C#

class Program
    {
        static void Main(string[] args)
        {
            StudentInfo stud = new StudentInfo();
            stud.Name.FirstName = "zai";                //fails assigns firstname as null
            stud.name.FirstName = "zai";                //works succesfully
        }
    }
    class NameInfo :ICloneable
    {
        private string firstname;

        public string FirstName
        {
            get { return firstname; }
            set { firstname = value; }
        }
        public object Clone()
        {
            NameInfo n = new NameInfo();
            n.LastName = this.lastname;
            return n;
        }
    }
    class StudentInfo:ICloneable
    {
        public NameInfo name = new NameInfo();
        public NameInfo Name
        {
            get
            {
                if (name != null)
                    return (NameInfo)name.Clone();
                else
                    return null;
            }
            set
            {
                if (value != null)
                    name = (NameInfo)value.Clone();
                else
                    name = null;
            }
        }
        public object Clone()
        {
            StudentInfo s = new StudentInfo();
            s.Name = this.Name;
            return s;
        }
    }

iTunesConvertOperationStatus itcoStatus = null;<br />
...<br />
<br />
itcoStatus = iTunesApp.ConvertFile2(strPath);<br />
...<br />
<br />
itcoStatus.OnConvertOperationCompleteEvent +=new (shortened)_OnConvertOperationCompleteEventEventHandler(itcoStatus_OnConvertOperationCompleteEvent);