#region Custom Field Properties

        [Description("mykey"), Browsable(false), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
        public string mykey
            {
            get
                {
                string _mykey = this.Symbol + this.Cntry_code + this.from_date.ToString() + this.thru_date.ToString();
                return _mykey;
                }       
            }

        /// <summary>
        /// Provider property descriptors for the custom bindable fields
        /// </summary>
        protected override FieldPropertyDescriptor[] GetCustomBindablePropertyDescriptors()
            {
            //-- Return the array of property descriptors
            return new MicroFour.StrataFrame.Business.FieldPropertyDescriptor[] 
            { new ReflectionPropertyDescriptor("mykey", typeof(boiSource100Symbology))};
            }
        #endregion
        }