YAXLib: Yet Another XML Serialization Library

Project Status: Looking for contributors and maintainers

We need your help with this project. If you like it, and you are familiar with XML or are willing to help and learn, you can take on different tasks and open pull requests.

We will continue to provide support for current users and publish bug fix releases as far as time allows.

About YAXLib

YAXLib is a flexible XML serialization library that lets developers design freely the XML file structure, choose among private and public fields to be serialized, and serialize all known collection classes and arrays (single-dimensional, multi-dimensional, and jagged arrays) in the .NET Framework.

YAXLib can be used as a powerful XML parser or generator, that exploits the object to XML mapping in the class definitions themselves.

The exception handling policies and its missing data recovery capabilities makes YAXLib a reliable tool for XML configuration storage and retrieval.

Features

Allowing the programmer to format the XML result as desired
Support for specifying path-like serialization addresses, e.g., elem1/elem2/elem3, and ../elem1, and ./elem1
Support for XML namespaces
Serialization and deserialization of all known generic and non-generic collection classes in System.Collections, and System.Collections.Generic
Support for serialization of single-dimensional, multi-dimensional, and jagged arrays
Support for recursive serialization of collections (i.e., collection of collections)
Support for specifying aliases for enum members
Support for defining user-defined custom serializer for specific types or specific fields
Allowing the programmer to choose the fields to serialize (public, or non-public properties, or member variables)
Support for serialization and deserialization of objects through a reference to their base-class or interface (also known as polymorphic serialization)
Support for multi-stage deserialization
Allowing the programmer to add comments for the elements in the XML result
and more ...

See the accompanied demo application for an example of each functionality.

Documentation

In the first place please have a look at the YAXLib Wiki. It is a good source to start. The next best documentation for YAXLib is its various samples and unit-tests in this repo.

To play with sample classes, open one of the solution files in Visual Studio, go to YAXLibTests project, SampleClasses folder. If you want a sample class to appear in the demo application simply put a [ShowInDemoApplication] attribute on top of the class definition. In the demo application you can see the serialization result, modify it, and test its deserialization.

Nuget

To install YAXLib, run the following command in the Package Manager Console:

PM> Install-Package YAXLib

A Quick Introduction

Imagine that we have a simple Warehouse class with the following definition:

public class Warehouse
{
    public class Person
    {
        public string SSN { get; set; }
        public string Name { get; set; }
        public string Family { get; set; }
        public int Age { get; set; }
    }

    public string Name { get; set; }
    public string Address { get; set; }
    public double Area { get; set; }
    public List<string> Items { get; set; }
    public Dictionary<string, int> ItemQuantitiesDic { get; set; }
    public Person Owner { get; set; }
}

Without adding any attributes, YAXLib is perfectly capable of serializing objects of the above class. The following is an XML serialization of a sample instantiation of our Warehouse class:

<Warehouse>
  <Name>Foo Warehousing Ltd.</Name>
  <Address>No. 10, Some Ave., Some City, Some Country</Address>
  <Area>120000.5</Area>
  <Items>
    <String>Bicycle</String>
    <String>Football</String>
    <String>Shoe</String>
    <String>Treadmill</String>
  </Items>
  <ItemQuantitiesDic>
    <KeyValuePairOfStringInt32>
      <Key>Bicycle</Key>
      <Value>10</Value>
    </KeyValuePairOfStringInt32>
    <KeyValuePairOfStringInt32>
      <Key>Football</Key>
      <Value>120</Value>
    </KeyValuePairOfStringInt32>
    <KeyValuePairOfStringInt32>
      <Key>Shoe</Key>
      <Value>600</Value>
    </KeyValuePairOfStringInt32>
    <KeyValuePairOfStringInt32>
      <Key>treadmill</Key>
      <Value>25</Value>
    </KeyValuePairOfStringInt32>
  </ItemQuantitiesDic>
  <Owner>
    <SSN>123456789</SSN>
    <Name>John</Name>
    <Family>Doe</Family>
    <Age>50</Age>
  </Owner>
</Warehouse>

It's good to have it serialized this simple, but YAXLib can do more than that. Let's do some house-keeping on the XML side. Let's move the XML-elements and attributes around, so that we will have a nicer and more human readable XML file. Let's decorate our Warehouse class with the following YAXLib attributes and see the XML result.

[YAXComment("Watch it closely. It's awesome, isn't it!")]
public class Warehouse
{
    public class Person
    {
        [YAXAttributeFor("..")]
        [YAXSerializeAs("OwnerSSN")]
        public string SSN { get; set; }

        [YAXAttributeFor("Identification")]
        public string Name { get; set; }

        [YAXAttributeFor("Identification")]
        public string Family { get; set; }

        public int Age { get; set; }
    }

    [YAXAttributeForClass]
    public string Name { get; set; }

    [YAXSerializeAs("address")]
    [YAXAttributeFor("SiteInfo")]
    public string Address { get; set; }

    [YAXSerializeAs("SurfaceArea")]
    [YAXElementFor("SiteInfo")]
    public double Area { get; set; }

    [YAXCollection(YAXCollectionSerializationTypes.Serially, SeparateBy = ", ")]
    [YAXSerializeAs("AvailableItems")]
    public List<string> Items { get; set; }

    [YAXDictionary(EachPairName = "ItemInfo", KeyName = "Item", ValueName = "Count",
                    SerializeKeyAs = YAXNodeTypes.Attribute,
                    SerializeValueAs = YAXNodeTypes.Attribute)]
    [YAXCollection(YAXCollectionSerializationTypes.RecursiveWithNoContainingElement)]
    [YAXSerializeAs("ItemQuantities")]
    public Dictionary<string, int> ItemQuantitiesDic { get; set; }

    public Person Owner { get; set; }
}

And this is the result of XML serialization:

<!-- Watch it closely. It's awesome, isn't it! -->
<Warehouse Name="Foo Warehousing Ltd." OwnerSSN="123456789">
  <SiteInfo address="No. 10, Some Ave., Some City, Some Country">
    <SurfaceArea>120000.5</SurfaceArea>
  </SiteInfo>
  <AvailableItems>Bicycle, Football, Shoe, Treadmill</AvailableItems>
  <ItemInfo Item="Bicycle" Count="10" />
  <ItemInfo Item="Football" Count="120" />
  <ItemInfo Item="Shoe" Count="600" />
  <ItemInfo Item="treadmill" Count="25" />
  <Owner>
    <Identification Name="John" Family="Doe" />
    <Age>50</Age>
  </Owner>
</Warehouse>

And even more: You can deserialize this XML back to an instance of the Warehouse class.

Contributors

Sina Iravanian
Julian Verdurmen
axuno gGmbH
and many others. See Change Log for the list of all the people who kindly contributed to YAXLib.

Logo

Logo designed by axuno gGmbH

YAXLib / YAXLib