[WebMethod(EnableSession = true)]
public ??? HelloWorld()
{
int[] i = {1,2,3,4,5};
string[] j = { "a", "b" };
var select = from a in i from b in j select new { Int=a,String=b};
return select;
}
List<T> list= (from i in db select new {id=db.id,title=db.title}).ToList();
XmlSerializer ser = new XmlSerializer(list.GetType());
ser.Serialize(new FileStream(@"a.xml", FileMode.Create), list);