protected override void GetProperties(System.Collections.Hashtable propertyDescriptors)
        {
            base.GetProperties(propertyDescriptors);

            // use a custom type descriptor for connection protocol
            PropertyDescriptor pd = (PropertyDescriptor)propertyDescriptors["Connection Protocol"];

            Attribute[] myAttr = new Attribute[pd.Attributes.Count];
            pd.Attributes.CopyTo(myAttr, 0);
            ConnectionProtocolDescriptor mypd;

            mypd = new ConnectionProtocolDescriptor(pd.Name, myAttr);
            propertyDescriptors["Connection Protocol"] = mypd;
        }
        protected override void GetProperties(System.Collections.Hashtable propertyDescriptors)
        {
            base.GetProperties(propertyDescriptors);

            // use a custom type descriptor for connection protocol
            PropertyDescriptor pd = (PropertyDescriptor)propertyDescriptors["Connection Protocol"];
            Attribute[] myAttr = new Attribute[pd.Attributes.Count];
            pd.Attributes.CopyTo(myAttr, 0);
            ConnectionProtocolDescriptor mypd;
            mypd = new ConnectionProtocolDescriptor(pd.Name, myAttr);
            propertyDescriptors["Connection Protocol"] = mypd;
        }