dotnet component services: Strange behavior with Custom Exception and ServicedComponent -- dotnet component services

Strange behavior with Custom Exception and ServicedComponent

John Leyva
10/24/2003 3:16:04 PM

dotnet component services: This is the enviroment

A WinForm application call a ServicedComponent, it is activated in Server Mode.
This ServicedComponent, throw a CustomException that is catched by de WinForm Application.

When the ServicedCompoent does not implement another Interface, the exception catched by
the application is CustomException, like I expected.
However when the ServicedCompoent does implement another Interfacem the exception catched by
the application is ApplicationException.

thanks for any help.

CODE

-- Custom Exception, Defined in another class library, ----

[Serializable]
public class CustomException : ApplicationException
{

protected CustomException(SerializationInfo info,
StreamingContext context) : base(info, context) {}

public CustomException() : base() {}

public CustomException(string message) : base(message) {}

public CustomException(string message,Exception inner) :
base(message, inner) {}
}

-- Class Library with ServicedComponent, Activation Mode :
Server---------------------------------

public interface IThrowExcepcion: IDisposable
{
void ThrowCustomException(string Mensaje);
}

// In this way, works. But, if i implement
IThrowExcepcion, it does not work
public class ThrowExcepcion:
ServicedComponent //,IThrowExcepcion

{
public ThrowExcepcion() {}

public void ThrowCustomException(string Mensaje)
{
throw new ION.Servicios.Excepciones.CustomExcepcion
(Mensaje);
}
}

--- To show the case i useo the next code

try
{
using (Test.ThrowExcepcion Tester = new
(Test.ThrowExcepcion())
{
Tester.ThrowCustomException ("Prueba1");
}
}
catch (CustomExcepcion E)
{
// if i do not implement IThrowExcepcion, it execute
this code
MessageBox.Show ("with IThrowExcepcion");
}
catch (ApplicationException E)
{
// if i implement IThrowExcepcion, it execute this code
MessageBox.Show ("without IThrowExcepcion");
}

Re: Strange behavior with Custom Exception and ServicedComponent

Alexey Kuchmenko
12/18/2003 7:56:28 PM

The possible solution is to inclide in nterface method an [out] parameter of
custom type. This type should be serializabe, of course.
Im also get this problem now. I have an application, logic is implmented as
regular assembly, but now it must be placed into COM+. So, now I have to add
the parameter to all the methods and then rewrite ALL the client code! But I
don't want this silly work! Does anyone know some other solution?!

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