将Winforms控件数据绑定到可空类型的最佳方法？

public class Employee
{
    public int Id { get; set; }
    public string Name { get; set; }
    public int? Age { get; set; }
}

public partial class Form1 : Form
{
    private BindingSource bindingSource1 = new BindingSource();
    private DataTable employeeTable;

    public Form1()
    {
        InitializeComponent();
        InitializeData();
    }

    private void InitializeData()
    {
        // 创建一个DataTable
        employeeTable = new DataTable("Employees");
        employeeTable.Columns.Add("Id", typeof(int));
        employeeTable.Columns.Add("Name", typeof(string));
        employeeTable.Columns.Add("Age", typeof(int));

        // 添加数据
        employeeTable.Rows.Add(1, "John Doe", 30);
        employeeTable.Rows.Add(2, "Jane Smith", DBNull.Value);

        // 将DataTable绑定到BindingSource
        bindingSource1.DataSource = employeeTable;

        // 将控件绑定到BindingSource
        textBoxId.DataBindings.Add("Text", bindingSource1, "Id", true, DataSourceUpdateMode.OnValidation, null, "0");
        textBoxName.DataBindings.Add("Text", bindingSource1, "Name", true, DataSourceUpdateMode.OnValidation, null, "");
        textBoxAge.DataBindings.Add("Text", bindingSource1, "Age", true, DataSourceUpdateMode.OnValidation, null, "0");

        // 处理可空类型的转换
        Binding ageBinding = textBoxAge.DataBindings["Text"];
        ageBinding.Format += AgeBinding_Format;
        ageBinding.Parse += AgeBinding_Parse;
    }

    private void AgeBinding_Format(object sender, ConvertEventArgs e)
    {
        if (e.Value == DBNull.Value)
        {
            e.Value = "";
        }
    }

    private void AgeBinding_Parse(object sender, ConvertEventArgs e)
    {
        if (string.IsNullOrEmpty(e.Value.ToString()))
        {
            e.Value = DBNull.Value;
        }
    }
}