Editorpart selected list item is not persisted

Question

I have a small issue with editor part, i cannot persist the selected item, here is the code:

EditorPart:

    protected override void CreateChildControls()
    {
        base.CreateChildControls();
        ddl= new DropDownList();
        webPartsList.Items.Add(new ListItem("default", "0"));
        //FILLS UP THE DDL
        this.controlPanel.Controls.Add(ddl);
    }

    public override void SyncChanges()
    {
        EnsureChildControls();

        WebPartListing hostingWebPart = this.WebPartToEdit as WebPartListing;

        if (hostingWebPart.SelectedItem == null)
        {
            return;
        }

        string selectedValue = hostingWebPart.SelectedItem.Value;
        ListItem listItem = webPartsList.Items.FindByValue(selectedValue);
        if (listItem != null)
        {
            listItem.Selected = true;
        }
    }

    public override bool ApplyChanges()
    {
        EnsureChildControls();

        WebPartListing hostingWebPart = this.WebPartToEdit as WebPartListing;

        if (webPartsList.SelectedItem != null)
        {
            hostingWebPart.SelectedItem = webPartsList.SelectedItem;
        }

        return true;
    }

So when reading some logs i know that in Apply changes the values are being set so it is ok (in ApplyChanges), But still in webpart class ListItem selectedItem is null

Here the code from webpart:

    public ListItem SelectedItem { get; set; }

    protected override void CreateChildControls()
    {
        if (SelectedItem == null)
        {               
            return;
        }

        Panel div = new Panel();
        div.ID = "SancoDefaultWebPartContext";
        div.Controls.Add(new LiteralControl("Text: "+SelectedItem.Text));
        this.Controls.Add(div);
    }

So basically the issue is that i didnt see anything printed on the page, as it says the SelectedItem is null and it exits. Second issue is that I dont get the correct item selected when i'm back to editors part, alwyas default is selected, althought i say that listitem.selected=true.

I hope anyone can help me, thanks

A small update, but if i set some public string selectedText and try to print it on the page, it does work. Can it be that i cannot persist ListItems objects?