c# - 将真值传递给 boolean 值

Question

我正在尝试学习 C#，并且正在学习一个使用 boolean 值的示例。对于我的生活，我无法弄清楚为什么程序没有注意到我正在尝试将 true 值传递给 boolean 值。这是 Form.cs 中的代码:

namespace WindowsFormsApplication7
{
public partial class Form1 : Form
{
    public Form1()
    {
        InitializeComponent();
    }

    private void button2_Click(object sender, EventArgs e)
    {
        HappyBirthday birthdayMessage = new HappyBirthday();
        string returnedMessage;

        birthdayMessage.PresentCount = 5;
        birthdayMessage.MyProperty = "Adam";
        birthdayMessage.hasParty = true;
        returnedMessage = birthdayMessage.MyProperty;

        MessageBox.Show(returnedMessage);

    }
}
}

这是我创建的类:

class HappyBirthday
{

//====================
//  CLASS VARIABLES
//====================
private int numberOfPresents;
private string birthdayMessage;
private bool birthdayParty;

//===========================
//  DEFAULT CONSTRUCTOR
//===========================
public HappyBirthday()
{
    numberOfPresents = 0;
    //birthdayParty = false;
}

//===========================
//      METHOD
//===========================
private string getMessage(string givenName)
{

    string theMessage;

    theMessage = "Happy Birthday " + givenName + "\n";
    theMessage += "Number of presents = ";
    theMessage += numberOfPresents.ToString() + "\n";

    if (birthdayParty == true)
    {
        theMessage += "Hope you enjoy the party!";
    }
    else
    {
        theMessage += "No party = sorry!";
    }

    return theMessage;
}

//================================
//      READ AND WRITE PROPERTY
//================================
public string MyProperty
{
    get { return birthdayMessage; }

    set { birthdayMessage = getMessage(value); }
}

//================================
//     WRITE-ONLY PROPERTY
//================================
public int PresentCount
{
    set { numberOfPresents = value; }
}

public bool hasParty
{
    set { birthdayParty = value; }
}

}

现在我将初始值设置为 false(即使我的理解是正确的，这应该是默认值)，但是当我尝试将其设置为 true 时，程序无法识别它。我是否应该以不同于字符串或整数的方式传递 boolean 值？

Answer 1

您在设置 hasParty 之前设置了 MyProperty。每次轮询 MyProperty 时，都不会调用 getMessage()。