这是我的 XML 结构,它是一个事件列表,每个事件都包含一个事件时间列表。我需要返回“TIME”值的列表,但我坚持如何获取这些值(请注意,我需要查询此列表并按“Id”过滤)
到目前为止的代码:
public IEnumerable<EventFeed> GetEventDatesByEventId(int eventId)
{
return (from feed in xmlDoc.Descendants("Event")
where (int)feed.Element("Id") == eventId
from ev in feed.Elements("Times")
select new EventFeed()
{
EventDate = (DateTime)ev.Element("Time")
}).ToList().OrderByDescending(x => x.EventDate);
}
谢谢 千字节
最佳答案
关闭,您需要选择<Times>
首先节点或使用 Descendants
自 <Time>
下面是EventTime
:
return (from feed in xmlDoc.Descendants("Event")
where (int)feed.Element("Id") == eventId
from et in feed.Element("Times").Elements("EventTime")
select new EventFeed()
{
EventDate = (DateTime)et.Element("Time")
}).ToList().OrderByDescending(x => x.EventDate);
示例:
string xml = @"<?xml version=""1.0"" ?>
<Events>
<Event>
<Id>542</Id>
<Times>
<EventTime>
<Time>2011-11-28T14:00:00</Time>
</EventTime>
<EventTime>
<Time>2011-11-30T10:00:00</Time>
</EventTime>
<EventTime>
<Time>2011-11-30T09:00:00</Time>
</EventTime>
</Times>
</Event>
</Events>";
int eventId = 542;
foreach (var evt in GetEvents(XDocument.Parse(xml), eventId)
{
Console.WriteLine("{0}", evt.EventDate);
}
输出:
11/30/2011 10:00:00
11/30/2011 09:00:00
11/28/2011 14:00:00
关于C# XML 后代查询,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/6650426/