[Mono-aspnet-list] creating new web service from wsdl

Devin Venable venable.devin at gmail.com
Thu Sep 2 10:59:22 EDT 2010

Simple inheritance didn't seem to work, at least not using my pattern.  Here
is a fragment of the code (variable names changed to protect the innocent):

In TestService.asmx:

<%@ WebService Language="C#" Class="MyService.MyService" %>

In MyServiceGenerated.cs:

namespace MyService

/// <remarks/>
public abstract partial class MyServiceGenerated :
System.Web.Services.WebService {

http://tempuri.org/IMyServices/EnrollTransmitter", RequestNamespace="
http://tempuri.org/", ResponseNamespace="http://tempuri.org/",
    [return: System.Xml.Serialization.XmlElementAttribute(IsNullable=true)]
    public abstract WidgetEnrollmentResponse
WidgetEnrollmentRequest request);

In TestService.asmx.cs:

namespace MyService
 public class MyService : MyServiceGenerated

public override WidgetEnrollmentResponse
EnrollTransmitter(WidgetEnrollmentRequest request)
                        // TODO implement
return null;

Okay, so now when I deploy this, the web page shows up and there are no
visible service methods.  What am I doing wrong, or better yet, what is the
best practice for what I'm trying to do?

And thanks for the help!

2010/9/2 Alberto León <leontiscar at gmail.com>

> You need inherit MyServices in other class.
> An abtract class can't be instantiated, created, and can't store data.
> Allways need to be inherited.
> 2010/9/2 Devin Venable <venable.devin at gmail.com>
>> Background:  Linux developer new to .NET.  In the past I've successfully
>> deployed simple web services by creating asmx files and running them under
>> Apache via XSP.
>> Need: Create web service implementation from WSDL defined by 3rd party
>> This is what I've tried so far...
>> 1. Used wsdl2 to generate server stubs.
>> wsdl2 -server MyServices.wsdl
>> Web Services Description Language Utility
>> Mono Framework v2.0.50727.1433
>> There where some warnings while generating the code:
>>   MyServices.wsdl
>>     - This web reference does not conform to WS-I Basic Profile v1.1
>>         R2718: A wsdl:binding in a DESCRIPTION MUST have the same set of
>>         wsdl:operations as the wsdl:portType to which it refers.
>>           * Binding 'BasicHttpBinding_IMyServices', in Service Description
>>             'http://tempuri.org/'
>> (should this warning make me nervous?)
>> 2. Renamed resulting cs file to MyServices.asmx
>> 3. Added header to file:
>> <%@ WebService Language="c#" Codebehind="MyServices.asmx.cs"
>> Class="MyServices" %>
>> This KINDA worked.  I can load up and view the page in my browser:
>> http://localhost/MyServices.asmx
>> But when I try to invoke a method on the service from the web forms that
>> display, I get a message like:
>> *500 - Internal Server Error*
>> System.MissingMethodException: Cannot create an abstract class 'MyServices'.
>>   at System.Activator.CheckAbstractType (System.Type type) [0x00000]
>>   at System.Activator.CreateInstance (System.Type type, Boolean nonPublic) [0x00000]
>>   at System.Activator.CreateInstance (System.Type type) [0x00000]
>>   at System.Web.Services.Protocols.WebServiceHandler.CreateServerInstance () [0x00000]
>>   at System.Web.Services.Protocols.HttpSimpleWebServiceHandler.Invoke (System.Web.Services.Protocols.LogicalMethodInfo method, System.Object[] parameters) [0x00000]
>>   at System.Web.Services.Protocols.HttpSimpleWebServiceHandler.ProcessRequest (System.Web.HttpContext context) [0x00000]
>> Though I'm not a .NET developer, I'm a developer and can see why trying to
>> create an instance of an abstract class would be an issue.  What I'm not
>> clear on is what is the best
>> pattern to implement the concrete methods.   I've tried implementing a
>> concrete class with all of the methods in the asmx and made the class
>> inherit from the class generated by
>> wsdl2, but when I run the application, the methods disappear.  I'm
>> guessing I need to copy all of the blocks that look like this into the
>> concrete class:
>>  [System.Web.Services.WebMethodAttribute()]
>>     [System.Web.Services.Protocols.SoapDocumentMethodAttribute("
>> http://tempuri.org/IGTPServices/EnrollTransmitter", RequestNamespace="
>> http://tempuri.org/", ResponseNamespace="http://tempuri.org/",
>> ParameterStyle=System.Web.Services.Protocols.SoapParameterStyle.Wrapped,
>> Use=System.Web.Services.Description.SoapBindingUse.Literal)]
>>     [return:
>> System.Xml.Serialization.XmlElementAttribute(IsNullable=true)]
>> If anyone can point me to a short tutorial for creating a web service in
>> Mono using an existing WSDL, or give me tips herre, I would appreciate it.
>> _______________________________________________
>> Mono-aspnet-list mailing list
>> Mono-aspnet-list at lists.ximian.com
>> http://lists.ximian.com/mailman/listinfo/mono-aspnet-list
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.ximian.com/pipermail/mono-aspnet-list/attachments/20100902/3bda603e/attachment.html 

More information about the Mono-aspnet-list mailing list