XDocument를 XmlDocument로 또는 그 반대로 변환

XDocument를 XmlDocument로 또는 그 반대로 변환

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내가 가진 매우 간단한 문제입니다. XDocument를 사용하여 XML 파일을 생성합니다. 그런 다음 XmlDocument 클래스로 반환하고 싶습니다. 그리고 더 많은 노드를 추가하기 위해 XDocument로 다시 변환 해야하는 XmlDocument 변수가 있습니다.

그렇다면 XDocument와 XmlDocument간에 XML을 변환 하는 가장 효율적인 방법 은 무엇 입니까? (파일에 임시 저장소를 사용하지 않고)

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내장 된 xDocument.CreateReader () 및 XmlNodeReader를 사용하여 앞뒤로 변환 할 수 있습니다.

작업하기 쉽도록 Extension 메서드에 넣습니다.

using System;
using System.Xml;
using System.Xml.Linq;

namespace MyTest
{
    internal class Program
    {
        private static void Main(string[] args)
        {

            var xmlDocument = new XmlDocument();
            xmlDocument.LoadXml("<Root><Child>Test</Child></Root>");

            var xDocument = xmlDocument.ToXDocument();
            var newXmlDocument = xDocument.ToXmlDocument();
            Console.ReadLine();
        }
    }

    public static class DocumentExtensions
    {
        public static XmlDocument ToXmlDocument(this XDocument xDocument)
        {
            var xmlDocument = new XmlDocument();
            using(var xmlReader = xDocument.CreateReader())
            {
                xmlDocument.Load(xmlReader);
            }
            return xmlDocument;
        }

        public static XDocument ToXDocument(this XmlDocument xmlDocument)
        {
            using (var nodeReader = new XmlNodeReader(xmlDocument))
            {
                nodeReader.MoveToContent();
                return XDocument.Load(nodeReader);
            }
        }
    }
}

출처 :

• http://msdn.microsoft.com/en-us/library/bb356384.aspx
• http://geekswithblogs.net/aspringer/archive/2009/07/01/xdocument-extension.aspx

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나 에게이 단선 솔루션은 잘 작동합니다.

XDocument y = XDocument.Parse(pXmldoc.OuterXml); // where pXmldoc is of type XMLDocument

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using System.Xml;
using System.Xml.Linq;

   #region Extention Method
    public static XElement ToXElement(this XmlElement element)
    {
        return XElement.Parse(element.OuterXml);
    }

    public static XmlElement ToXmlElement(this XElement element)
    {
        var doc = new XmlDocument();
        doc.LoadXml(element.ToString());
        return doc.DocumentElement;            
    }
    #endregion

Usage of this Extention are than done simply using something like this

System.Xml.XmlElement systemXml = (new XElement("nothing")).ToXmlElement();
System.Xml.Linq.XElement linqXml = systemXml.ToXElement();

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If you need to convert the instance of System.Xml.Linq.XDocument into the instance of the System.Xml.XmlDocument this extension method will help you to do not lose the XML declaration in the resulting XmlDocument instance:

using System.Xml; 
using System.Xml.Linq;

namespace www.dimaka.com
{ 
    internal static class LinqHelper 
    { 
        public static XmlDocument ToXmlDocument(this XDocument xDocument) 
        { 
            var xmlDocument = new XmlDocument(); 
            using (var reader = xDocument.CreateReader()) 
            { 
                xmlDocument.Load(reader); 
            }

            var xDeclaration = xDocument.Declaration; 
            if (xDeclaration != null) 
            { 
                var xmlDeclaration = xmlDocument.CreateXmlDeclaration( 
                    xDeclaration.Version, 
                    xDeclaration.Encoding, 
                    xDeclaration.Standalone);

                xmlDocument.InsertBefore(xmlDeclaration, xmlDocument.FirstChild); 
            }

            return xmlDocument; 
        } 
    } 
}

Hope that helps!

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You could try writing the XDocument to an XmlWriter piped to an XmlReader for an XmlDocument.

If I understand the concepts properly, a direct conversion is not possible (the internal structure is different / simplified with XDocument). But then, I might be wrong...

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There is a discussion on http://blogs.msdn.com/marcelolr/archive/2009/03/13/fast-way-to-convert-xmldocument-into-xdocument.aspx

It seems that reading an XDocument via an XmlNodeReader is the fastest method. See the blog for more details.

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If you need a Win 10 UWP compatible variant:

using DomXmlDocument = Windows.Data.Xml.Dom.XmlDocument;

    public static class DocumentExtensions
    {
        public static XmlDocument ToXmlDocument(this XDocument xDocument)
        {
            var xmlDocument = new XmlDocument();
            using (var xmlReader = xDocument.CreateReader())
            {
                xmlDocument.Load(xmlReader);
            }
            return xmlDocument;
        }

        public static DomXmlDocument ToDomXmlDocument(this XDocument xDocument)
        {
            var xmlDocument = new DomXmlDocument();
            using (var xmlReader = xDocument.CreateReader())
            {
                xmlDocument.LoadXml(xmlReader.ReadOuterXml());
            }
            return xmlDocument;
        }

        public static XDocument ToXDocument(this XmlDocument xmlDocument)
        {
            using (var memStream = new MemoryStream())
            {
                using (var w = XmlWriter.Create(memStream))
                {
                    xmlDocument.WriteContentTo(w);
                }
                memStream.Seek(0, SeekOrigin.Begin);
                using (var r = XmlReader.Create(memStream))
                {
                    return XDocument.Load(r);
                }
            }
        }

        public static XDocument ToXDocument(this DomXmlDocument xmlDocument)
        {
            using (var memStream = new MemoryStream())
            {
                using (var w = XmlWriter.Create(memStream))
                {
                    w.WriteRaw(xmlDocument.GetXml());
                }
                memStream.Seek(0, SeekOrigin.Begin);
                using (var r = XmlReader.Create(memStream))
                {
                    return XDocument.Load(r);
                }
            }
        }
    }

참고URL : https://stackoverflow.com/questions/1508572/converting-xdocument-to-xmldocument-and-vice-versa