Hi,

I have create a SmartObject, but when I use it to mapping return data in a XMLField, the event raise:

"Object reference not set to an instance of an object."

 It work only if I map return data in a DataField and then copy it via code:

//Get the XML Field string

string xml = K2.ProcessInstance.XmlFields["NOMEFORM"].Value.ToString();

//Load up the XML

XmlDocument doc = new XmlDocument();

//Create a name space manager for InfoPath

XmlNamespaceManager nsMgr = new XmlNamespaceManager(doc.NameTable);

nsMgr.AddNamespace("my", doc.DocumentElement.GetNamespaceOfPrefix("my"));

//Now set some values

doc.SelectSingleNode("//my:ROOT/my:ELEMENTO", nsMgr).InnerText = K2.ProcessInstance.DataFields["NOMEDELDATAFIELD"].Value.ToString();

//Now set the value back into the XML Field

K2.ProcessInstance.XmlFields["NOMEFORM"].Value = doc.OuterXml;