变量不保存在对象中

So I'm reading a file from XML and this works pretty well using the Debug-Output.

我正在从XML中读取一个文件，使用调试输出可以很好地工作。

while (reader.Read())
{
    if (reader.NodeType == XmlNodeType.Element && reader.Name == "Note")
    {
        Note n = new Note();

        reader.ReadToFollowing("NoteTitle");
        string s = reader.ReadElementContentAsString();
        n.NoteTitle = s;
        Debug.WriteLine("s " + s);
        Debug.WriteLine("n " + n.NoteTitle);
     }
}

My problem is that

我的问题是,

n.NoteTitle = s;

doesn't do anything so the second Debug prints only "n " and nothing else, while the first debug prints "s Notetitle1" correctly.

不做任何操作，因此第二个调试只打印“n”，而第一个调试只打印“Notetitle1”。

What is my problem?

我的问题是什么?

Edit: Sorry, implementation of NoteTitle:

编辑:对不起，实现NoteTitle:

private string _noteTitle = string.Empty;
    public string NoteTitle
    {
        get { return this._noteTitle; }
        set { RaisePropertyChanged("NoteTitle"); }
    }

2 个解决方案

#1

Looking at your implementation of the NoteTitle setter, you are forgetting to set the value of the private field i.e.

查看NoteTitle setter的实现，您忘记设置private字段的值。

private string _noteTitle = string.Empty; 

public string NoteTitle 
{ 
    get { return this._noteTitle; } 
    set 
    { 
        this._noteTitle = value; // set the field value
        RaisePropertyChanged("NoteTitle"); 
    } 
}

This would explain why no value is being retained when you set the NoteTitle property.

这将解释为什么在设置NoteTitle属性时没有保留值。

#2

The serialization in the OP seems to be throwing people off. I think the problem would be better expressed as:

OP中的序列化似乎让人很反感，我认为问题最好表述为:

    Note n = new Note();
    string s = "TEST";
    n.NoteTitle = s;
    Debug.WriteLine("s " + s);
    Debug.WriteLine("n " + n.NoteTitle);

The question becomes: Why does the second WriteLine() show "n " and not "n TEST"?

问题变成:为什么第二个WriteLine()显示“n”而不是“n TEST”?

The answer is that there is something peculiar about the implementation of either the setter or the getter for Note.NoteTitle. For example, this implementation would have the effect:

答案是，对于Note.NoteTitle的setter或getter的实现有一些特殊的地方。例如，这项执行将产生以下效果:

public string NoteTitle
{
    get
    {
        return "";
    }

    set
    {
        // Do nothing.
    }
}

#1