二进制序列化，我想我几乎可以让它工作了

Question

当我保存文件时，文件已创建，但当我尝试加载时，没有加载任何内容。我觉得我就快把它弄好了。任何建议都将不胜感激。代码如下：

保存/加载类

[Serializable()]
public class SaveLoad : ISerializable
{
    public int GameDay = Date.GameDay;
    public List<Adventurer> Adventurers = FormMain.AdventurerManager.AdventurerList;

    public SaveLoad()
    {
        GameDay = 0;
        Adventurers = null;
    }

    public SaveLoad(SerializationInfo info, StreamingContext ctxt)
    {
        GameDay = (int)info.GetValue("Date", typeof(int));
        Adventurers = (List<Adventurer>)info.GetValue("Adventurers", typeof(List<Adventurer>));
    }

    public void GetObjectData(SerializationInfo info, StreamingContext ctxt)
    {
        info.AddValue("Date", GameDay);
        info.AddValue("Adventurers", Adventurers);
    }
}

保存/加载方法：

    void btnSaveGame_Click(object sender, EventArgs e)
    {
        SaveLoad save = new SaveLoad();

        Stream stream = File.Open("SaveGame.osl", FileMode.Create);
        BinaryFormatter bformatter = new BinaryFormatter();

        bformatter.Serialize(stream, save);
        stream.Close();
    }

    void btnLoadGame_Click(object sender, EventArgs e)
    {
        SaveLoad load = new SaveLoad();

        Stream stream = File.Open("SaveGame.osl", FileMode.Open);
        BinaryFormatter bformatter = new BinaryFormatter();

        load = (SaveLoad)bformatter.Deserialize(stream);
        stream.Close();

        Date.CalculateDate();

        this.Visible = false;
        ((FormMain)(this.ParentForm)).ControlMainScreen.Visible = true;
    }

Answer 1

我想你可能只是遇到了初始化时间的问题。

尝试要么将GameDay和冒险者的初始化移到构造函数中，要么在构造函数中消除它们的空值。一旦我执行了以下操作，代码就可以正常工作了：

public SaveLoad()
{
    //GameDay = null;
    //Adventurers = null;
}

注我还必须确保Adventurer类具有Serialization属性。

以下是适用于我的带有序列化的代码(我必须创建自己的Adventurer类，并且我用字符串替换了日期，因为我不知道您在用它做什么，或者它来自哪里。我还用一些虚拟数据填充了冒险者列表，并注释掉了任何与表单相关的内容，但我也没有关于这些内容的信息。

[Serializable()]
public class SaveLoad : ISerializable
{
    public string GameDay = null;
    public List<Adventurer> Adventurers = null; 
        //FormMain.AdventurerManager.AdventurerList;

    public SaveLoad()
    {
        GameDay = "Date";
        Adventurers = new List<Adventurer>() { new Adventurer { Name = "a1", Type = "t1" }, new Adventurer { Name = "a1", Type = "t1" } }; ;
    }

    public SaveLoad(SerializationInfo info, StreamingContext ctxt)
    {
        GameDay = (string)info.GetValue("Date", typeof(string));
        Adventurers = (List<Adventurer>)info.GetValue("Adventurers", typeof(List<Adventurer>));
    }

    public void GetObjectData(SerializationInfo info, StreamingContext ctxt)
    {
        info.AddValue("Date", GameDay);
        info.AddValue("Adventurers", Adventurers);
    }
}
[Serializable()]
public class Adventurer
{
    public string Name { get; set; }
    public string Type { get; set; }
}

private void btnLoadGame_Click(object sender, EventArgs e)
    {
        SaveLoad sl = new SaveLoad();

        Stream stream = File.Open("SaveGame.osl", FileMode.Open);
        BinaryFormatter bformatter = new BinaryFormatter();

        sl = (SaveLoad)bformatter.Deserialize(stream);
        stream.Close();

        MessageBox.Show(sl.Adventurers.Count.ToString());
        //Date.CalculateDate();

        //this.Visible = false;
        //((Form1)(this.ParentForm)).ControlMainScreen.Visible = true;

    }

    private void btnSaveGame_Click(object sender, EventArgs e)
    {
        SaveLoad sl = new SaveLoad();

        Stream stream = File.Open("SaveGame.osl", FileMode.Create);
        BinaryFormatter bformatter = new BinaryFormatter();

        bformatter.Serialize(stream, sl);
        stream.Close();

    }

Answer 2

编辑

@JasonHaley是对的，你有时间/初始化问题。

在Load按钮单击事件期间，您定义了一个名为"Load“的新SaveLoad

这将创建对FormMain.AdventurerManager.AdventurerList的引用

但是在反序列化期间，这个引用会被序列化到磁盘的对象(另一个冒险者列表)销毁，并且现在是一个不同于FormMain.AdventurerManager.AdventurerList中定义的冒险者列表

你需要特别地加载到列表中...

void btnLoadGame_Click(object sender, EventArgs e)
{
    Stream stream = File.Open("SaveGame.osl", FileMode.Open);
    BinaryFormatter bformatter = new BinaryFormatter();

    SaveLoad load = (SaveLoad)bformatter.Deserialize(stream);
    // ***********************************
    FormMain.AdventurerManager.AdventurerList = SaveLoad.Adventurers
    // ***********************************

    stream.Close();

    Date.CalculateDate();

    this.Visible = false;
    ((FormMain)(this.ParentForm)).ControlMainScreen.Visible = true;
}