👀 Views: 11 💬 Answers: 1 📅 Created: 2025-06-14

c# xml serialization C#

I'm updating my dependencies and I've been working on this all day and I'm having trouble with I've been banging my head against this for hours. I'm updating my dependencies and I'm sure I'm missing something obvious here, but I'm working on a personal project and I'm trying to serialize a complex object to XML in C# using the `XmlSerializer` class, but I'm facing an issue where elements in a non-default namespace are not being serialized correctly. My object contains properties that are decorated with the `XmlElement` attribute specifying different namespaces, but when I serialize the object, those elements are simply missing from the output. Here's a simplified version of my class: ```csharp [XmlRoot(Namespace="http://example.com/schema")] public class MyData { [XmlElement(Namespace="http://example.com/schema/item")] public string ItemName { get; set; } [XmlElement(Namespace="http://example.com/schema/description")] public string ItemDescription { get; set; } } ``` When I try to serialize an instance of `MyData` like this: ```csharp var myData = new MyData { ItemName = "Sample Item", ItemDescription = "This is a sample description." }; var serializer = new XmlSerializer(typeof(MyData)); using (var stringWriter = new StringWriter()) { serializer.Serialize(stringWriter, myData); Console.WriteLine(stringWriter.ToString()); } ``` The output XML is missing the `ItemName` and `ItemDescription` elements altogether. Instead, I only see the root element with the namespace. I've verified that the XML namespaces are correctly defined, and I've even tried using `XmlSerializerNamespaces` to include the namespaces explicitly: ```csharp var namespaces = new XmlSerializerNamespaces(); namespaces.Add("item", "http://example.com/schema/item"); namespaces.Add("desc", "http://example.com/schema/description"); serializer.Serialize(stringWriter, myData, namespaces); ``` However, that also resulted in the same missing elements issue. I've also checked that my `.NET` version is `5.0` and that I'm including the necessary `System.Xml` namespace. Am I missing something in the serialization process, or is there a specific setup required for handling non-default namespaces with `XmlSerializer`? Any insights would be greatly appreciated. I'm working on a CLI tool that needs to handle this. Has anyone else encountered this? For context: I'm using C# on Ubuntu. My development environment is Linux. Any examples would be super helpful. I'm open to any suggestions. I'd love to hear your thoughts on this. I'm using C# LTS in this project. I'd love to hear your thoughts on this. This is my first time working with C# 3.9. Has anyone else encountered this? I'm using C# stable in this project. Any pointers in the right direction? Any suggestions would be helpful.