protected override void CreateHandle ()
{
m_helper = new ComboBoxHelper ();
m_view = m_helper;
m_helper.Host = this;
m_helper.Activated += delegate(object sender, EventArgs e) {
//TODO: implement ListControl
if (SelectedValueChanged != null)
SelectedValueChanged (sender, e);
//OnSelectedIndexChanged(e);
//OnSelectedValueChanged(e);
};
_dataSource = new ComboBoxDataSource (this);
}