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c#xmlserializationxml-serializationstreamwriter

Save file - xmlSerializer


I'm creating a method to serialize a file using this code:

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();
}

But Visual Studio tells me this when I attempt to build: "Error 1 The type or namespace name 'type' could not be found (are you missing a using directive or an assembly reference?) c:\users\erik\documents\visual studio 2013\Projects\FileSerializer\FileSerializer\Class1.cs 16 65 FileSerializer "

Why is this?

**EDIT*

New code that works:

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;
}

read by calling:

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

Save by calling:

Save(object, path, type);

Thanks! Erik


Solution

  • Your error is in new XmlSerializer(typeof(type));. You don't need typeof. new XmlSerializer(type); is enough.

    Since you serialize file object (and its type can be determined in the function) you don't have to pass its type. So your code can be re-written as

    public void Save<T>(T file, String path)
    {
        XmlSerializer serializer = new XmlSerializer(typeof(T));
    
        using (StreamWriter writer = new StreamWriter(path))
        {
            serializer.Serialize(writer, file);
        }
    }