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public class Daten : List<string>
{
  string vorname;
  string nachnahme;
  

 public override string ToString()
        {
            StringBuilder anhang = new StringBuilder();

            foreach (var item in this)
            {
                if (anhang .Length > 0)
                {
                    anhang .Append(" " + item);
                }
                else
                {
                    anhang.Append(item);
                }
            }
            return anhang.ToString();
        } 

sowie die Properties zum auslesen der Strings					

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List<Daten> data = new List<Daten>();


            bindingSource1.DataSource = data;   
            bindingSource1.AllowNew = true;
            //Datgriedview 
            dataGridView1.DataSource = bindingSource1;
            dataGridView1.AllowUserToAddRows = true;
            dataGridView1.AllowUserToDeleteRows = true;
            dataGridView1.AllowUserToOrderColumns = true;
            dataGridView1.AllowUserToResizeColumns = true;					

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public string Content
{

  return toString();
}