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Problem with Assembly.CreateInstance

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This message was discovered on microsoft.public.dotnet.framework.

CoffeeMug

When I execute the following code from ASP.NET my application
sporadically hangs inside CreateInstance(). The hangs don't occur every
time but are frequent enough to be considered a serious problem.

Assembly asm = Assembly.GetAssembly(typeof(MyType));
Type t = asm.GetType("MyType2");
object obj = asm.CreateInstance("MyType2");

MyType as well as MyType2 are C# wrappers for native C functions. I
also noticed that methods of these wrappers (that PInvoke native code)
randomly throw NullReferenceException and CreateInstance hangs in
subsequent calls to the page. The problem is tricky to debug since I
can't figure out exact circumstances of the crashes. If anyone could
point me to suggestions or ideas, it'd be great.

Thanks.

Reply to this message...

Robert Jordan

CoffeeMug wrote:

[Original message clipped]

you may try this more straightforward code:

object o = Activator.CreateInstance(typeof(MyType));

bye
Rob

Reply to this message...

Dot Net Guruias Sjögren

[Original message clipped]

Anywhere you can do that, you should also be able to just do

object o = new MyType();

Dot Net Guruias

--
Dot Net Guruias Sjögren [MVP] mattias @ mvps.org
http://www.msjogren.net/dotnet/ | http://www.dotnetinterop.com
Please reply only to the newsgroup.

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Robert Jordan

Dot Net Guruias Sjögren wrote:

[Original message clipped]

LOL!

bye
Rob

Reply to this message...

Girish bharadwaj

Make sure that you can instantiate them without the CreateInstance() calls.
i.e. As someone suggested, try new. If that works. then investigate the
CreateInstance().
Beyond that, How were these wrappers written?

"CoffeeMug" <Click here to reveal e-mail address> wrote in message
news:chse2b$Click here to reveal e-mail address...
[Original message clipped]

Reply to this message...

	System.Activator
	System.NullReferenceException
	System.Reflection.Assembly

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