Re: ASP.NET and COM+

Hi Bennie.

Yes, it makes sense.

Will this new assembly only have the Interface signatures? And I believe
that this new assembly will not be installed on COM+, right?

Thanks for the response!

Rinaldo


"Bennie Haelen" <bhaelen@xxxxxxxxx> wrote in message
news:e0nir7NsFHA.1032@xxxxxxxxxxxxxxxxxxxxxxx
> Hi Rinaldo,
>
> You should create a new assembly, which contains the IProvider interface.
> When you COM+ component runs as a Server Application,
> the call to the Serviced Component is remoted, but your client does not
> have the Interface locally, hence the "QI for IProvider" failed message.
>
> When you run as a library package, you have your assembly local within the
> same appdomain, so you don't have that issue.
>
> Heop this helps,
>
> Bennie Haelen
>
> Rinaldo F. Junior wrote:
>> Hi!
>>
>> I am trying to run a simple prototype for a web application that involves
>> ASP.NET and COM+. The solution is composed from the following projects
>>
>> ASP.NET -> calls -> .NET Serviced Component -> calls -> .NET Component ->
>> calls -> Database.
>>
>> My Serviced Component has the following elements (some code ommited for
>> clarity):
>>
>> <InterfaceTypeAttribute(ComInterfaceType.InterfaceIsDual),
>> Guid("9ED54F84-A89D-4fcd-A854-44251E925F09")> _
>> Public Interface IProvider
>> Function GetUsers() As DataSet
>> End Interface
>>
>> <ClassInterface(ClassInterfaceType.AutoDual),
>> Guid("9FK51F44-B19E-4fcd-A288-32901G925P02")> _
>> Public NotInheritable Class Provider
>> Inherits ServicedComponent
>> Implements IProvider
>>
>> Public Function GetUsers() As DataSet Implements
>> IProvider.GetUsers
>> Dim var As New DALNet 'Simple DAL component, out of COM+
>> .............
>> End Function
>>
>> End Class
>>
>> This component is registered under COM+ 1.5 as a Server application, it
>> has an strong name, fixed assembly version, fixed applicationid, fixed
>> progid and is installed on the GAC. The component has a Role that
>> contains the ASP.NET user.
>>
>> When I call the Serviced Component from ASP.NET I receive the error
>> "QueryInterface for interface IProvider not found". If I change the
>> component to run as a Library application this error doesn't occur. I
>> have read a lot about ASP.NET/COM+ but could not find anything to help me
>> solve this problem. I really appreciate your help.
>>
>> Best regards,
>> Rinaldo F. Junior


.

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