C#

public partial class Form1 : Form
{
  public Form1()
  {
    InitializeComponent();
  }

  private void Form1_Load(object sender, EventArgs e)
  {
    Data data = new Data();

    string name = "Persons";
    Type type = data.GetType();
    PropertyInfo listProperty = type.GetProperty(name);

    //BindData<object>((List<object>)listProperty.GetValue(data, null));

    List<object> listObject = (List<object>)listProperty.GetValue(data, null);
  }

  private void BindData<T>(List<T> data)
  {
    comboBox1.DataSource = null;
    comboBox1.DataSource = data;
  }
}

public class Person
{
  public string Name { get; set; }
  public int Age { get; set; }

  public Person(string name, int age)
  {
    Name = name;
    Age = age;
  }

  public override string ToString()
  {
    return Name;
  }
}

public class Data
{
  public Data()
  {
    Persons = new List<Person>();
    Persons.Add(new Person("One", 1));
    Persons.Add(new Person("Two", 2));
  }

  public List<Person> Persons { get; set; }
}

using System;
using System.Collections;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using Emailhandler;<-- the problem