Union with LINQ to XML

Posted by Ryan Riley on Stack Overflow See other posts from Stack Overflow or by Ryan Riley
Published on 2009-02-02T19:59:41Z Indexed on 2010/05/03 18:48 UTC
Read the original article Hit count: 452

Filed under:

linq-to-xml

|

union

|

c#

|

LINQ

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openxml-sdk

I need to union two sets of XElements into a single, unique set of elements. Using the .Union() extension method, I just get a "union all" instead of a union. Am I missing something?

var elements = xDocument.Descendants(w + "sdt")
                   .Union(otherDocument.Descendants(w + "sdt")
                   .Select(sdt =>
                       new XElement(
                           sdt.Element(w + "sdtPr")
                               .Element(w + "tag")
                               .Attribute(w + "val").Value,
                           GetTextFromContentControl(sdt).Trim())
                   )
               );

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