There is an unclosed literal string. Line 1, position 411.

I was recently quite scared to see an exception message thrown up from my Infopath form published to a sharepoint list. And most interestingly while I was trying to the same operation from Infopath designer preview, form was working correctly without any exception.

After a bit of search here and there I could not find any solution.

Suddenly I realised that the event causing this exception trying to use a filed which does not exist in the form.

So if you are seeing the same error message most probably your code is trying to access a field that does not exist or you have misspelled the name.

------------ exception message ------------

There is an unclosed literal string. Line 1, position 411.

System.Xml.XmlException: There is an unclosed literal string. Line 1, position 411.
at System.Xml.XmlTextReaderImpl.Throw(Exception e)
at System.Xml.XmlTextReaderImpl.Throw(String res, String arg)
at System.Xml.XmlTextReaderImpl.ParseAttributeValueSlow(Int32 curPos, Char quoteChar, NodeData attr)
at System.Xml.XmlTextReaderImpl.ParseAttributes()
at System.Xml.XmlTextReaderImpl.ParseElement()
at System.Xml.XmlTextReaderImpl.ParseElementContent()
at System.Xml.XmlTextReaderImpl.Read()
at System.Xml.XmlLoader.LoadNode(Boolean skipOverWhitespace)
at System.Xml.XmlLoader.LoadDocSequence(XmlDocument parentDoc)
at System.Xml.XmlLoader.Load(XmlDocument doc, XmlReader reader, Boolean preserveWhitespace)
at System.Xml.XmlDocument.Load(XmlReader reader)
at Microsoft.Office.InfoPath.Server.Xml.InfoPathXmlDocument.Load(XmlReader reader)
at Microsoft.Office.InfoPath.Server.DocumentLifetime.DataObject.<>c__DisplayClass3.<.ctor>b__0()
at Microsoft.Office.Server.Diagnostics.FirstChanceHandler.ExceptionFilter(Boolean fRethrowException, TryBlock tryBlock, FilterBlock filter, CatchBlock catchBlock, FinallyBlock finallyBlock)
at Microsoft.Office.Server.Diagnostics.ULS.SendWatsonOnExceptionTag(ULSTagID tagID, ULSCat categoryID, String output, Boolean fRethrowException, TryBlock tryBlock, CatchBlock catchBlock, FinallyBlock finallyBlock)
at Microsoft.Office.InfoPath.Server.DocumentLifetime.DataObject..ctor(EnhancedBinaryReader reader, Solution solution)
at Microsoft.Office.InfoPath.Server.DocumentLifetime.DataObjects.<>c__DisplayClass2.<.ctor>b__0(EnhancedBinaryReader innerReader, DataObject& newObject)
at Microsoft.Office.InfoPath.Server.Serialization.EnhancedBinaryReader.ReadObjectMap[KeyT,ValueT](Dictionary`2 map, ItemReaderDelegate`1 readKey, ItemReaderDelegate`1 readValue)
at Microsoft.Office.InfoPath.Server.Serialization.EnhancedBinaryReader.ReadObjectMap[ValueT](Dictionary`2 map, ItemReaderDelegate`1 readValue)
at Microsoft.Office.InfoPath.Server.DocumentLifetime.DataObjects..ctor(EnhancedBinaryReader reader, Solution solution)
at Microsoft.Office.InfoPath.Server.DocumentLifetime.DocumentSessionState.DesterilizeVersion1(EnhancedBinaryReader reader, Solution solution)
at Microsoft.Office.InfoPath.Server.DocumentLifetime.DocumentSessionState..ctor(EnhancedBinaryReader reader, Solution solution)
at Microsoft.Office.InfoPath.Server.DocumentLifetime.DocumentSessionState.CreateFromByteArray(Byte[] serializedSessionState, Byte[] serializedVersionState, Solution solution)
at Microsoft.Office.InfoPath.Server.DocumentLifetime.DocumentSessionStateManager.GetSessionState(HttpContext context, String editingSessionID, Solution solution)
at Microsoft.Office.InfoPath.Server.DocumentLifetime.Document.LoadFromSession(HttpContext context, SPSite contextSite, EventLogStart eventLogStart, Solution solution)
at Microsoft.Office.InfoPath.Server.Controls.PostbackPage.<>c__DisplayClass1.b__0()