COM+ app can't locate Assembly in the GAC

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Angelos Karantzalis - 24 Feb 2005 12:42 GMT

Hi guys,

I'm writting a COM+ app, which uses dynamic class loading to load up an
instance of a class from an assembly, using:
Activator.CreateInstance(strAssemblyName, strClassName);

I've placed the required assembly in the GAC, but I still get the dreaded
"File or assembly name SqlServerHandler, or one of its dependencies, was not
found" Exception ... :(

Any ideas ?

Cheers,
Angel
O:]

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Alexander Shirshov - 24 Feb 2005 13:04 GMT

Angelos,

Can we see what's the value of strAssemblyName? Remember, when an assembly
is in GAC you must provide a fully qualified name.

This doesn't work:

Activator.CreateInstance("System.Data", "System.Data.DataTable");

This does:

Activator.CreateInstance("System.Data, Version=1.0.5000.0, Culture=neutral,
PublicKeyToken=b77a5c561934e089, Custom=null", "System.Data.DataTable");

HTH,
Alexander

Hello Angelos,

> Hi guys,
>
[quoted text clipped - 11 lines]
> Angel
> O:]

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Angelos Karantzalis - 24 Feb 2005 13:17 GMT

Thanks Alex, that's probably it ! If this works, you're my personal hero for
today O:]

Cheers,
Angel
O:]

> Angelos,
>
[quoted text clipped - 30 lines]
> > Angel
> > O:]

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Angelos Karantzalis - 24 Feb 2005 13:31 GMT

YES !!! That was indeed it !!! Alex, whenever u come over to Greece, I owe
you one mate !

Cheers,
Angel
O:]

> Angelos,
>
[quoted text clipped - 30 lines]
> > Angel
> > O:]

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Michael Starr - 09 Mar 2005 17:57 GMT

I am also having trouble locating an Assembly in the GAC, but I am trying to
instantiate a class in that assembly from my component *directly* (ie, not
using Activatr, just doing a "new"). Do I have to use Activator so that I
can supply the fully-qualified assembly name? I suppose I could also
register the fully-qualified assembly in a config file somwhere, but what
config file would I use?

> Angelos,
>
[quoted text clipped - 31 lines]
> > Angel
> > O:]

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Alexander Shirshov - 11 Mar 2005 03:07 GMT

Michael,

Angelos was trying to instantiate the type unknown at compile time, hence
the use of Activator. You shouldn't need that since you can use new
operator.

What exactly is the problem you are having?

Alexander

>I am also having trouble locating an Assembly in the GAC, but I am trying
>to
[quoted text clipped - 41 lines]
>> > Angel
>> > O:]

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universalkid5958@duskmail.com - 22 Mar 2005 16:12 GMT

alexander@omnitalented.com wrote:

> Michael,
> Angelos was trying to instantiate the type unknown at compile time, hence
> the use of Activator. You shouldn't need that since you can use new
> operator.
> What exactly is the problem you are having?
> Alexander

Great!

universalkid5958@duskmail.com

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COM+ app can't locate Assembly in the GAC

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