dotnet clr: Hi,

I get a InvalidCastException:
- ex {"Unable to cast object of type 'SecSoaService.NFFIServiceParameters'
to type 'SecSoaService.NFFIServiceParameters'."} System.Exception
{System.InvalidCastException}

The Object beeing casted originates from a Serialize / Deserialize
roundtrip. I have tried with both binary and soap serializer with no luck.

This is NOT ASP 2.0, but pure c#. I have seen similiar problem in blogs, but
all of these relates to ASP 2.0.

To avoid version mismatch I have located all copies of the dll on all local
hard drives and deleted them.

Lars.

[quoted text, click to view]

Does that type exist in multiple assemblies? If so, that's probably the
issue.

--
Jon Skeet - <skeet@pobox.com>
http://www.pobox.com/~skeet Blog: http://www.msmvps.com/jon.skeet

Hi,

No, the type is not defined in another assembly, nor is there any other =
cached assemblies lying around. =20

This is the code that fails:

The type SecSoaService.NFFIServiceParameters inherits from the abstract =
class ServiceParameters.
public ServiceParameters EditWebServiceParameters(ServiceParameters =
parameters)
{
SecSoaService.NFFIServiceParameters param =3D null;
try
{
param =3D (SecSoaService.NFFIServiceParameters)parameters; =
//exception is thrown.
}
catch (Exception ex)
{
System.Diagnostics.Trace.WriteLine(ex.Message);
}

// test =20
try =20
{
param =3D (SecSoaService.NFFIServiceParameters)(new =
SecSoaService.NFFIServiceParameters()); //no exception.
}
catch (Exception ex)
{
System.Diagnostics.Trace.WriteLine(ex.Message);
}
...
}=20

From the watch window i extract the following:
parameters.GetType().Module.FullyQualifiedName =3D =
"c:\\temp\\IFM\\Tool\\modules\\services\\secsoa\\SecSoaService.dll" =
string
and the=20
parameters.GetType().AssemblyQualifiedName =3D =
"SecSoaService.NFFIServiceParameters, SecSoaService, Version=3D1.0.0.0, =
Culture=3Dneutral, PublicKeyToken=3De9c77c3cc6a7a0ac"

And the param variable gets the following values after beeing assigned:
param.GetType().Module.FullyQualifiedName =3D =
"C:/temp/IFM/Tool/modules/services/secsoa\\SecSoaService.dll" string

param.GetType().AssemblyQualifiedName =3D =
"SecSoaService.NFFIServiceParameters, SecSoaService, Version=3D1.0.0.0, =
Culture=3Dneutral, PublicKeyToken=3De9c77c3cc6a7a0ac"=20

As you can see both types have the same Assembly Qualified name and the =
same Module FullyQualifiedName.

So as far as i can see these two types are identical!
The only thing that is different is the format of the FullyQualifiedName =
path. =20

regards,
Lars

=20



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