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public class Character : INotifyPropertyChanged
    {
[...]
        public event PropertyChangedEventHandler PropertyChanged;
[...]
        public string Surename
        {
            get { return mySurename; }
            set
            {
                mySurename = value;
                if (PropertyChanged != null)
                {
                    PropertyChanged(this, new PropertyChangedEventArgs("Surename"));
                }
            }
        }
[...]
    }

    public class CharacterList : BindingList<Character>
    {[...]}                    

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        private CharacterList data = new CharacterList();
[...]
        private void Form1_Load(object sender, EventArgs e)
        {
            listBoxData.DataSource = data;
            listBoxData.DisplayMember = "ShortName";
[...]
        }