I am looking for a way to determine in RunTime if a given object is Xml
Serializable (short of trying to serialize it to xml and catching the
exception).

Is this possible?

Since an object must have a Default Constructor to be XmlSerializable I have
tried something like:

Type valueType = aRandomObject.GetType();
bool isXmlSerializable = valueType.IsClass && !valueType.IsValueType
? valueType.GetConstructor(new Type[]{}) != null : true;

but this is not correct. Am I on the right track or missing something
obvious...?

Any ideas?

Thanks in advance
Tim