我有以下xml架构。
<Rooms>
<Room RoomNumber="room1" EMAIL="ssds@dsfd.com" dsfdd=""/>
<Room RoomNumber="room2" EMAIL="ssds@sdd.com" dsfdd=""/>
</Rooms>
我必须根据输入返回电子邮件地址(输入程序是房间号码)。
如何使用LINQ to XML实现这一目标?
答案 0 :(得分:2)
试试这个:
var xml = XElement.Parse("<Rooms>"+
"<Room RoomNumber=\"room1\" EMAIL=\"ssds@dsfd.com\" dsfdd=\"\"/>"+
"<Room RoomNumber=\"room2\" EMAIL=\"ssds@sdd.com\" dsfdd=\"\"/>"+
"</Rooms>");
string room = "room1"; //input
var email = xml.Elements("Room")
.Where(c => c.Attribute("RoomNumber").Value == room)
.Select(c => c.Attribute("EMAIL").Value).FirstOrDefault();
答案 1 :(得分:1)
var doc = XDocument.Load(myXmlFilePath);
// or doc = XDocument.Parse(myXmlString);
string roomNumber = "room1";
var emailQuery = from room in doc.Root.Elements("Room")
where (string)room.Attribute("RoomNumber") == roomNumber
select (string)room.Attribute("EMAIL");
然后,通过这样的查询,您可以获得结果:
// if there is always only one <Room> with given roomNumber
var email = emailQuery.First();
// otherwise
var emails = emailQuery.ToList();