class Properties
    {
        private string _id;
        private string _einText;
 
        /// <summary>
        /// Gets or sets the id.
        /// </summary>
        /// <value>The id (must be unique).</value>
        public string id
        {
            get { return _id; }
            set { _id = value; }
        }
 
        /// <summary>
        /// Gets or sets the einText.
        /// </summary>
        /// <value>The einText.</value>
        public string einText
        {
            get { return _einText; }
            set { _einText= value; }
        }
    }
 
    class SuperButton: Properties : Button
    {
 
    }

fg viperbone