The string '' is not a valid AllXsd value - meh?

[Neil Chambers]

Hello there - I'm quite new to WebServices and asp.net and I've exhausted my
troubleshooting capacity on this one.

I am running a lookup method against a remote webservice and am expecting
some data back. It would seem as if the response I am getting back is
actually missing a field and/or cannot be converted from '' (Blank?) to a
dataType.

On the face of it, it seems as if a dateTime conversion is failing - at
least from my limited view of things.

Is it possible to narrow down which property is being improperly formatted?

What other kinds of tests can I run?

Considering the WebService definition/proxy was built using the WSDL tool
from a schema file, how appropriate might it be to modify the resultant
service difinition in order to fix this (if I actually find what the problem
is!)?

Sincerely - n
***************************************************************

Server Error in '/Test' Application.
--------------------------------------------------------------------------------

The string '' is not a valid AllXsd value.
Description: An unhandled exception occurred during the execution of the
current web request. Please review the stack trace for more information
about the error and where it originated in the code.

Exception Details: System.FormatException: The string '' is not a valid
AllXsd value.


Stack Trace:


[FormatException: The string '' is not a valid AllXsd value.]
System.Xml.Schema.XsdDateTime..ctor(String text, XsdDateTimeFlags kinds)
+1017115
System.Xml.XmlConvert.ToDateTime(String s, XmlDateTimeSerializationMode
dateTimeOption) +38
System.Xml.Serialization.XmlCustomFormatter.ToDateTime(String value) +60
System.Xml.Serialization.XmlSerializationReader.ToDateTime(String value)
+30
Microsoft.Xml.Serialization.GeneratedAssembly.XmlSerializationReaderpmService.Read11_TicketLookupType(Boolean
isNullable, Boolean checkType) +2968
Microsoft.Xml.Serialization.GeneratedAssembly.XmlSerializationReaderpmService.Read12_LookupTicketResponseType(Boolean
isNullable, Boolean checkType) +466
Microsoft.Xml.Serialization.GeneratedAssembly.XmlSerializationReaderpmService.Read18_lookupTicketResponse()
+166
Microsoft.Xml.Serialization.GeneratedAssembly.ArrayOfObjectSerializer1.Deserialize(XmlSerializationReader
reader) +40
System.Xml.Serialization.XmlSerializer.Deserialize(XmlReader xmlReader,
String encodingStyle, XmlDeserializationEvents events) +161

[InvalidOperationException: There is an error in XML document (8, 463).]
System.Xml.Serialization.XmlSerializer.Deserialize(XmlReader xmlReader,
String encodingStyle, XmlDeserializationEvents events) +637
System.Xml.Serialization.XmlSerializer.Deserialize(XmlReader xmlReader,
String encodingStyle) +32
System.Web.Services.Protocols.SoapHttpClientProtocol.ReadResponse(SoapClientMessage
message, WebResponse response, Stream responseStream, Boolean asyncCall)
+1671
System.Web.Services.Protocols.SoapHttpClientProtocol.Invoke(String
methodName, Object[] parameters) +204
pmService.lookupTicket(LookupTicketRequestType lookupTicketRequest) +47
_Default.ticketLookup(String tNum) in
c:\Inetpub\wwwroot\pmwsTest\Default.aspx.cs:32
_Default.TicketLookupButton_Click(Object sender, EventArgs e) in
c:\Inetpub\wwwroot\pmwsTest\Default.aspx.cs:46
System.Web.UI.WebControls.Button.OnClick(EventArgs e) +105
System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument)
+107
System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String
eventArgument) +7
System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler
sourceControl, String eventArgument) +11
System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +33
System.Web.UI.Page.ProcessRequestMain(Boolean
includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1746