콤보박스(combobox) value, text 다르게 하는 방법

    List<dictionary<string, string>>; list = ~~~~~;
    foreach (Dictionary<string, string=""> record in list)
    {
        this.combo.Add(record["text"], record["val"]);
    };
    this.combo.DataSource = new BindingSource(list, null);
    this.combo.DisplayMember = "Key";
    this.combo.ValueMember = "Value";