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Linq to Xml, Filter Element from Query (C#)

Answer 1

+1 A:

One way to do this would be to grab the document, query for the stuff you don't want, and then .Remove() them. For example, if you're XML looked something like the following:

<body>
    Stuff I want
    <element>Stuff I dont want</element>
    <element>Stuff I want</element>
</body>

You could do the following code to alter the document with everything except for the containing "Stuff I don't want":

        var doc = XDocument.Load("foo.xml");

        IEnumerable<XElement> nodes =
                                from node in doc.Descendants("element")
                                where node.Value == "Stuff I dont want"
                                select node;

        if (nodes != null)
        {
            nodes.Remove();
        }

Which would then yield the following in your doc:

<body>
    Stuff I want
    <element>Stuff I want</element>
</body>

nithins 2010-09-21 15:03:42

@nithins - Almost tempted to ruin your very nice score (404) with an upvote :), but shouldn't `nodes.Remove()` actually be more along the lines of `nodes.ToList().ForEach(e => e.Remove())` ? (Also, for more nitpicking, I think `nodes` will never be null, just possibly empty)

Alex Paven 2010-09-21 18:40:32

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