Unexpected Namespace Handling in XML with .NET's XDocument - Elements Not Found
Can someone help me understand I've looked through the documentation and I'm still confused about Quick question that's been bugging me - I am using .NET 5 with the `System.Xml.Linq` namespace to parse an XML file that contains multiple namespaces... I am trying to access specific elements, but I'm encountering issues where some elements that I expect to retrieve are returning null. For instance, consider the following XML snippet: ```xml <root xmlns:ns="http://example.com/ns"> <ns:item id="1">Item One</ns:item> <ns:item id="2">Item Two</ns:item> <item id="3">Item Three</item> </root> ``` In this XML, the `<item>` elements are defined in two different ways, one with the namespace `ns` and another without any namespace. I initially tried using the following LINQ query to retrieve all items: ```csharp XDocument xdoc = XDocument.Load("path/to/xml/file.xml"); var items = xdoc.Descendants("item").ToList(); ``` However, this returns an empty list because it is only picking up the unqualified `<item>` element without any namespace. I attempted to specify the namespace like this: ```csharp XNamespace ns = "http://example.com/ns"; var namespacedItems = xdoc.Descendants(ns + "item").ToList(); ``` This does return the elements with the namespace, but I need a way to retrieve both namespaced and non-namespaced `<item>` elements in a single query. Using `Union` to combine the results seems inefficient, and I'm looking for a more elegant solution. Is there a way to adjust my LINQ query to account for both cases without performing multiple queries? Any suggestions on best practices when dealing with mixed namespace scenarios in XML would be greatly appreciated! Additionally, I've checked the XML structure and made sure that the `xmlns` declarations are correctly defined, so I'm quite puzzled as to why the non-namespaced items are being ignored. Any help would be awesome! This is part of a larger application I'm building. Thanks in advance! For context: I'm using Csharp on Ubuntu. Is there a better approach?