public partial class GroupPanel : System.Web.UI.UserControl,
        umbraco.editorControls.userControlGrapper.IUsercontrolDataEditor

    {
        protected void Page_Load(object sender, EventArgs e)
        {
            MemberGroup[] groups = MemberGroup.GetAll;
            foreach(MemberGroup item in groups)
            {
                chkGroup.Items.Add(item.Text);
            }
        }

        public object value
        {
            get
            {
                return chkGroup.SelectedValue;
            }
            set
            {
                if(value != null)
                {
                    // will read from database
                   
                   
                }
            }
        }
    }