[Solved-3 Solutions] XmlSerializer - There was an error reflecting type
Error Description:
- Using C# .NET 2.0, we have a composite data class that does have the
[Serializable]attribute on it. When we create anXMLSerializerclass and pass that into the constructor:
XmlSerializer serializer = new XmlSerializer(typeof(DataClass));
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- We get this exemption saying:
There was an error reflecting type.
Solution 1:
- Look at the inner exception that you are getting. It will tell which field/property it is having trouble serializing.
- We can exclude fields/properties from xml serialization by decorating them with the
[XmlIgnore]attribute.
Solution 2:
- Serialized classes must have default (i.e. parameter less) constructors. If we have no constructor at all, that's fine; but if we have a constructor with a parameter, we'll need to add the default one too.
Solution 3:
- All the objects in the serialization graph have to be serializable.
- Since
XMLSerializeris a black box, check these links if you want to debug further into the serialization process.
Changing where XmlSerializer Outputs Temporary Assemblies
HOW TO: Debug into a .NET XmlSerializer Generated Assembly