LINQ的XML对象 - 如何填充集合<富> [英] Linq xml to object - How to populate a Collection<foo>

问题描述

我需要阅读一些XML和填充我的阶级结构。我会很高兴，如果有人可以给我提供了一些整洁的代码

I need to read some xml and populate my class-structure. I would be so happy if somebody could provide me some neat code for that.

我的简化的类结构：

public class Event
{
    [XmlAttribute("Id")]
    public string Id { get; set; }

    [XmlElement("StartTimes")]
    public Collection<StartTime> StartTimeCollection;        
}

public class StartTime
{
    [XmlAttribute("Time")]
    public string Start { get; set; }
    [XmlAttribute("Mon")]
    public bool Monday { get; set; }
    [XmlAttribute("Tue")]
    public bool Tuesday { get; set; }
    [XmlAttribute("Wed")]
    public bool Wednesday { get; set; }
    [XmlAttribute("Thu")]
    public bool Thursday { get; set; }
    [XmlAttribute("Fri")]
    public bool Friday { get; set; }
    [XmlAttribute("Sat")]
    public bool Saturday { get; set; }
    [XmlAttribute("Sun")]
    public bool Sunday { get; set; }
}

XML如下：

<Event Id="f7cfc3a5-5b1b-4941-8d7b-f8a4a71fa530">
  <StartTimes>
    <StartTime Time="19:00" Mon="false" Tue="false" Wed="false" Thu="false" Fri="true" Sat="false" Son="false"/>
  </StartTimes>
</Event>

这就是我的LINQ声明的样子：

And that's how my linq statement looks like:

from x in doc.Descendants("Event")
select new Event()
{
Id = x.Attribute("Id").Value,
StartTimeCollection = x.Descendants("StartTimes") ????????? <-- That's the tricky part for me
}

问候

Regards

推荐答案

由于收藏< T> 暴露出的构造接受一个的IList< T> ，您可以使用的SelectMany（）并写：

Since Collection<T> exposes a constructor that takes an IList<T>, you can use SelectMany() and write:

from x in doc.Descendants("Event")
select new Event() {
    Id = x.Attribute("Id").Value,
    StartTimeCollection = new Collection<StartTime>(
        x.Descendants("StartTimes").SelectMany(
            startTimes => startTimes.Elements("StartTime").Select(
                startTime => new StartTime() {
                    Start = startTime.Attribute("Time").Value,
                    Monday = Boolean.Parse(startTime.Attribute("Mon").Value),
                    Tuesday = Boolean.Parse(startTime.Attribute("Tue").Value),
                    Wednesday = Boolean.Parse(startTime.Attribute("Wed").Value),
                    Thursday = Boolean.Parse(startTime.Attribute("Thu").Value),
                    Friday = Boolean.Parse(startTime.Attribute("Fri").Value),
                    Saturday = Boolean.Parse(startTime.Attribute("Sat").Value),
                    Sunday = Boolean.Parse(startTime.Attribute("Son").Value)
                })).ToList())
}

请注意，我用属性（儿子） 而不是属性（太阳报）来初始化周日属性，因为属性被命名一样，在您的标记。这可能是一个错字，但。

Note that I used Attribute("Son") instead of Attribute("Sun") to initialize the Sunday property, since the attribute is named like that in your markup. It might be a typo, though.

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