Best way to get InnerXml of an XElement?

2019-01-02 17:31发布

站内问答 / 前沿技术
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What's the best way to get the contents of the mixed body element in the code below? The element might contain either XHTML or text, but I just want its contents in string form. The XmlElement type has the InnerXml property which is exactly what I'm after.

The code as written almost does what I want, but includes the surrounding <body>...</body> element, which I don't want.

XDocument doc = XDocument.Load(new StreamReader(s));
var templates = from t in doc.Descendants("template")
                where t.Attribute("name").Value == templateName
                select new
                {
                   Subject = t.Element("subject").Value,
                   Body = t.Element("body").ToString()
                };

15条回答
零度萤火
2楼-- · 2019-01-02 18:10

// using Regex might be faster to simply trim the begin and end element tag

var content = element.ToString();
var matchBegin = Regex.Match(content, @"<.+?>");
content = content.Substring(matchBegin.Index + matchBegin.Length);          
var matchEnd = Regex.Match(content, @"</.+?>", RegexOptions.RightToLeft);
content = content.Substring(0, matchEnd.Index);
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步步皆殇っ
3楼-- · 2019-01-02 18:11

you know? the best thing to do is to back to CDATA :( im looking at solutions here but i think CDATA is by far the simplest and cheapest, not the most convenient to develop with tho

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泛滥B
4楼-- · 2019-01-02 18:13

How about using this "extension" method on XElement? worked for me !

public static string InnerXml(this XElement element)
{
    StringBuilder innerXml = new StringBuilder();

    foreach (XNode node in element.Nodes())
    {
        // append node's xml string to innerXml
        innerXml.Append(node.ToString());
    }

    return innerXml.ToString();
}

OR use a little bit of Linq 

public static string InnerXml(this XElement element)
{
    StringBuilder innerXml = new StringBuilder();
    doc.Nodes().ToList().ForEach( node => innerXml.Append(node.ToString()));

    return innerXml.ToString();
}

Note: The code above has to use element.Nodes() as opposed to element.Elements(). Very important thing to remember the difference between the two. element.Nodes() gives you everything like XText, XAttribute etc, but XElement only an Element.

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