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.NET Forum / .NET Framework / XML / February 2008ParentNode doesn't work
Hi, I am trying to retrieve title of the parent (post) by the id of the comment, Why doesn't this work? XML <root> <post> <title>text</title> <comment id='100'>text</comment> <comment id='101'>text</comment> </post> </root> ASP Dim xmlRoot As XmlNode Dim postId as Integer xmlRoot = xmldoc.SelectSingleNode("root") postId = xmlRoot.SelectSingleNode("root/post/ comment[@id='101']").ParentNode.SelectSingleNode("title").InnerText Help! > I am trying to retrieve title of the parent (post) by the id of the > comment, Why doesn't this work? [quoted text clipped - 14 lines] > postId = xmlRoot.SelectSingleNode("root/post/ > comment[@id='101']").ParentNode.SelectSingleNode("title").InnerText If you insist on selecting the root first then you need to use xmlRoot.SelectSingleNode("post/comment[@id='101']") Or you could use your expression but then you need to call SelectSingleNode on the XmlDocument node e.g. xmldoc.SelectSingleNode("root/post/comment[@id='101']") And mixing XPath (SelectSingleNode) and DOM (ParentNode) is possible but you do not gain anything, once you use XPath you could as well use .. to access the parent with XPath e.g. xmldoc.SelectSingleNode("root/post/comment[@id='101']/../title")  SignatureMartin Honnen --- MVP XML http://JavaScript.FAQTs.com/ Free MagazinesGet these publications absolutely FREE for up to 12 months. There are no hidden fees and no obligation. Simply choose a title, complete the application form and submit it. Read more ...
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