code. Thanks in advance. MyControl.cs

\[DefaultProperty("Text")\]
\[ToolboxData("<{0}:MyControlrunat=server></{0}:MyControl>")\]
\[Designer(typeof(MyControlDesigner),typeof(IDesigner))\]
\[ParseChildren(ChildrenAsProperties =true)\]
public class MyControl: CompositeControl
{
    \[Bindable(true)\]
    \[Category("Settings: Value")\]
    \[PersistenceMode(PersistenceMode.InnerProperty)\]
    \[EditorAttribute(typeof(ListItemsCollectionEditor), typeof(UITypeEditor))\]
    \[MergableProperty(false)\]
    public ListItemCollection Items
    {
        get
        {
            if (ViewState\["Items"\] == null)
                ViewState\["Items"\] = new ListItemCollection();
            return (ListItemCollection)ViewState\["Items"\];
        }
    }
}

MyControlDesigner.cs

public class MyControlDesigner : ControlDesigner
{
    //Properties
    public override System.ComponentModel.Design.DesignerActionListCollection ActionLists
    {
        get
        {
            DesignerActionListCollection actions = new DesignerActionListCollection();
            actions.AddRange(base.ActionLists);
            actions.Add(new LabeledControlDesignerActionLists(this));
            return actions;
        }
    }
}

MyControlDesignerActionLists.cs

class MyControlDesignerActionLists: DesignerActionList
{
    private MyControlDesigner  \_designer;
    private MyControl \_control;

    public MyControlDesignerActionLists(MyControlDesigner designer)
        : base(designer.Component)
    {
        this.\_designer = designer;
        this.\_control = (Mycontrol)this.\_designer.Component;
    }

    public override DesignerActionItemCollection GetSortedActionItems()
    {
        DesignerActionItemCollection actions = new DesignerActionItemCollection();
                actions.Add(
                    new DesignerActionPropertyItem(
                        "Items",