c# - Linq 到 XML : from query to variable

Question

我写的是:

        XDocument doc = XDocument.Load("test.xml");
        string nodeName = "Mike";
        var query = from el in doc.Descendants("dogs")
                    where (string)el.Attribute("name") == nodeName
                    select
                    "Name: " + nodeName
                    + "\n" + "Breed: " + (string)el.Element("breed")
                    + "\n" + "Sex: " + (string)el.Element("sex");
        foreach (string data in query)
            MessageBox.Show(data);

因为我想加载这些数据，所以我想将它们放入变量中，以便稍后能够将它们放入文本框、单选框等中。目前我只知道如何用 MessageBox 显示它。

Answer 1

不确定您是否指的是这个，但您可以尝试一下:

创建一个新的公共(public)类:

    public class XmlResut
    {
        public string Name { get; set; }
        public string Breed { get; set; }
        public string Sex { get; set; } // Maybe a enum would fit this property better
    }

现在，您可以更改 LINQ 以使用 select new ( http://www.dotnetperls.com/select-new ) 创建已定义类的新实例

    XDocument doc = XDocument.Load("test.xml");
    string nodeName = "Mike";
    var query = from el in doc.Descendants("dogs")
                where (string)el.Attribute("name") == nodeName
                select new XmlResult(){
                    Name = nodeName,
                    Breed = (string)el.Element("breed")
                    Sex = (string)el.Element("sex")
                };
    foreach (string data in query)
    {
        Console.WriteLine(data.Name);
        Console.WriteLine(data.Breed);
        Console.WriteLine(data.Sex);
    }