我是C＃的新手。我在网上搜索了最后几天为我的问题找到解决方案，但我发现的一切都太复杂了。我想做的事：读取一个简单的XML文件，并将eache值保存到我可以在C＃程序中使用的变量中。这是XML：
<?xml version="1.0" encoding="utf-8"?>
<Settings>
<General>
<Option1>66</Option1>
<Option2>78</Option2>
<Checkbox1>False</Checkbox1>
</General>
<Advanced>
<AdvOption1>22</AdvOption1>
</Advanced>
</Settings>
所以，要明确我想要实现的目标：我想将“66”，“78”和“False”保存到变量中。永远不会有2个具有相同名称的XML节点。我无法真正显示任何C＃代码，因为我尝试了很多不同的片段，但它们都使用了循环，因为它正在读取多个“标题”或“作者”。我只是觉得它太简单了，这就是为什么网上没有任何东西:(
答案 0 :(得分：2)
尝试使用以下内容：
int opt1, opt2, advOpt1;
bool check;
XmlDocument doc = new XmlDocument();
doc.Load("YourXMLFile.xml");
opt1 = Convert.ToInt32(doc.SelectSingleNode("Settings/General/Option1").InnerText);
opt2 = Convert.ToInt32(doc.SelectSingleNode("Settings/General/Option2").InnerText);
check = Convert.ToBoolean(doc.SelectSingleNode("Settings/General/Checkbox1").InnerText);
advOpt1 = Convert.ToInt32(doc.SelectSingleNode("Settings/Advanced/AdvOption1").InnerText);
答案 1 :(得分：1)
有几种方法可以实现您的要求。这是使用XLinq的一个示例。您还可以使用基于xpath的解决方案（有关详细信息，请参阅此Link）。
该解决方案使用linq样式语法查询XML文件，请注意，在处理缺失部分或重复部分时需要做出一些决定，我选择了一个解决方案，但是由您来确定它适合您的应用需求。
using System;
using System.Collections.Generic;
using System.Linq;
using System.Xml.Linq;
namespace ConsoleApplication2
{
class Program
{
static void Main(string[] args)
{
// Get the XML doc from a file, similarly you can get it from a string or stream.
var doc = XDocument.Load("file.xml");
// Use linq style to get to the first Settings element or throw
var settings = doc.Elements("Settings").Single().Elements();
// Get root nodes for the settings type, if there is more than one ignore the rest and grab the first.
// Change the logic to throw or combine to match the rules for your app
var generalOptions = settings.FirstOrDefault(e => e.Name.LocalName == "General");
var advancedOptions = settings.FirstOrDefault(e => e.Name.LocalName == "Advanced");
var generalSettings = ExtractOptions(generalOptions);
var advancedSettings = ExtractOptions(advancedOptions);
}
private static Settings ExtractOptions(XElement rootElement)
{
var settings = new Settings();
if (rootElement != null)
{
var elements = rootElement.Elements();
settings.Options = elements.Where(e => e.Name.LocalName.IndexOf("Option", StringComparison.OrdinalIgnoreCase) >= 0)
.Select(e => int.Parse(e.Value))
.ToArray();
settings.CheckBoxes = elements.Where(e => e.Name.LocalName.StartsWith("CheckBox", StringComparison.OrdinalIgnoreCase))
.Select(e => bool.Parse(e.Value))
.ToArray();
}
return settings;
}
public class Settings
{
public int[] Options { get; set; }
public bool[] CheckBoxes { get; set; }
}
}
}
答案 2 :(得分：0)
虽然可能使用正则表达式等攻击它，但如果你只是正确地解析XML，那么从长远来看你会更好。
看看XDocument。以下是从https://github.com/slicify/nslicify
解析XML格式的Web响应的示例XML
<BidInfo xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="https://secure.slicify.com">
<BidID>32329</BidID>
<BookingID>131179</BookingID>
<Active>true</Active>
<MaxPrice>0.01</MaxPrice>
<MinECU>20</MinECU>
<MinRAM>1024</MinRAM>
<Country/>
<Bits>64</Bits>
<Deleted>false</Deleted>
<IncLowBW>false</IncLowBW>
<ScriptID>153</ScriptID>
<UserData/>
</BidInfo>
分析器
private BidInfo BidInfoParser(XDocument doc)
{
BidInfo info = null;
//get the first record in the result set
XContainer c1 = (XContainer)(doc);
XContainer c2 = (XContainer)(c1.FirstNode);
//loop through fields
foreach (XNode node in c2.Nodes())
{
XElement el = (XElement)node;
string key = el.Name.LocalName;
string value = el.Value;
//little hack to only set BidInfo if there are some values
if(info == null)
info = new BidInfo();
if (key.Equals("Active", StringComparison.InvariantCultureIgnoreCase))
info.Active = Convert.ToBoolean(value);
else if (key.Equals("BidID", StringComparison.InvariantCultureIgnoreCase))
info.BidID = Convert.ToInt32(value);
else if (key.Equals("Bits", StringComparison.InvariantCultureIgnoreCase))
info.Bits = Convert.ToInt32(value);
else if (key.Equals("BookingID", StringComparison.InvariantCultureIgnoreCase))
info.BookingID = Convert.ToInt32(value);
else if (key.Equals("Country", StringComparison.InvariantCultureIgnoreCase))
info.Country = value;
else if (key.Equals("MaxPrice", StringComparison.InvariantCultureIgnoreCase))
info.MaxPrice = Convert.ToDecimal(value);
else if (key.Equals("MinECU", StringComparison.InvariantCultureIgnoreCase))
info.MinECU = Convert.ToInt32(value);
else if (key.Equals("MinRAM", StringComparison.InvariantCultureIgnoreCase))
info.MinRAM = Convert.ToInt32(value);
else if (key.Equals("Deleted", StringComparison.InvariantCultureIgnoreCase))
info.Deleted = Convert.ToBoolean(value);
else if (key.Equals("IncLowBW", StringComparison.InvariantCultureIgnoreCase))
info.IncludeLowBandwidth = Convert.ToBoolean(value);
else if (key.Equals("scriptID", StringComparison.InvariantCultureIgnoreCase))
info.ScriptID = Convert.ToInt32(value);
else if (key.Equals("userdata", StringComparison.InvariantCultureIgnoreCase))
info.UserData = value;
else
throw new Exception("Unknown tag in XML:" + key + " = " + value);
}
return info;
}
/// <summary>
/// Contains information about this bid.
/// </summary>
public class BidInfo
{
public int BidID { get; set; }
public int BookingID { get; set; }
public bool Active { get; set; }
public decimal MaxPrice { get; set; }
public int MinECU { get; set; }
public int MinRAM { get; set; }
public string Country { get; set; }
public int Bits { get; set; }
public bool Deleted { get; set; }
public bool IncludeLowBandwidth { get; set; }
public int ScriptID { get; set; }
public string UserData { get; set; }
}