System.Guid

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Michael Primeaux - 20 Oct 2006 05:13 GMT

I have a simple .NET 2.0 web service created with VS.NET 2005 with a single
web method with the following signature:

[WebMethod]
void HelloWorld(Guid parameter1);

When calling this method I receive the following error:
System.IndexOutOfRangeException: Index was outside the bounds of the array.
at System.Web.Services.Protocols.HttpServerType..ctor(Type type)
at System.Web.Services.Protocols.HttpServerProtocol.Initialize()
at System.Web.Services.Protocols.ServerProtocol.SetContext(Type type,
HttpContext context, HttpRequest request, HttpResponse response)
at System.Web.Services.Protocols.ServerProtocolFactory.Create(Type type,
HttpContext context, HttpRequest request, HttpResponse response, Boolean&
abortProcessing)If I change the type of parameter1 to a simple type such as
string or int then the method works as expected. My operating system is
Windows 2003 Server R2 (Enterprise Edition) with all the latest patches.

I see several other people have run into this error. Does anyone have an
idea how to correct this?

Thanks,
Michael

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John Saunders - 21 Oct 2006 18:46 GMT

>I have a simple .NET 2.0 web service created with VS.NET 2005 with a single
>web method with the following signature:
[quoted text clipped - 17 lines]
> I see several other people have run into this error. Does anyone have an
> idea how to correct this?

First of all, I'd suggest that System.Guid is a platform-specific type, so
why do you want to use it in a Web Service? Perhaps you should make your
parameter be of type string, and then parse out the Guid from the string.

John

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Michael Primeaux - 02 Nov 2006 16:02 GMT

Hi John,

I do understand the Guid parameter is a platform-specific type. That said,
the generated WSDL defines the type as a string but with format constraints
(a regular expression in the form
"[0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{12}".
I have both JAVA and PHP consumers calling several services with Guid
parameters without issue; again, from their perspective it's a string with
format contraints.

However, this does not explain the below exception. Any help specific as to
why the exception occurs is appreciated.

Kindest regards,
Michael

>>I have a simple .NET 2.0 web service created with VS.NET 2005 with a
>>single web method with the following signature:
[quoted text clipped - 24 lines]
>
> John

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RYoung - 05 Nov 2006 22:56 GMT

You could define GUID as a schema type and use that versus System.Guid and
relying on how the platform will translate it:

The following was snipped off the web:

<xsd:simpleType name="GUID">

<xsd:annotation>

<xsd:documentation xml:lang="en">

The representation of a GUID, generally the id of an element.

</xsd:documentation>

</xsd:annotation>

<xsd:restriction base="xsd:string">

<xsd:pattern

value="\{[a-fA-F0-9]{8}-[a-fA-F0-9]{4}-[a-fA-F0-9]{4}-[a-fA-F0-9]{4}-[a-fA-F0-9]{12}\}"/>

</xsd:restriction>

</xsd:simpleType>

I believe I've seen that same type definition for one of Microsoft's
products, SharePoint or something maybe.

Ron

> Hi John,
>
[quoted text clipped - 41 lines]
>>
>> John

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Michael Primeaux - 21 Dec 2006 13:21 GMT

Hi Ron,

I appreciate your time. As indicated in my previous post that is precisely
what I do. The issue is that I receive the following error when doing so:

[WebMethod]
void HelloWorld(Guid parameter1);

When calling this method I receive the following error:
System.IndexOutOfRangeException: Index was outside the bounds of the array.
at System.Web.Services.Protocols.HttpServerType..ctor(Type type)
at System.Web.Services.Protocols.HttpServerProtocol.Initialize()
at System.Web.Services.Protocols.ServerProtocol.SetContext(Type type,
HttpContext context, HttpRequest request, HttpResponse response)
at System.Web.Services.Protocols.ServerProtocolFactory.Create(Type type,
HttpContext context, HttpRequest request, HttpResponse response, Boolean&
abortProcessing)If I change the type of parameter1 to a simple type such as
string or int then the method works as expected. My operating system is
Windows 2003 Server R2 (Enterprise Edition) with all the latest patches.

> You could define GUID as a schema type and use that versus System.Guid and
> relying on how the platform will translate it:
[quoted text clipped - 73 lines]
>>>
>>> John

Reply to this Message

RYoung - 21 Dec 2006 18:26 GMT

Sorry about that, didn't realize System.Guid was serializable.

I can't reproduce the error here. Just a simple web service with the same
signature as what you've posted, and a console client calling the service
and passing a Guid.NewGuid() to it. Tried Guid.Empty as well.

Is it safe to say that since you aren't getting a SoapException, that the
exception is occuring on the client side? I know you mention changing the
signature from Guid to String and everything works, but I think there's an
issue serializing the value of what's supposed to be a guid on the client.

How about if you change the signature to string, have the service log the
value it receives and see if that value is a valid Guid format?

Ron

> Hi Ron,
>
[quoted text clipped - 95 lines]
>>>>
>>>> John

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