XML Serialization implementing System.Xml.Serialization in .NET Core - Missing Attributes
I've been researching this but I've spent hours debugging this and I tried several approaches but none seem to work... I'm working through a tutorial and Hey everyone, I'm running into an issue that's driving me crazy. I've been banging my head against this for hours. Hey everyone, I'm running into an issue that's driving me crazy. I'm working with a question while serializing an object to XML using `System.Xml.Serialization.XmlSerializer` in .NET Core. The scenario arises when I attempt to serialize a class that contains properties with attributes, specifically when I use `[XmlElement]` and `[XmlAttribute]`. Some of the properties are not being serialized as expected, and I'm not receiving any behavior messages, just incomplete XML output. Here's the class I'm trying to serialize: ```csharp public class Person { [XmlElement(ElementName = "fullName")] public string Name { get; set; } [XmlAttribute(AttributeName = "age")] public int Age { get; set; } [XmlElement(ElementName = "email")] public string Email { get; set; } } ``` And I'm serializing it like this: ```csharp var person = new Person { Name = "John Doe", Age = 30, Email = null }; var xmlSerializer = new XmlSerializer(typeof(Person)); using (var stringWriter = new StringWriter()) { xmlSerializer.Serialize(stringWriter, person); Console.WriteLine(stringWriter.ToString()); } ``` The output XML is missing the `Email` element completely when it is `null`, but I expected it to serialize as `<email xsi:nil="true" />`. I've tried setting the `Email` property to an empty string and even explicitly adding `[XmlElement(IsNullable = true)]`, but the element still doesn't appear when it's null. I also made sure my XML namespaces are properly configured. Is there a way to ensure that nullable properties are represented in the output XML, even when they are null? I'm working on a application that needs to handle this. Am I missing something obvious? For context: I'm using C# on Windows. What's the best practice here? My development environment is Linux. Thanks in advance! I'm on Ubuntu 20.04 using the latest version of C#. What am I doing wrong? Any ideas how to fix this? What's the best practice here?