I display certain noden in a repeater in a Usercontrol - it all works as intenteed, execpt fot the delete button (deleteCommand) - the repeater simply will not refresh! - what am I doing wrong...? (The item is deleted from the repeater when I refresh the browser (f5) though)

I use Umbraco v 4.11.10, asp.net 4.0, MySQl Db

My codebehind looks af folloes:

    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            LoadDishes();
        }
    }

    protected void LoadDishes() 
    {
        string memberID = Convert.ToString(Member.CurrentMemberId());
        IEnumerable<Node> nodes = uQuery.GetNodesByType("Dish").Where(x => x.GetProperty("dishCreator").ToString().Equals(Convert.ToString(memberID))).OrderByDescending(r => r.CreateDate);

        Repeater1.DataSource = nodes;
        Repeater1.DataBind();
    }

    protected void Repeater1_ItemCommand(object source, RepeaterCommandEventArgs e)
    {
        HiddenField HFValue = (HiddenField)e.Item.FindControl("HiddenFieldId");
        int dishId = Convert.ToInt32(HFValue.Value);
        Document d = new Document(dishId);
        User user = User.GetUser(1);
        if (Convert.ToString(e.CommandArgument) == "visibleCommand")
        {
            d.getProperty("umbracoNaviHide").Value = 1;
            d.Publish(user);
        }
        else if (Convert.ToString(e.CommandArgument) == "invisibleCommand")
        {
            d.getProperty("umbracoNaviHide").Value = 0;
            d.Publish(user);
        }
        else if (Convert.ToString(e.CommandArgument) == "deleteCommand")
        {
            d.delete();
        }
        umbraco.library.UpdateDocumentCache(d.Id);
        umbraco.library.RefreshContent();
        LoadDishes();
    }