public void AddStudent(Student student)
{
var id = int.Parse(this.StudentsXmlDocument.Root.Attribute("last-id").Value) + 1;
this.StudentsXmlDocument.Root.Attribute("last-id").SetValue(id);
var idAttribute = new XAttribute("id", id);
var firstnameAttribute = new XAttribute("firstname", student.FirstName);
var lastnameAttribute = new XAttribute("lastname", student.LastName);
var markElements =
(from mark in student.Marks
select new XElement("mark",
new XAttribute("subject", mark.Subject),
new XAttribute("score", mark.Score)));
var marksElement = new XElement("marks", markElements);
var studentElement = new XElement("student", idAttribute, firstnameAttribute, lastnameAttribute,
marksElement);
this.StudentsXmlDocument.Root.Add(studentElement);
this.SaveDocument();
}
private Student ParseStudent(XElement studentElement)
{
int id = int.Parse(studentElement.Attribute("id").Value);
string firstname = studentElement.Attribute("firstname").Value;
string lastname = studentElement.Attribute("lastname").Value;
IEnumerable<Mark> marks =
(from markElement in studentElement.Element("marks").Elements("mark")
select this.ParseMark(markElement));
var student = new Student()
{
Id = id,
FirstName = firstname,
LastName = lastname,
Marks = marks
};
return student;
}
