題
我正在嘗試將html文檔轉換為c＃對象。我有一個有序列表中的名稱示例列表，如下所示。我正在使用Html Agility Pack。
<ol>
<li>Heather</li>
<li>Channing</li>
<li>Briana</li>
<li>Amber</li>
<li>Sabrina</li>
<li>Jessica
<ol>
<li>Melody</li>
<li>Dakota</li>
<li>Sierra</li>
<li>Vandi</li>
<li>Crystal</li>
<li>Samantha</li>
<li>Autumn</li>
<li>Ruby</li>
</ol></li>
<li>Taylor</li>
<li>Tara</li>
<li>Tammy</li>
<li>Laura</li>
<li>Shelly</li>
<li>Shantelle</li>
<li>Bob and Alice
<ol>
<li>Courtney</li>
<li>Misty</li>
<li>Jenny</li>
<li>Christa</li>
<li>Mindy</li>
</ol></li>
<li>Noel</li>
<li>Shelby</li>
</ol>
這些是我創建的用於表示名稱列表的對象。即人和他們的孩子。
public class PeopleList {
public List<Person> People {get; set;}
}
public class Person {
public string Name {get; set;}
public PeopleList Children {get; set;}
}
我在想創建這些對象，遞歸函數最好。任何人都可以提供有關如何將html轉換為c＃對象的任何想法嗎？
阿布。
一般承認的答案
HtmlAgilityPack.HtmlDocument doc = new HtmlAgilityPack.HtmlDocument();
doc.LoadHtml(html);
var list = Recurse(doc.DocumentNode);
List<Person> Recurse(HtmlAgilityPack.HtmlNode root)
{
var ol = root.Element("ol");
if (ol == null) return null;
return ol.Elements("li")
.Select(li => new Person
{
Name = li.FirstChild.InnerText.Trim(),
Children = Recurse(li)
})
.ToList();
}
熱門答案
為了好玩 - 或者如果你真的想要一個PeopleList列表，其人員列表的人員列表：p - 你可以做類似的事情（你發布的代碼不需要HtmlAgilityPack）：
namespace StackFun
{
using System.Collections.Generic;
using System.Linq;
using System.Xml.Linq;
public class PeopleList
{
public List<Person> People { get; set; }
}
public class Person
{
public string Name { get; set; }
public PeopleList Children { get; set; }
}
class Program
{
static IEnumerable<PeopleList> GetChildren(PeopleList parent, IEnumerable<XElement> children)
{
parent.People = new List<Person>();
foreach (var child in children)
{
var person = new Person
{
Name = ((XText)child.FirstNode).Value.Trim(new[] { ' ', '\r', '\n' }),
};
parent.People.Add(person);
foreach (var childrenOf in child.Elements("ol").SelectMany(BuildFromXml))
{
person.Children = childrenOf;
}
}
yield return parent;
}
static IEnumerable<PeopleList> BuildFromXml(XElement node)
{
return GetChildren(new PeopleList(), node.Elements("li"));
}
static void Main(string[] args)
{
const string xml = @"<ol>
<li>Heather</li>
<li>Channing</li>
<li>Briana</li>
<li>Amber</li>
<li>Sabrina</li>
<li>Jessica
<ol>
<li>Melody</li>
<li>Dakota</li>
<li>Sierra</li>
<li>Vandi</li>
<li>Crystal</li>
<li>Samantha</li>
<li>Autumn</li>
<li>Ruby</li>
</ol></li>
<li>Taylor</li>
<li>Tara</li>
<li>Tammy</li>
<li>Laura</li>
<li>Shelly</li>
<li>Shantelle</li>
<li>Bob and Alice
<ol>
<li>Courtney</li>
<li>Misty</li>
<li>Jenny</li>
<li>Christa</li>
<li>Mindy</li>
</ol></li>
<li>Noel</li>
<li>Shelby</li>
</ol>";
var doc = XDocument.Parse(xml);
var listOfPeople = BuildFromXml(doc.Root).ToList();
}
}
}
您可能想要的（猜測您沒有指定）是您可以使用的人員及其子女列表：
static IEnumerable<Person>Populate(IEnumerable<XElement> children)
{
foreach (var child in children)
{
var person = new Person
{
Name = ((XText)child.FirstNode).Value.Trim(new[] { ' ', '\r', '\n' }),
Children = new PeopleList()
};
person.Children.People = new List<Person>();
foreach (var childrenOf in child.Elements("ol").SelectMany(BuildFromXml))
{
person.Children.People.Add(childrenOf);
}
yield return person;
}
}
static IEnumerable<Person> BuildFromXml(XElement node)
{
return Populate(node.Elements("li"));
}
如果您想（或需要）使用HtmlAgilityPack，代碼可能如下所示：
class Program
{
static IEnumerable<Person> Populate(IEnumerable<HtmlNode> children)
{
foreach (var child in children)
{
var person = new Person
{
Name = child.InnerText.Split(new char[] { '\r', '\n' })[0].Trim(),
Children = new PeopleList()
};
person.Children.People = new List<Person>();
foreach (var childrenOf in child.Elements("ol").SelectMany(BuildFromHtml))
{
person.Children.People.Add(childrenOf);
}
yield return person;
}
}
static IEnumerable<Person> BuildFromHtml(HtmlNode node)
{
return Populate(node.Elements("li"));
}
static void Main(string[] args)
{
const string html = @"<ol>
<li>Heather</li>
<li>Channing</li>
<li>Briana</li>
<li>Amber</li>
<li>Sabrina</li>
<li>Jessica
<ol>
<li>Melody</li>
<li>Dakota</li>
<li>Sierra</li>
<li>Vandi</li>
<li>Crystal</li>
<li>Samantha</li>
<li>Autumn</li>
<li>Ruby</li>
</ol></li>
<li>Taylor</li>
<li>Tara</li>
<li>Tammy</li>
<li>Laura</li>
<li>Shelly</li>
<li>Shantelle</li>
<li>Bob and Alice
<ol>
<li>Courtney</li>
<li>Misty</li>
<li>Jenny</li>
<li>Christa</li>
<li>Mindy</li>
</ol></li>
<li>Noel</li>
<li>Shelby</li>
</ol>";
var doc = new HtmlDocument();
doc.LoadHtml(html);
var listOfPeople = BuildFromHtml(doc.DocumentNode.FirstChild).ToList();
}
}