[LINQ] 메모리상의 객체를 XML 로 변환하기

Transforming in-Memory Objects into XML

LINQ queries make it easy to transform data between in-memory data structures, SQL databases, ADO.NET Datasets and XML streams or documents. The following example transforms objects in an in-memory data structure into XML elements.

C#

class XMLTransform
{
    static void Main()
    {            
        // Create the data source by using a collection initializer. 
        // The Student class was defined previously in this topic.
        List<Student> students = new List<Student>()
        {
            new Student {First="Svetlana", Last="Omelchenko", ID=111, Scores = new List<int>{97, 92, 81, 60}},
            new Student {First="Claire", Last="O’Donnell", ID=112, Scores = new List<int>{75, 84, 91, 39}},
            new Student {First="Sven", Last="Mortensen", ID=113, Scores = new List<int>{88, 94, 65, 91}},
        };

        // Create the query. 
        var studentsToXML = new XElement("Root",
            from student in students
            let x = String.Format("{0},{1},{2},{3}", student.Scores[0],
                    student.Scores[1], student.Scores[2], student.Scores[3])
            select new XElement("student",
                       new XElement("First", student.First),
                       new XElement("Last", student.Last),
                       new XElement("Scores", x)
                    ) // end "student"
                ); // end "Root" 

        // Execute the query.
        Console.WriteLine(studentsToXML);

        // Keep the console open in debug mode.
        Console.WriteLine("Press any key to exit.");
        Console.ReadKey();
    }
}

The code produces the following XML output:

< Root>
  <student>
    <First>Svetlana</First>
    <Last>Omelchenko</Last>
    <Scores>97,92,81,60</Scores>
  </student>
  <student>
    <First>Claire</First>
    <Last>O'Donnell</Last>
    <Scores>75,84,91,39</Scores>
  </student>
  <student>
    <First>Sven</First>
    <Last>Mortensen</Last>
    <Scores>88,94,65,91</Scores>
  </student>
</Root>

For more information, see Creating XML Trees in C# (LINQ to XML).