Is it possible in the 'RadCheckedDropDownList' control to disable the suggestion dropdown that appears when AutoCompleteMode is set as SuggestAppend,

        public RadForm1()
        {
            InitializeComponent();
            DataTable dt = new DataTable();
            dt.Columns.Add("Id", typeof(int));
            dt.Columns.Add("Name", typeof(string));
            for (int i = 0; i < 10; i++)
            {
                dt.Rows.Add(i, "Item" + i);
            }
            this.radCheckedDropDownList1.PopupOpening += radCheckedDropDownList1_PopupOpening;
            this.radCheckedDropDownList1.AutoCompleteMode = AutoCompleteMode.SuggestAppend;
            this.radCheckedDropDownList1.DataSource = dt;
            this.radCheckedDropDownList1.DisplayMember = "Name";
            this.radCheckedDropDownList1.ValueMember = "Id";
        }

        private void radCheckedDropDownList1_PopupOpening(object sender, CancelEventArgs e)
        {
            e.Cancel = true;
        }