XML vers JSON ou Vers où l'utiliser dans .NET C#

Question

Comment puis-je rassembler les données dans C# à partir de ce fichier xml? -je obtenir les données de: http://www.ecb.europa.eu/stats/eurofxref/eurofxref-daily.xml

PS: Je voudrais obtenir les taux de devises d'un service Web, bu, je ne pouvais pas trouver un service web digne de confiance, c'est pourquoi j'essaie de xml ...

<?xml version="1.0" encoding="UTF-8" ?> 
- <gesmes:Envelope xmlns:gesmes="http://www.gesmes.org/xml/2002-08-01" xmlns="http://www.ecb.int/vocabulary/2002-08-01/eurofxref"> 
    <gesmes:subject>Reference rates</gesmes:subject> 
- <gesmes:Sender> 
    <gesmes:name>European Central Bank</gesmes:name> 
    </gesmes:Sender> 
- <Cube> 
- <Cube time="2010-09-17"> 
    <Cube currency="USD" rate="1.3060" /> 
    <Cube currency="JPY" rate="111.98" /> 
    <Cube currency="BGN" rate="1.9558" /> 
    <Cube currency="CZK" rate="24.680" /> 
    <Cube currency="DKK" rate="7.4468" /> 
    <Cube currency="EEK" rate="15.6466" /> 
    <Cube currency="GBP" rate="0.83575" /> 
    <Cube currency="HUF" rate="282.82" /> 
    <Cube currency="LTL" rate="3.4528" /> 
    <Cube currency="LVL" rate="0.7087" /> 
    <Cube currency="PLN" rate="3.9622" /> 
    <Cube currency="RON" rate="4.2580" /> 
    <Cube currency="SEK" rate="9.2295" /> 
    <Cube currency="CHF" rate="1.3210" /> 
    <Cube currency="NOK" rate="7.9650" /> 
    <Cube currency="HRK" rate="7.2845" /> 
    <Cube currency="RUB" rate="40.4850" /> 
    <Cube currency="TRY" rate="1.9606" /> 
    <Cube currency="AUD" rate="1.3886" /> 
    <Cube currency="BRL" rate="2.2419" /> 
    <Cube currency="CAD" rate="1.3410" /> 
    <Cube currency="CNY" rate="8.7809" /> 
    <Cube currency="HKD" rate="10.1425" /> 
    <Cube currency="IDR" rate="11713.52" /> 
    <Cube currency="INR" rate="59.8530" /> 
    <Cube currency="KRW" rate="1515.90" /> 
    <Cube currency="MXN" rate="16.7075" /> 
    <Cube currency="MYR" rate="4.0512" /> 
    <Cube currency="NZD" rate="1.7940" /> 
    <Cube currency="PHP" rate="57.700" /> 
    <Cube currency="SGD" rate="1.7442" /> 
    <Cube currency="THB" rate="40.153" /> 
    <Cube currency="ZAR" rate="9.3307" /> 
    </Cube> 
    </Cube> 
    </gesmes:Envelope> 

Answer 1

Les premiers pas ressembleraient:

var doc = XDocument.Load(source); 
var ns = doc.Root.GetDefaultNamespace(); 

var topCube = doc.Root.Element(ns+"Cube"); 
var timeCube = topCube.Element(ns+"Cube"); 

string time = timeCube.Attribute("time").Value; 

var cubes = from c in timeCube.Elements() 
      select new 
      { Key = c.Attribute("currency").Value, 
       Value = decimal.Parse(c.Attribute("rate").Value, CultureInfo.InvariantCulture) 
      }; 

Et peut-être convertir comme ceci:

Dictionary<string,decimal> lookup = cubes.ToDictionary(a => a.Key, a => a.Value); 
decimal dollar = lookup["USD"];