C#应用程序将一个对象从一个窗体传递到另一个窗体

在我的应用程序Main加载表单1中，在表单1中创建了一个对象。表单1上有一个"下一步"按钮，单击"下一个"按钮时，将隐藏表单1并加载表单2。我试图将在表单1中创建的对象传递给表单2，但对象中的数据没有被拉到表单2，我做错了什么？

Class1具有

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace Lab15
{
public class Reservation
{
    //set private instance variables
    private int checkInDateDay;
    private int checkInDateMonth;
    private int checkInDateYear;
    private int numberOfNights;
    private int numberofGuests;
    private string name;
    private string addressStreet;
    private string addressCity;
    private string addressState;
    private int addressZipCode;
    private string creditCardNumber;
    private decimal dailyRate;
    private decimal subTotal;
    private decimal tax;
    private decimal total;
    private string phone;
    // CheckInDateDay property
    public int CheckInDateDay
    {
        get { return checkInDateDay; }
        set { checkInDateDay = value; }
    } // end CheckInDateDay property
    // CheckInDateMonth property
    public int CheckInDateMonth
    {
        get { return checkInDateMonth; }
        set { checkInDateMonth = value; }
    } // end CheckInDateMonth property
    // CheckInDateYear property
    public int CheckInDateYear
    {
        get { return checkInDateYear; }
        set { checkInDateYear = value; }
    } // end CheckInDateYear property
    // NumberOfNights property
    public int NumberOfNights
    {
        get { return numberOfNights; }
        set { numberOfNights = value; }
    } // end NumberOfNights property
    // NumberofGuests property
    public int NumberofGuests
    {
        get { return numberofGuests; }
        set { numberofGuests = value; }
    } // end NumberofGuests property
    // Name property
    public string Name
    {
        get { return name; }
        set { name = value; }
    } // end Name property
    // AddressStreet property
    public string AddressStreet
    {
        get { return addressStreet; }
        set { addressStreet = value; }
    } // end AddressStreet property
    // AddressCity property
    public string AddressCity
    {
        get { return addressCity; }
        set { addressCity = value; }
    } // end AddressCity property
    // AddressState property
    public string AddressState
    {
        get { return addressState; }
        set { addressState = value; }
    } // end AddressState property
    // AddressZipCode property
    public int AddressZipCode
    {
        get { return addressZipCode; }
        set { addressZipCode = value; }
    } // end AddressZipCode property
    // CreditCardNumber property
    public string CreditCardNumber
    {
        get { return creditCardNumber; }
        set { creditCardNumber = value; }
    } // end CreditCardNumber property
    // DailyRate property
    public decimal DailyRate
    {
        get { return dailyRate; }
        set { dailyRate = value; }
    } // end DailyRate property
    // SubTotal property
    public decimal SubTotal
    {
        get { return subTotal; }
        set { subTotal = value; }
    } // end SubTotal property
    // Tax property
    public decimal Tax
    {
        get { return tax; }
        set { tax = value; }
    } // end Tax property
    // Total property
    public decimal Total
    {
        get { return total; }
        set { total = value; }
    } // end Total property
    // Phone property
    public string Phone
    {
        get { return phone; }
        set { phone = value; }
    } // end Phone property
    // Reservation Constructor
    public Reservation(int checkInDateday, int checkInDateMonth, int checkInDateYear, 
                       int numberOfNights, int numberofGuests, string name, 
                       string addressStreet, string addressCity, string addressState, 
                       int addressZipCode, string creditCardNumber, decimal dailyRate, 
                       decimal subTotal, decimal tax, decimal total, string phone)
    {
        CheckInDateDay = checkInDateDay;
        CheckInDateMonth = checkInDateMonth;
        CheckInDateYear = checkInDateYear;
        NumberOfNights = numberOfNights;
        NumberofGuests = numberofGuests;
        Name = name;
        AddressStreet = addressStreet;
        AddressCity =addressCity;
        AddressState = addressState;
        AddressZipCode = addressZipCode;
        CreditCardNumber = creditCardNumber;
        DailyRate = dailyRate;
        SubTotal = subTotal;
        Tax = tax;
        Total = total;
        Phone = phone;
    } // end Reservation Constructor
}
}

Form1具有

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace Lab15
{
public partial class Form1 : Form
{
    public Form1()
    {
        InitializeComponent();
    }
    private void Form1_Load(object sender, EventArgs e)
    {
    }
    private void nextButton_Click(object sender, EventArgs e)
    {
        int checkInDateDay = checkInDateDateTimePicker.Value.Day;
        int checkInDateMonth = checkInDateDateTimePicker.Value.Month;
        int checkInDateYear = checkInDateDateTimePicker.Value.Year;
        int numberOfNights = Convert.ToInt32(numberOfNightsNumericUpDown.Value);
        int numberofGuests = Convert.ToInt32(numberOfGuestsNumericUpDown.Value);
        string name = "";
        string addressStreet = "";
        string addressCity = "";
        string addressState = "";
        int addressZipCode = 0;
        string creditCardNumber = "";
        decimal dailyRate = 0.00m;
        decimal subTotal = 0.00m;
        decimal tax = 0.00m;
        decimal total = 0.00m;
        string phone = "";
        Reservation newRes = new Reservation(checkInDateDay, checkInDateMonth, checkInDateYear, numberOfNights,
                       numberofGuests, name, addressStreet, addressCity, addressState,
                       addressZipCode, creditCardNumber, dailyRate, subTotal, tax,
                       total, phone);
        this.Hide();
        Form2 form2 = new Form2(newRes);
        form2.Show();
    }

}
}

Form2具有

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace Lab15
{
public partial class Form2 : Form
{
    private Reservation newRes;
    public Form2()
    {
        InitializeComponent();
    }
    public Form2(Reservation newRes)
    {
        this.newRes = newRes;
        InitializeComponent();
    }
    private void Form2_Load(object sender, EventArgs e)
    {
    }
    private void nextButton_Click(object sender, EventArgs e)
    {
        int day = newRes.CheckInDateDay;
        label5.Text = Convert.ToString(day);
    }
}
}

在表单2中，我使用下一个按钮来填充标签，而不是只检查值。

public class Reservation
{
   private int _checkInDateDay;
   public int CheckInDateDay
   {
      get { return _checkInDateDay; }
      set { _checkInDateDay = value; }
   }
}

public class Reservation
{
   public int CheckInDateDay { get; set; }
}