When deserializing an array in C#, the element is always null.
May 13, 2021
When deserializing partially works, I have an issue. When I have an XML node with attributes, it loads all of the attribute data into my class correctly, but when I utilize elements, it just returns null.
In an XML file, I have the following information:
<?xml version="1.0" encoding="ISO8859-1"?>
...
<numbers>
<number id="55">name1</number>
<number id="4">name2</number>
</numbers>
...
The following is how the class is defined:
public class root
{
[XmlArray("numbers")]
[XmlArrayItem(ElementName = "number")]
public List<NumberObj> numbers { get; set; }
}
[Serializable]
public class NumberObj
{
[XmlElement]
public string name { get; set; }
[XmlAttribute("id")]
public string id { get; set; }
}
The name, on the other hand, remains empty. I’ve tried everything from changing the list to an array, but the name is always null.
I can see that the above class is incorrect because I receive the following when I serialize it back to XML:
<numbers>
<number id="123">
<number>abc</number>
</number>
<number id="45">
<number>abc</number>
</number>
</numbers>
Is there anyone that could put me in the correct direction?
Thanks
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Answers (1)
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I believe the right class definition is something like this.
[XmlRoot(ElementName="number")]
public class Number {
[XmlAttribute(AttributeName="id")]
public string Id { get; set; }
[XmlText]
public string Text { get; set; }
}
[XmlRoot(ElementName="numbers")]
public class Numbers {
[XmlElement(ElementName="number")]
public List<Number> Number { get; set; }
}
