System.InvalidOperationException: Instance validation error: '3' is not a valid value for SomeEnumInMyAppwhich turned out to be quite a google-unfriendly exception. The exception is thrown when trying to serialize an enum with a value that isn't explicitly in the declaration of the enum. A couple of people dealt with this, but I don't really want to manually edit the WSDL, and I don't care right now about breaking a future version of the web service (not likely to happen in my case)
In case nothing of this makes any sense to you, let's see some code:
Given this enum declaration:
public enum Epopo {
Uno = 1,
Dos = 2
}"Epopo?" Yes, Epopo. Just because.This test passes:
[Test]
public void SerializeEnumToXml1() {
Epopo p = Epopo.Uno;
using (MemoryStream ms = new MemoryStream()) {
XmlSerializer xml = new XmlSerializer(typeof(Epopo));
xml.Serialize(ms, p);
}
}But this one fails with the mentioned exception: [Test]
public void SerializeEnumToXml2() {
Epopo p = Epopo.Uno | Epopo.Dos;
using (MemoryStream ms = new MemoryStream()) {
XmlSerializer xml = new XmlSerializer(typeof(Epopo));
xml.Serialize(ms, p);
}
}Hmm. What if we try with a LosFormatter instead of XmlSerializer? [Test]
public void SerializeEnumToLosFormatter() {
Epopo p = Epopo.Uno | Epopo.Dos;
LosFormatter los = new LosFormatter();
using (MemoryStream ms = new MemoryStream()) {
los.Serialize(ms, p);
}
}Test passes. Damn you, XmlSerializer. What about XmlEnum? public enum XmlEpopo {
[XmlEnum("Uno")]
Uno = 1,
[XmlEnum("Dos")]
Dos = 2
}
[Test]
public void SerializeEnumWithXmlEnumToXml() {
XmlEpopo p = XmlEpopo.Uno | XmlEpopo.Dos;
using (MemoryStream ms = new MemoryStream()) {
XmlSerializer xml = new XmlSerializer(typeof(XmlEpopo));
xml.Serialize(ms, p);
}
}Doesn't work either... Well, after that I despaired a bit and started trying everything: XmlElement, PowerCollections.Set, Iesi.Collections.ListSet, Dictionary<Epopo, object>, but nothing worked. Ultimately, I used a List<Epopo>, like this: [Test]
public void SerializeListOfEnum() {
List<Epopo> l = new List<Epopo>();
l.Add(Epopo.Uno);
l.Add(Epopo.Dos);
using (MemoryStream ms = new MemoryStream()) {
XmlSerializer xml = new XmlSerializer(typeof(List<Epopo>));
xml.Serialize(ms, l);
}
}
It sucks, I know, but at least it works. If any knows a better solution, feel free to post a comment!By the way, it seems that Microsoft is having this same problem as well...
Full code for these tests is here.
