Interfaces And Web Services

[Joe]

Hi,

Im having a little trouble with the fiollowing in a web service

Public Interface IBookAttribute
Property Description() As String
End Interface

I get "Cannot serialize Inteface MyApp.IBookAttribute"

Is it possible to do so, or are interfaces not a good idea for web services
(why not?)?

Thanks
Joe

 

[Michael Pearson]

I think it's because you don't impliment ISerializable. The webservice
doesn't know how to "translaste" your interface into XML. Do some research
on ISerializable and webservices.

Michael

 

[Simon Smith]

On Fri, 3 Oct 2003 13:41:56 -0400 in article
<#0#[email protected]> in
microsoft.public.dotnet.framework.aspnet.webservices , "Joe"

Hi,

Im having a little trouble with the fiollowing in a web service

Public Interface IBookAttribute
Property Description() As String
End Interface

I get "Cannot serialize Inteface MyApp.IBookAttribute"

Is it possible to do so, or are interfaces not a good idea for web services
(why not?)?

Thanks
Joe

I think that interfaces are almost by definition not serialisable. To
be serialisable a class must provide a default constructor - one with
no parameters: interfaces don't have and can't have constructors.

 

[Eirik M.]

Search MSDN for an article about how to use interfaces and web-services.
Haven't got the link handy, but the articles is out there somewhere

Eirik M

 

[Joe]

Thanks to all.
Joe