how to add muliple value like Eid ,ename,Esalary in autocomplete textbox in c# window application

cmd = new SqlCommand("select Eid,Ename from temp order by Eid ";,con);
cmd.CommandType = CommandType.Text;
dr = cmd.ExecuteReader();
if (dr.HasRows == true)
{
    while (dr.Read())
        name.Add(dr["Eid"].ToString());
        name.Add(dr["Ename"].ToString());
 
    con.Close();
 
    textBox4.AutoCompleteMode = AutoCompleteMode.Suggest;
    textBox4.AutoCompleteSource = AutoCompleteSource.CustomSource;
    textBox4.AutoCompleteCustomSource = name;
}