保存文件- xmlSerializer

Question

我正在使用下面的代码创建一个序列化文件的方法：

public void Save(Object file, Type type, String path)
{
    // Create a new Serializer
    XmlSerializer serializer = new XmlSerializer(typeof(type));

    // Create a new StreamWriter
    StreamWriter writer = new StreamWriter(@path);

    // Serialize the file
    serializer.Serialize(writer, file);

    // Close the writer
    writer.Close();
}

但Visual Studio在我尝试生成时告诉我：“错误1找不到类型或命名空间名称' type‘(是否缺少using指令或程序集引用？) c:\users\erik\documents\visual studio 2013\Projects\FileSerializer\FileSerializer\Class1.cs 16 65 FileSerializer”

为什么会这样呢？

**编辑*

可以工作的新代码：

public void Save(Object file, String path, Type type)
{
    // Create a new Serializer
    XmlSerializer serializer = new XmlSerializer(type);

    // Create a new StreamWriter
    TextWriter writer = new StreamWriter(path);

    // Serialize the file
    serializer.Serialize(writer, file);

    // Close the writer
    writer.Close();
}

public object Read(String path, Type type)
{
    // Create a new serializer
    XmlSerializer serializer = new XmlSerializer(type);

    // Create a StreamReader
    TextReader reader = new StreamReader(path);

    // Deserialize the file
    Object file;
    file = (Object)serializer.Deserialize(reader);

    // Close the reader
    reader.Close();

    // Return the object
    return file;
}

通过调用以下命令读取：

myClass newClass = (myClass)Read(file, type);

调用以下命令进行保存：

Save(object, path, type);

谢谢!埃里克

Answer 1

您的错误在new XmlSerializer(typeof(type));中。你不需要typeof。new XmlSerializer(type);就足够了。

由于序列化了file对象(其类型可以在函数中确定)，因此不必传递其类型。因此，您的代码可以重写为

public void Save<T>(T file, String path)
{
    XmlSerializer serializer = new XmlSerializer(typeof(T));

    using (StreamWriter writer = new StreamWriter(path))
    {
        serializer.Serialize(writer, file);
    }
}

Answer 2

var serializer = new System.Xml.Serialization.XmlSerializer(type);

而不是

XmlSerializer serializer = new XmlSerializer(typeof(type));

Answer 3

XmlSerializer接受一个Type参数。type已经是Type类型，所以您不需要对它调用typeof()。只有在将类名或泛型参数放入括号中时，才需要typeof()。